Aesthetically, I’m always gonna go for the OBS. Just is all around tough looking and the nostalgia of the “smokers window” and the push button door handles. An F350 crew cab long bed 7.3 with 4x4 is the Holy Grail of trucks IMO.
Just picked up a project for my channel 2001 7.3 6 speed dually 4x4 135k Miles for $5700 so excited!!! Catching up on some RUclips 7.3 materials before tackling the big girl!!
That's awesome, a 6 speed 7.3, so cool! It sounds like you got a steal of a deal with such low miles. A good place to look online for more info would be the forums like powerstroke.org or fordtrucks.com I believe. Heck if you have any questions I know a thing or two as well. FYI, familiarize yourself with the cam position sensor, ICP sensor, and IPR. Just knowing what they do will help save you a bunch of headaches. Those are the most troublesome part of the 7.3, especially the cam position sensor. Have fun!
I have owned a lot of Fords. The obs is by far my favorite. The power lacks by far in the old 7.3s compared to my 2002 7.3. I still prefer the old ones. I know I am going to get a lot of negative comments from this comment, But I love the sound of a 90s 7.3 over any 12 valve Cummins. The old 7.3s just sound good. I was diesel before diesel was cool.
We're mostly 7.3/ Ford guys here, so I don't think you'll have to worry about negative feedback! You say the OBS lacks in power relative to the SD, and that is true in stock form, but believe me, after a set of 160cc/00% injectors and an Intercooler, my OBS will beat the socks off a stock SD without even trying. Unless you're talking about the 7.3 idi, which is also an awesome engine, but it is definitely down on power comparable to the SD 7.3. There is one other thing those 12 valve guys are really missing out on though, besides having the cooler sounding engine... Electronic engine control. With that we can burn fuel so much cleaner and add performance a little easier at first too with just a tune. There's no school like old school, keep dieseling!
@@Rnddiesel Yes stock that is. The 02 7.3s I should say way quicker. I had a 99 And when I got the 02 it was a significant difference in takeoff. I like the old idi 7.3s. Simple engine. The idi is getting harder to find these days.
@@steiger256 I'll second that on the IDI's. When I was looking for one a couple years ago there were way more than I see now. It's like the supply just dried up. I'm betting more than anything they're just sitting in a field somewhere rusting away, their owners probably don't even know what they've got. At least we've got our 7.3's!
OBS have that distinctive cackle that I like. My understanding is later model 7.3L Powerstrokes have a special Long Lead injector for number 8 cylinder to help cut down on that cackle but I'm not 100% sure on that.
@@steiger256 love my old very very rusty 93 idi manual 4x4.Also have a 2000 4x4 manual powerstroke. very sharp looking it was garage kept until I bought it 2.5 yrs ago. Like you I prefere my old obs idi.Turns out it has been a special order.Vinal bench seat and floor. It had a head liner, doors with the map pockets and liner. Little coffee cup and change holder attached to the fron of the seat. Had a headliner , ac and cassette /am,fm radio. Finally it had the 4x4 shift on the floor with auto hubs. To me it was/is the perfect truck. New one has carpet and cloth seats?? why?? even with the big mirrors I have blind spots all around. idi ha small mirrors and never a problem.
I live in Australia and I had a RHD 2005 f250 7.3 but it was equivilant to your 2002, I now have a RHD obs with a 1998 build plate and I have to say I love the OBS more. I have done the e fuel conversion, dump pipe, fuel tank sumps so I feed e fuel pump with 2 tanks.... And the thing is just great fun.... And the old obs engine noise is great... Anyway loved your video.... It's only a
Don't know how old you but as a 24yr guy that grew up building racing mowers mustangs and diesel truck it's nice to see another young guy driving a truck an actually know what he has. Mines a L99 and I've got 355k and never had one of the sticks pulled. The 7.3 is the Cadillac of the million mil diesel engines. Slower than a 6.0 and not as fuel efficient as the 6.7 but it will out last them. Love my 6.0 if im Running late though😉
That's awesome, It sounds like you've been in the field of making engines run fast for a long time, I'm sure you know more about it than I do, and I'm sure it must be fun too! I'm only 21 years old for the time being, so I don't have a whole lot of cash on hand to make my truck not so slow. 7.3's sure do last a long while, you've got that one right. Heck I guess they really don't make enough power to hurt themselves. I'm sure that 6.0 is quick! I hope to maybe get me one of those one day, get my hands dirty with it and have some more experience working on a slightly newer model. It also would be cool to experiment and see what else can be done to the 6.0 to make it more reliable in the long term, and heck, of course make the old 7.3 faster too! With 355k miles, do you think you'll replace injectors anytime soon? I've got the same mileage on mine, and surely it couldn't hurt to have new sticks?
Rnddiesel Oh Lord! I see I shouldn't comment when it's late lol. I've just been doing upgrades for fuel and longevity: 1.15 van turbo w/ats housing, a cnc fab pump and a few other fuel mods. Hybrid Injectors are next. I'm not looking to make a rocket ship out of it. But, a hydra tune, sticks and maintaining my maturity in her is the plan... "plan". I've done a the 05+ axle swap and dash swap. Axle upgrade by far was my favorite. Your video is very knowledgeable, un biased and accurate. My 6.0 truck is a monster but it's injectors won't still be around at 300+.
Haha, no I just get up that early, I like the morning, get to have coffee. It sounds like you've got quite a bit of mods done to your truck, heck it probably looks like a new truck with the dash swap! With hybrid injectors you can really pump out a lot of power with a single HPOP. My main goal is to get my truck to run like my Dad's 2013 LML Duramax, 397 hp and 765 ft*lbs with a VGT turbo like the 6.0, that thing takes off like a jackrabbit! Only hopefully the 7.3 will be much cheaper.
Thank you! Yeah I really do enjoy working with the old 7.3, it has and continues to teach me new skills. I don't know about you, but if I had to buy another truck again, I'd still buy the same thing!
Grew up around a red 97 f350. Lifted a hair. Learned to drive in it! It was a 4 door long bed. Sadly it rusted out but it was a great truck, really miss it
Thank you, I appreciate it! I certainly didn't cover every little detail of course, but it at least gives folks a place to start. Of course I'm still working on new videos. Since I've got you here and if you don't mind me asking. What sort of videos do you hope to see more of?
My boss had a 97 heavy duty and I loved it. I thought it was a late 80’s early 90’s because of the vent window. Boy was I surprised when I finally read the door sticker and found out it was a 97. Just picked up my 97 F250HD 7.3 and it’s exactly what I wanted. A truck that just works
This video is making me want to buy an OBS. I'm not selling my '01 superduty, never, but I do have this feeling that if I had both, I'd drive the OBS more. Either way, I love these trucks. I've had mine for almost 2 years now and it hasn't done me wrong as a daily driver. Maybe one day I'll clean it and make it presentable and make a video or something.
Kevin Huber, I'll second that one! You know a lot of folks brag about their Cummins, but I still bleed IH red. International sure knows how to make engines, and the injection technology for the time of the 7.3 was way more advanced than the all mechanical 5.9 Cummins. Yet the 7.3 still runs like a workhorse even with electronics. Gotta love 7.3's!
I have a 2000 F350 4X4, 4R100 automatic transmission, crew cab, long bed, single rear wheel, with about 190,000 miles on it. Everything is stock original. I bought it used in 2009 for $15,000. I did have to replace the cam position sensor not long after I purchased it. The truck was missing that overdrive button when I bought it, still don't have one for it. Power lock motors don't work but found out that is a common problem that can be fixed by taking them out and drilling out the rivets and then use aluminum foil as a replacement for the contactors. I have not performed that fix yet, I'm being lazy and just manually lock them. I run Rotella T6 full synthetic for the oil. Changed out the rear differential fluid a couple years ago with Amsoil fluid. I did have the problem with the air conditioner cycling on/off but I read about cleaning and possibly shimming the AC clutch thing up in the engine compartment, that fixed that but I have another AC problem that is called the blend door. Have you had these problems? I live in Round Rock, Texas and we need AC here otherwise you will suffer in the summer. Where are you located and tell us more about your truck.
The reason on the OBS turbo has the 1.15 turbine housing is to try to keep the exhaust temp below 1250° pre turbo because of the lack of an intercooler. The OBS 7.3 Powerstroke actually was rated for less horsepower than a 7.3 idi with a Banks sidewinder turbo or one that had a Hypermax Pulse turbo and intercooler system on it. With a Banks Sidewinder on 7.3 idi it was rated at 262 flywheel horsepower and a 7.3 idi with a Hypermax Pulse turbo and intercooler were rated at 260 flywheel horsepower.
Great comparison ! I have lots of 7.3 PS (97'/2002) and 7.3 IDI 's (1990/1992) here. I am simply a "driver" at this point. Will be playing with some of them in the future. ...in the mean time my daily drivers are MANY 300 sixes carburated in 150/250/broncos in Bullnose style. Moving to bullnose and OBS style exclusively
I got beginners luck when i got my OBS 7.3 last month. Believe it or not i almost didn’t buy it because it had 284k miles and I thought that was alot. It was so clean i bought it anyway and boy was i happy to read all these good things about it afterward. My first ever diesel truck and i still get excited to drive it. Only thing ive added is a train horn, rest is bone stock. I love these trucks. So pretty.
One thing that you are not correct on is the PMR. The PMR was only run half year in 01. My 01 doesn't have the PMR. The main issues with the 7.3 in the late years was actually the wrist pins snapping. Turbos from the OBS were smaller than the NBS. Also, the split shots were supposed to be better for fuel economy, but but because of the primary and secondary shots, it actually killed the economy vs. the single shot injectors. My current build has a GTP38R turbo Banks intercooler Banks turbo back exhaust Swamps HVHF IDM 30% over injectors CAI Custom PHP tunes And stage 1 trans.
It sounds like you've got one heck of a build going on, I'm sure your 7.3 is fun to drive! I assume its a Super Duty with the GTP38R? I'd heard that the 7.3 got the PMRs past 2001, that somewhere down the road they found some sitting on the shelf and stuck them back in some late model 7.3's. Where did you hear about that? Also I thought the split shot was strictly for emissions, primarily noise emissions? Certainly International Engineers would've actually tested the fuel economy theory before making a run of over a million 7.3's with split shots, "hoping" to get better fuel economy. Not that I'm trying to pick or anything, I'm asking a legitimate questions. If I said something wrong, I'd like to learn so I can be correct. Besides, finding another source to learn about 7.3's is cool too. I'm too young to recall the history in person... By the way, how's your transmission holding up?
Rnddiesel Brother it's all good. I actually picked up a good bit while i worked with international, and the rest i got from people who made these trucks run "better" ( per say) like Vinny, owner of LFDP here in Ga. The trans had to be replaced, stage 1 sits in her now, i am in fact running a GTP38R turbo and quite a few other goodies as well. I have been thinking about going to code B injectors, stage 2 cam and GT42 turbo . The 7.3 can take a lot of punishment, more than people give it credit for.
Rnddiesel Stock 4R100 could not take it at all..lol International actually got the injectors from CAT. On some cat engines you can actually swap injectors, same as the older DT466 from international.
Wow, how cool that you worked with International! Pretty much everything I've learned comes from obsessively searching for endless hours on google and reading everything I can on the 7.3. I'm sure that GTP38R is pretty nice, how's the spool up time on that turbo? Yeah it seems like the weak spot for 7.3's is the darn transmission. Diesels just produce the power at a lower RPM which ultimately sends more torque through the transmission. Heck a gasser spinning twice the RPM of a diesel can basically transmit the same horsepower with half the torque of the diesel. Knock on wood my e4od is holding together for now... So do you drag race your 7.3 or is it just your fun DD?
Hey man idk if you'll see this but I'm getting my 99 7.3 soon and I learned a lot from this video and I just wanna say thank you because there's not very many people that do this kind of stuff, nice truck man love the video
That's quite the compliment, thank you! I'm definitely glad to help! You know there's many subtle differences between each truck that make them what they are, though 99 year model trucks are also quite unique. I didn't have really much time in the video to cover the 99 year model truck too. They tend to be a goofy model year that's more of a hybrid between the OBS and Super Duty that you may want to look into. Depending on whether you have an 'early' 99 or a 'late' 99 there can be a pretty large difference. You can verify this by your serial number and the build date, though I don't know the cutoff serial number off the top of my head. Early 99 7.3's for instance still had the smaller 2 inch intake plenums like the OBS. Also early 99's had smaller 130 cc injectors vs late model SD's 140cc, and there's more differences of course. I found a link to a forum I've done lots of reading on, and it gives a brief list of the differences in early 99 year model trucks. www.powerstroke.org/forum/early-99-discussion/32647-differences-between-early99-late99-03-trucks.html Welcome to the 7.3 world my friend!
Rnddiesel thank you so much for taking out the time to help me out man I think your a really good person just for that so thank you and I'm deffenently going to do my research thanks again!!!!
I wish I had a quad cab OBS. It I got extended cab long bed haha. Far from perfect but, got some exhaust work done and super duty valve cover harness haha.
Missing your AC clutch plate bud! Mine thru the screw loose one day and I got lucky, found the plate and the screw sitting on the radiator support. Mine was from power down shifting the stick shift i think n spun loose the reverse thread holding screw. P.s the best color was infact the Taurmaline green! Beautiful color. Mines is the same truck minus king cab, XLT package , 5 speed of course. 285k never not taken me home at end of the day BTW.
Yeah, I fixed that by replacing the ac compressor, that one didn't work anyway. Funny thing, I actually pulled the ac compressor since it didn't work, I was planning to disassemble it and see if I could just un-seize it, but I broke the bolt that held on the clutch plate in the process. I don't know why I put the clutch plate back on there, but it came off when I was going down the road one time and gave me a nice reverse dent in the hood! I'm glad to hear you've had good luck with your truck as well, Dark Taurmaline is indeed a good color too. I've got 374k on mine now and it's still going strong!
@@Rnddiesel Actually had a guy try hard just yesterday at home depot to buy mine when I parked. Folks love em. They will probably bury me in mine when the day comes. Thanks for making videos! Plenty of nice old trucks in Oregon coast area from what I have seen. The loggers loved em. Very few in Florida. I see maybe one a week driving like mine in various conditions and everyone knows my truck around here in east orlando.
@@jim28fl That's awesome, your's must be in better shape than mine! It really depends on what part of the country you're in I guess. I try to make videos when I can, know its been a while since I mad any; I'm glad to hear folks like you appreciate them none the less!
I have a 92 single cab 7.3 idi with the banks sidewinder i love my obs i will never get rid of it i plane on marking it a show truck eventually but for now it's a work horse
If I had noticed this was over 20 minutes - I prob. wouldn't have watched. But having said that, this may be the best vid. I've watched on RUclips. Full disclosure - I own a 96 PS F250 CCSB.
Yeah looking back, it is a bit hard to watch, I've since watched it again, and man you have to take a break halfway through! Rock on with the OBS truck!
Great video! Enjoyed this a lot! Too bad you live in Texas, cause I would absolutely volunteer my 2001 F-250 for comparison. Cause I have the crew cab as well AND mine is 4 wheel drive too. The comfort of the ride in the Super Duty is definitely the two wheel drive/stock tire variant, cause I have the 4x4 with a bit meatier tires and driving it beats the s**t out of me from how rough it is 😂 As far as my opinion on the 7.3: She's not the fastest or the strongest girl at the dance, and she's loud as hell. But treat her right and she'll outlive you! As long as you carry a spare CPS in the glove box and some oil (just in case) you'll never be left stranded by the 7.3. Plus it's relatively easy to work on! Love the sounds it makes and no goofy emission system making the engine ingest it's own waste. One thing the trucks in this video have in common: the engine is in bad need of a hose down! Don't be shy! Just cover and/or avoid the alternator, batteries, and fuse box and go to town!
That 1st startup of both sounds nice. I've noticed every time 2 7.3s are idling next to each other they sean to synchronize sound. Especially if one is a mechanical fuel pump.
I've had all the Ford trucks. The later 7.3's blow the early nineties out of the water. Sweet spot was 99.5- 02.5, when they weakened the engines by dropping the forged rods. I like not having to deal with the Def and all that crap too. It does everything I want.
Great comparison video! I sparked a few questions for me: 1. Can I swap stock SD injectors into my OBS to make it more quiet and increase HP? 2. What makes your '97 make more HP than earlier OBS 7.3's? (Also, is the 96 the same as the 97? I have heard those two years were the same). Thanks for all the good videos you make! Well informed and interesting!
You can swap SD injectors into an OBS since the engines are internally the same (with some small changes, but still generally interchangeable parts), but you would need to have the truck tuned to run properly. Since Super Duty engines run split shot injectors to quiet them down, the injector dumps a smaller pilot amount of diesel into the chamber to get combustion started, then the rest of the fuel charge is injected giving the engine a quieter knock. I'm pretty sure you'd want to advance the timing so the fuel injectors are triggered earlier so that you can still get optimized performance. Most folks go the other way around and put OBS injectors in a SD since the single shot can dump more fuel into the combustion chamber in a shorter amount of time compared to the SD unit with the split shot, so I'd imagine tuning would be a bit of a challenge, but probably not impossible to find. Scratch that... I just remembered California model OBS trucks had split shot injectors! I'm sure you can find some tuning then for a California truck, grab a California ECM, but probably it's best to find some tunes specific to what you're wanting to do with the Injector combination you're proposing. On your second question I'm not so sure why the horsepower was stepped up. Such a small amount of 10 hp isn't huge. I'd imagine it's just different engine tuning that makes the difference. As far as I know the injectors and turbocharger are both the same. Their might be some subtle differences as well, but I'd bet it's more aggressive factory tuning more than anything. I will say now my 97 makes more hp than a stock 96 because my 97 has bigger injectors, a bigger exhaust, intercooler installed, and some aftermarket tuning which makes it a real fun truck to drive :-)
Had a 92 F350 longbed crewcab 4x4 and a 95 F350 crewcab dually. I’ve been driving my 01 F350 crewcab longbed dually 4x4 ever since I bought it new in 2001.
Need a truck to daily drive as well as haul some cars around. In terms of age, is buying a obs 7.3 more expensive to keep well maintained? During your ownership how has your truck been maintenance wise? Love your truck!
Kevin Jose yeah I really love my truck too, it's a great one! Okay, 7.3's are starting to get up there in age and accumulate a lot of miles, like mine with 357k miles now. My injectors are a bit worn, it still needs suspension work, and I'm currently fixing the AC... parts do get pricey on the engine though. Injectors are $1200 for stock units if you do the work yourself, and the aftermarket sensors are not that great, so you usually have to go to the Ford dealer for parts. Really though only 3 actually go out, the ICP sensor, $250 at dealer, cam position sensor ~$30 at dealer, and IPR $250 at the dealer. That being said, they don't go out often, and other than the cam position sensor, odds are you'll get years of life out of them. Oil is expensive. It literally takes 3.5 gallons of the good oil Rotella t4 is what I use, and filters are around $20 too unless you shop around. So oil changes are around $65 every 5k miles. Coming from a gasser Chevy, nothing about the 7.3 is cheaper. It's just awesome! 7.3's as daily drivers are slower than molasses, like you need to be careful when taking left turns, because it takes the turbo so long to spool. I daily mine, and it's good, just challenging to park at times. You know there's a lot more to talk about I'm not really giving the 7.3 justice here. If you give me some time perhaps I can make a video and put it up on the channel.
Rnddiesel that would be great! Like a potential buyers guide / typical maintenance items on the 7.3. Thanks for the response, take your time if you are making a video. I want to make sure I make the right decision buying a truck like this.
Kevin Jose alright! I'll take a look and see about considering what all there is involved in choosing a 7.3. What other truck options are you considering?
Rnddiesel 7.3 and the 24v cummins. 7.3 means a lot more to me as my dad bought a new Ford Expedition back in 2000 and the sales person tried so hard to get my dad to pick up a 7.3 excursion instead. I’m a huge car enthusiast and love working on anything really. Just need a dependable rig to use on a daily basis. I’ve seen some trucks with around 100-150k miles asking 20-24k. Not sure if that’s overpriced or not.
Yeah, 20-24k sounds a bit high. Both are legendary engines and it's not the easiest to find a diesel with under 200k miles on it. You pay a lot more for a low mileage rig over one that just needs a little work. Heck I picked up my truck for $4500 a year ago, and I've spent another $4500 on it thus far, but I've redone all the brakes, shocks, fixed the air conditioner, replaced a few sensors, serviced pretty much every fluid in the truck, replaced the radiator, and have even upgraded a few things along the way too!
Love my 97 ext. cab long bed 7.3!!! It was my papaws and it had 400k on it when he passed. I got it pulled the og motor rebuilt it for a backup. I put a 1999 7.3 motor and computer in it due to it making more power. Yes it has the forged rods.
Thanks! You know funny thing, my truck sits stock height. No lift, level or anything. OBS trucks weren't exactly built for aerodynamics, so that front axle really shows itself off! I'm running 33 inch tires on mine, not sure on the exact size, stock rim and everything though as far as I can tell. They were on the truck when I bought it, so I haven't really looked much into that. The tires are just a little bigger and wider than stock though.
The stock tire size on an Obs SRW is 235/85R16 have to order them basically. Nearest tire size that won't affect the odometer is 265/75R16. I went stock tires on mine.
You have to consider though in that 0-60 comparison is that the F-250 Super Duty is still a smaller truck compared to the F-350, so the test would be more accurate with an F-350 Super Duty with the crew cab and the long bed. Still, they run forever, and I will always love that OBS style with the push button door handles and the classic square body shape.
I’m 16 and I drive a 95 7.3 and I’ve redone the whole interior/ better seats, & better carpet. But I have to disagree with you on the toughness of the obs to the superduty. In my opinion the obs is much tougher on the body and the motor. The obs 7.3 is completely different than the superduty, the 7.3s after 98 had a weaker bottom end like you said, the ICM on the superduty is 24v but the ICM on the obs is 12v. I love my obs 7.3 and I wouldnt trade it for the world. On the manual fuel pump it was converted to an electric fuel pump so I just turn on the key and let it prime for about 10-20 min with the glow plug relay disconnected so you don’t fry the valve cover wiring harness don’t ask me why I know that. And most of the time here is Texas I wired in a glow plug off switch because I never need them 95% of the time. But I can tell that my trucks previous owner took very good care of it.
That's awesome, I'm definitely jealous, my first car at 16 was a 92' Buick... It sounds like you're taking care of the old truck, glad to hear it and have fun with the rig!
Wow, that's a low mileage 7.3! The engine does have some faults, but it is still a legend, and all things considered, cheap to work on. I don't know if I'd say the truck is garbage. Maybe after so many years stuff just gets old and the plastic interiors get rattly. I've had to to a bit of restoration work gluing my interior back together, so... it just takes some work. I think the Ford body is probably the more robust of the big three, especially back in the day. Dodge dashes, look at em hard and they fall apart! Chevrolet is good as well, but they aren't as heavy duty, and the dashes on those like to crack as well. Drove me crazy on my 97 Chevy. Ford Dashes seem to just hold together!
Right, that's a shame about the rust. I'm southern born and raised, so I don't even think about rust. Trucks down here hold up just fine, probably not as good as in California but still they hold up fairly well.
Intercooler is NOT for emissions. How many intercooler deletes do you see for sale on the internet? Intercooler is for horse power only. I will not explain here. Look up the Gale Banks RUclips video on the subject. Rant over. Thanks for the video. I test drove a 1998 Ford F250 at a dealership. It was on a "new" F150 cab with heavy duty suspension, but it said F250 on the badge. I never saw that model again. It may have been Ford's intermediate version. FYI To check for powder connecting rods there is a video on it. There is a block window plug you can pull off and look directly at them.
Thanks for the input! I had no idea there was a window in the block to check for powdered metal rods. If you can find them, would you post links to the videos you're referring to? Banks has so many videos out there its hard to know which one you're referring to. Gale Banks does know what he's talking about, that guy went and became an engineer so he could understand more about the performance parts he was adding and to design them, it's a pretty cool story! It sounds like you found an odd ball f250. 1998 was a weird year for ford trucks for sure. Did the round body f250 have a powerstroke in it? I've only seen one of those trucks once and I thought it was a joke at first, that someone had just put f250 badges on an f150. Regarding the intercooler: They weren't put on strictly for emissions, though that is a good motivation for auto makers to utilize intercoolers. Here's a link to a study on intercooling, turbocharging, and power output: www.researchgate.net/publication/319979741_THE_EFFECT_OF_TURBOCHARGER_PRESSURE_AND_INTERCOOLER_TEMPERATURE_ON_ENGINE_PERFORMANCE The study appears to be mostly based on theoretical calculations, though from my experience those theoretical equations are fairly accurate. I've worked with similar models myself as an mechanical engineer. See figure 12, it indicates that as you decrease the intake air temperature (via intecooling) the thermal efficiency of the engine is increased. Efficiency may not seem to be increased by much, but gaining around 2% thermal efficiency is a huge accomplishment! This allows the engine to burn less fuel and in turn produce less emissions, especially carbon emissions if you're talking about increasing thermal efficiency. Certainly intercooling also allows you to increase the power output of an engine and lower exhaust gas temperatures, that's definitely a good reason to intercool and one of the reasons I added one to my OBS truck. Another factor is that by increasing the air charge density via intercooling, you can increase the air taken into the engine per revolution. Yes this increases power output, but it also lowers emissions, Nitrous Oxide emission (NOx) in particular. Essentially the greater mass of air ingested causes a lower peak cylinder temperature (hence lowers egts) which reduced NOx formation. NOx is generally formed as a result of higher peak combustion temperatures. Really, I don't think most folks care about emissions as much as auto makers and the government. If you 'deleted' an intercooler simply because it lowered emissions, you'd be an idiot as it helps increase power, increase efficiency, lowers egt, and the cons to an intercooler are far less than those aforementioned pros. Look, if modern particulate filters actually increased power and fuel economy, (which they do neither) there would be far less aftermarket motivation to delete them! In the end, intercoolers are utilized to lower emissions, particularly NOx emissions at high engine load, but they also allow for increased power output! In engineering you rarely get parts that both increase power and lower emissions, especially these days when emissions regulations are so strict. Even if you factor out emissions regulations, I think auto makers would still intercool vehicles to increase power output, but they also consequently reduce emissions slightly. I've gathered much of this reasoning from a good friend of mine who spend a good part of 20 years working as a noise and vibration engineer for Cummins. By the way Merry Christmas!
@@Rnddiesel ruclips.net/video/hbsnzC3nXOU/видео.html At the end of the video Gale sums up his findings. Back to your question on the non Super Duty "new body style" F 250. I was at a Ford dealership 1998 looking to by a new truck. The 1998 F250 I test drove had the triton V8. It also had a stiff ride compared to a '99 F150 I just drove. They both looked identical except for the bagdes. I told the Ford salesman to sell me the F150. The salesman did not bring up a Diesel version of the F250 and I did not ask. I should have because it would have made for a better story today. Lol.
@John Campos Good idea adding intercooler. With the intercooler, you are now increasing the air density entering the combustion chamber. Black smoke coming out the exhaust is fuel which has not combusted. If you see black smoke come out of a diesel it is running rich. Looks cool but it is just wasting fuel.
I'm sure the 6.0 is way quicker! Heck the first diesel that wasn't a tractor was my Dad's 2013 LML Duramax, that thing is powerful. I used to think all diesels were that way, until I drove a stock 7.3 haha. It's all in that VGT turbo, too bad the 6.0 had a flawed head clamping design from the factory. By the way, how has the 6.0 been from a reliability standpoint?
Rnddiesel it's really hit or miss with 6.0s man, 2003-2004 is a gamble. 2005+ is the way you wanna go. And still if you dont conduct proper maintenance then they aren't 100% either. If you leave them stock then they will be fine. It's when you start tuning them the heads fail. I've had mine a year and it's been great. I'm deleting it and studying it though this week as I want to tune it and just as a safety precaution. The VGT vainsstuck on mine....that's really the only problems I've had from it!
Kody Kill haha, good one! I guess that makes sense for a 6.0 to really get into trouble with tubes. Heck 500hp is basically just a tune away with a 6.0 from what I've heard. The 6.0 is definitely a unique animal, thanks for the info!
Yeah that is a nice thing about the idi's! I've heard the only issue would be with the fuel return lines. Supposedly biodiesel deteriorates the standard hoses that aren't specifically designed for the biodiesel. I'm sure the Bank's turbo really helps the truck out a lot too!
at 4:57 it looks as if the OBS is running later model coolant? It doesn't seem to be green? At first I thought it might have been the lighting, but the S Duty shows green. ?????
I guess it does look a bit different. I'm running a Fleet Charge brand coolant that is already pre-treated with SCA's (Supplemental Coolant Additives) to prevent cavitation in the OBS. For whatever reason the company that makes it likes to dye it purple. The Super Duty owner is a friend of mine; he's just running regular green antifreeze, but the guy doesn't have any SCA's in the coolant! I might inadvertently drop a couple bottles of SCA in his radiator one of these days and help keep a goo 7.3 from getting a hole in the block...
Nice I bought a '95 f350 7.3 Crew Cab Long Bed for $4500. I love everything except for parking it, oh and expensive repairs. Mine needs some work and love(which I've been doing steps at a time) because she sat for a couple years. She has a misfire but I think I've narrowed it down to an injector. I have the stupid little bronco mirrors like yours, which I hate gonna swap them soon. I don't daily drive her though. I have my '04 Grand Marquis for that because I can't afford to when it's $3.45/gallon here in Salt Lake. P.S. I love the color of the Obs truck there. Mines Reef Blue Metallic, which I polished and waxed and she's a beauty now.
Nice! I paid the same for mine. Yeah parking it is a pain, but I figure it's a good problem up have, hopefully it means you'll have more truck than you'll ever need. I'm sure your truck looks good, deep blue OBS trucks are gorgeous. By the way I got rid of the plastic cover. Intercooler tubes got in the way...
I don't know, I think the cover looks kind of cool. Its a cover that actually has a panel on it so you can service the fuel filter. It'd be neat to remake the plastic cover to work with the intercooler though. I've still got mine too.
Nice! That's pretty quick for a 7.3. I ought to time mine again, she's got a few upgrades since I made the video... How's the 1.0 ar housing working out for you? Are EGT's still manageable?
How many miles per gallon are you getting? Towing & unloaded? I'd start by making sure the truck is running smoothly, any check engine lights? The truck should be pretty peppy when warmed up and decently responsive. How old are the fuel injectors? Injectors can wear out on 7.3's too, and while they may not make white smoke, they will cause a pretty bad sluggishness to the truck. I had a set of injectors with ~150k miles on them and the truck was definitely sluggish. Replaced with rebuild injectors and it made a huge difference!
I want a 7.3, came from a 6.0 want something different, but I wanna make it quick for a truck (not a drag truck) but I also want the ability to work on it myself. What’s the better one for towing and going quicker (with mods ofcourse)
FBI, I'd say the super duty is better to make quick hands down. They're already intercooled, transmissions are stronger and they already have bigger injectors and a decently sized HPOP. The only downside is the SD is a little heavier and more cramped to work on, but it's not that bad. Some things on the OBS are hard to work on too, especially with exhaust downpipes... Also SD has a quicker spooling turbo which is much better for daily driving. The only thing is some SD trucks have powered metal connecting rods, but that doesn't matter unless you go past 400 rear wheel horsepower.
I have question for everyone here..it looks like there is a niche market for these 7.3 trucks.. do you think they will have value or go up in value say 10 years from now?
the body style of a super duty is in fact MUCH MUCH taller then an OBS, the are about the same width, but a superduty has a much taller cab and bed inside and out, by atleast 8-10 inches taller cab, can you measure them since you have them side by side?
it would be extremely appreciated if you could measure them in and out, curiosity has been killing me for a while lol, to measure the exterior just barely open the front door and measure the bottom to top, since they are both 4 doors which is perfect, i would like to know how tall the cab is measured from the center, to the roof, total cab height has to be really close to 50 inches according to my internet experience lol, let me know man, and if you havent understood what i meant by "center of the cab" this is what i meant snag.gy/oWOgDw.jpg
@@TheGamingChad. i grew up in a 03 super duty im in an obs 7.3 know and i know beyond a shadow of a doubt you are correct im 6,4 and if i sit up i will hit my head in the obs and he says the room in the obs is more nope not true obs is a much smaller truck in all directions
Never understood the decision by Ford to remove the head restraints from the rear seat of early Super Duty crew cabs (came back in for 2004 or 5 MY, I think), so in that instance your OBS would be safer for rear seat passengers...
Love my dad's 95 OBS dually with 4.11 rear gear, even with the small electronic issues that are starting to crop up ad 150,000 miles but I would like a 7.3L Powerstroke superduty, or maybe even a 6.0L knowing what I know now about them. Didn't know the super duty trucks had a trans temp gauge that far back. I figured that was something that started to be added about a few years ago... Also word of advice for anyone with the OBS Powerstroke: that mechanical fuel pump is a bitch to replace. And also about the fuel pump on the OBS is from what I've read on the web fuel pump on the OBS makes around 45 pounds of pressure but the injectors need 65 or so pounds of fuel pressure to perform at their max. Not sure if it's true or not but something to think about.
Do it! A zf5 will last way longer with less maintenance. The E4od in my 7.3 was rebuilt 8 years ago and it's already showing signs of wear such as it has a hard time deciding what gear it wants under throttle. Pisses me off Everytime I need to get going especially while towing trailers. At least in a manual you can choose your gears makes it to where my other 91 460 zf5 can out pull my 97 e4od 7.3 kinda sad when you think about the fact a truck 6 years older and being a gas can out pull and perform the diesel
Obs is better in my opinion I’m looking for one now lol I’m 16 and about to have my 2nd truck lol I’ve been loving the obs 7.3 soo much I just wanted a diesel and a truck because right know I have a 1992 ford bronco
Just like the old C10's F100 and Ford highboys, someday people are gonna want these real bad to restore and dump as much in a new car to restore those OBS trucks.
If you run through the typical checks for blowby, it shifts fine, starts cold, and feels like it makes good power, then I'd go for it. If you find any starting fluid near the truck, I may be a bit leery, and would definitely ask if it was used. Starting fluid can be very bad for the engine. My truck just rolled over 400k miles and runs great. It leaks some oil, but with fresh injectors it makes plenty of power. Are you willing to do some work on the truck like replace glow plugs, or are you looking at it to be a good to go oil change only truck?
@@1_2_Many_Projects Then I'd definitely go for it. As long as the engine bottom end is all good, and the transmission is good, you can replace injectors and whatnot if needed. Even with worn out parts they'll just work. These Powerstrokes are legends for a reason. I'd definitely keep a spare camshaft position sensor on hand though. That's one thing that'll for sure stop a 7.3 in its tracks.
25BEDFORD I've lived in Texas my whole life! Had a fit this past winter with cold starts. Worn injectors and bad glow plugs, I couldn't get it to start below 50 degrees, so I had to use the block heater. Heck I think I was the first person to use the heater too, the 97 has pretty much always been a Texas truck too.
94 7.3 IDI turbo Diesel, thanks for all the info! I really didn't know only 02 and 03 models had the trans temp gauge. It is really neat that those came factory. I just realized that my friends SD had the temp gauge about a week before I shot the video. By the way, nice IDI, those things are cool.
That's sure a real shame, too bad Ford didn't put an actual gauge there. Go figure it doesn't have any numbers anyway! I've got a real trans temp gauge on the OBS now, so that part is good to go now.
Kid just said it at 15:38 . The OBS is best for pulling. It all comes down to gearing and a 4.10 ratio will pull your house off it's foundation. My 91 460 zf5 has the same gearing and it out pulls my other 97 7.3 auto plus in the long run the OBS will be worth way more of kept up just because of the body style
It's hard to say. The SD in the video is 2x4, my OBS is a 4x4 and 1 ton rather than a 3/4 ton. The OBS definitely gives a rough ride, though I think pretty much any 1 ton truck will do that. The SD was a little softer, though that was probably from it only being a 3/4 ton. It wasn't a huge world of difference, but definitely a little softer.
in my opinion the OBS is better I just like that boxy style of truck..good ole days on the farm
Heck yeah! They've got the aerodynamics of a brick, but golly look so good doing down the road.
oh i wouldn't care about aerodynamics. Ha I always tell my friends that want to buy a truck don't do it for fuel economy because they will cry lol
Absolutely, you don't buy a truck for fuel economy, you buy a truck because it has capability!
couldn't have said it better myself
Rnddiesel my pops duramax gets the same mpg as a Honda Accord in eco mode lol
Aesthetically, I’m always gonna go for the OBS. Just is all around tough looking and the nostalgia of the “smokers window” and the push button door handles. An F350 crew cab long bed 7.3 with 4x4 is the Holy Grail of trucks IMO.
Heck yeah, I'll second that!
Club cab, short box.....
Definitely agree! And if there’s a 5 speed behind it, there’s no truck of wrather have.
@@ChevyManZ put a 6 speed ZF6. Crew Cab Long Bed 4x4 7.3l Powerstroke.
Chevy for life but I have to agree with you
Just picked up a project for my channel 2001 7.3 6 speed dually 4x4 135k Miles for $5700 so excited!!! Catching up on some RUclips 7.3 materials before tackling the big girl!!
That's awesome, a 6 speed 7.3, so cool! It sounds like you got a steal of a deal with such low miles. A good place to look online for more info would be the forums like powerstroke.org or fordtrucks.com I believe. Heck if you have any questions I know a thing or two as well. FYI, familiarize yourself with the cam position sensor, ICP sensor, and IPR. Just knowing what they do will help save you a bunch of headaches. Those are the most troublesome part of the 7.3, especially the cam position sensor. Have fun!
It runs good? That’s a great price these days
That's insane for the trucks these days
Something has to be wrong for that truck to be 5700. Has to be
I have owned a lot of Fords. The obs is by far my favorite. The power lacks by far in the old 7.3s compared to my 2002 7.3. I still prefer the old ones. I know I am going to get a lot of negative comments from this comment, But I love the sound of a 90s 7.3 over any 12 valve Cummins. The old 7.3s just sound good. I was diesel before diesel was cool.
We're mostly 7.3/ Ford guys here, so I don't think you'll have to worry about negative feedback! You say the OBS lacks in power relative to the SD, and that is true in stock form, but believe me, after a set of 160cc/00% injectors and an Intercooler, my OBS will beat the socks off a stock SD without even trying. Unless you're talking about the 7.3 idi, which is also an awesome engine, but it is definitely down on power comparable to the SD 7.3. There is one other thing those 12 valve guys are really missing out on though, besides having the cooler sounding engine... Electronic engine control. With that we can burn fuel so much cleaner and add performance a little easier at first too with just a tune. There's no school like old school, keep dieseling!
@@Rnddiesel Yes stock that is. The 02 7.3s I should say way quicker. I had a 99 And when I got the 02 it was a significant difference in takeoff. I like the old idi 7.3s. Simple engine. The idi is getting harder to find these days.
@@steiger256 I'll second that on the IDI's. When I was looking for one a couple years ago there were way more than I see now. It's like the supply just dried up. I'm betting more than anything they're just sitting in a field somewhere rusting away, their owners probably don't even know what they've got. At least we've got our 7.3's!
OBS have that distinctive cackle that I like. My understanding is later model 7.3L Powerstrokes have a special Long Lead injector for number 8 cylinder to help cut down on that cackle but I'm not 100% sure on that.
@@steiger256 love my old very very rusty 93 idi manual 4x4.Also have a 2000 4x4 manual powerstroke. very sharp looking it was garage kept until I bought it 2.5 yrs ago. Like you I prefere my old obs idi.Turns out it has been a special order.Vinal bench seat and floor. It had a head liner, doors with the map pockets and liner. Little coffee cup and change holder attached to the fron of the seat. Had a headliner , ac and cassette /am,fm radio. Finally it had the 4x4 shift on the floor with auto hubs. To me it was/is the perfect truck. New one has carpet and cloth seats?? why?? even with the big mirrors I have blind spots all around. idi ha small mirrors and never a problem.
I live in Australia and I had a RHD 2005 f250 7.3 but it was equivilant to your 2002, I now have a RHD obs with a 1998 build plate and I have to say I love the OBS more. I have done the e fuel conversion, dump pipe, fuel tank sumps so I feed e fuel pump with 2 tanks.... And the thing is just great fun.... And the old obs engine noise is great...
Anyway loved your video....
It's only a
The new school lost me at 2wd 10 seconds in ✌
I've got the identical color 97 OBS 7.3 single cab 5 spd manual. I love it.
Take a shot every time he says "things of that sort."
I was thinking the same thing👌
Ok!
You’d be fucked up in 2 minutes
Don't know how old you but as a 24yr guy that grew up building racing mowers mustangs and diesel truck it's nice to see another young guy driving a truck an actually know what he has. Mines a L99 and I've got 355k and never had one of the sticks pulled. The 7.3 is the Cadillac of the million mil diesel engines. Slower than a 6.0 and not as fuel efficient as the 6.7 but it will out last them. Love my 6.0 if im Running late though😉
That's awesome, It sounds like you've been in the field of making engines run fast for a long time, I'm sure you know more about it than I do, and I'm sure it must be fun too! I'm only 21 years old for the time being, so I don't have a whole lot of cash on hand to make my truck not so slow. 7.3's sure do last a long while, you've got that one right. Heck I guess they really don't make enough power to hurt themselves. I'm sure that 6.0 is quick! I hope to maybe get me one of those one day, get my hands dirty with it and have some more experience working on a slightly newer model. It also would be cool to experiment and see what else can be done to the 6.0 to make it more reliable in the long term, and heck, of course make the old 7.3 faster too!
With 355k miles, do you think you'll replace injectors anytime soon? I've got the same mileage on mine, and surely it couldn't hurt to have new sticks?
Rnddiesel Oh Lord! I see I shouldn't comment when it's late lol. I've just been doing upgrades for fuel and longevity: 1.15 van turbo w/ats housing, a cnc fab pump and a few other fuel mods. Hybrid Injectors are next. I'm not looking to make a rocket ship out of it. But, a hydra tune, sticks and maintaining my maturity in her is the plan... "plan". I've done a the 05+ axle swap and dash swap. Axle upgrade by far was my favorite. Your video is very knowledgeable, un biased and accurate. My 6.0 truck is a monster but it's injectors won't still be around at 300+.
Haha, no I just get up that early, I like the morning, get to have coffee. It sounds like you've got quite a bit of mods done to your truck, heck it probably looks like a new truck with the dash swap! With hybrid injectors you can really pump out a lot of power with a single HPOP. My main goal is to get my truck to run like my Dad's 2013 LML Duramax, 397 hp and 765 ft*lbs with a VGT turbo like the 6.0, that thing takes off like a jackrabbit! Only hopefully the 7.3 will be much cheaper.
Doctor. Phil K What is the "dash swap"?
Great vid man, love your passion for these trucks, also very informative. BTW love the smile when you get back in your OBS and let her bark👍👍✌️
Thank you! Yeah I really do enjoy working with the old 7.3, it has and continues to teach me new skills. I don't know about you, but if I had to buy another truck again, I'd still buy the same thing!
Grew up around a red 97 f350. Lifted a hair. Learned to drive in it! It was a 4 door long bed. Sadly it rusted out but it was a great truck, really miss it
That's awesome! They are good old trucks, I couldn't be happier with my 97.
Love my 95 7.3 one ton single cab 4x4 dually! 175k & still going strong! I just put 9k into the truck & now its ready for paint!
I am looking at pretty much the same truck you have but it needs lots of work to be done to it. But I am trying to restore it hopefully
Nice comparison, man! Great job! You seemed very fair throughout the whole thing. Thanks for making it and hope to see more.
Thank you, I appreciate it! I certainly didn't cover every little detail of course, but it at least gives folks a place to start. Of course I'm still working on new videos.
Since I've got you here and if you don't mind me asking. What sort of videos do you hope to see more of?
My boss had a 97 heavy duty and I loved it. I thought it was a late 80’s early 90’s because of the vent window. Boy was I surprised when I finally read the door sticker and found out it was a 97. Just picked up my 97 F250HD 7.3 and it’s exactly what I wanted. A truck that just works
This video is making me want to buy an OBS. I'm not selling my '01 superduty, never, but I do have this feeling that if I had both, I'd drive the OBS more. Either way, I love these trucks. I've had mine for almost 2 years now and it hasn't done me wrong as a daily driver. Maybe one day I'll clean it and make it presentable and make a video or something.
i was looking for a comparison video just like this thanks. subscribed
I owned a 97 7.3 obs, currently have a 2000 7.3 both are great trucks and the engine will run forever.
Kevin Huber, I'll second that one! You know a lot of folks brag about their Cummins, but I still bleed IH red. International sure knows how to make engines, and the injection technology for the time of the 7.3 was way more advanced than the all mechanical 5.9 Cummins. Yet the 7.3 still runs like a workhorse even with electronics. Gotta love 7.3's!
I have a 2000 F350 4X4, 4R100 automatic transmission, crew cab, long bed, single rear wheel, with about 190,000 miles on it. Everything is stock original. I bought it used in 2009 for $15,000. I did have to replace the cam position sensor not long after I purchased it. The truck was missing that overdrive button when I bought it, still don't have one for it. Power lock motors don't work but found out that is a common problem that can be fixed by taking them out and drilling out the rivets and then use aluminum foil as a replacement for the contactors. I have not performed that fix yet, I'm being lazy and just manually lock them. I run Rotella T6 full synthetic for the oil. Changed out the rear differential fluid a couple years ago with Amsoil fluid. I did have the problem with the air conditioner cycling on/off but I read about cleaning and possibly shimming the AC clutch thing up in the engine compartment, that fixed that but I have another AC problem that is called the blend door. Have you had these problems? I live in Round Rock, Texas and we need AC here otherwise you will suffer in the summer. Where are you located and tell us more about your truck.
The reason on the OBS turbo has the 1.15 turbine housing is to try to keep the exhaust temp below 1250° pre turbo because of the lack of an intercooler. The OBS 7.3 Powerstroke actually was rated for less horsepower than a 7.3 idi with a Banks sidewinder turbo or one that had a Hypermax Pulse turbo and intercooler system on it. With a Banks Sidewinder on 7.3 idi it was rated at 262 flywheel horsepower and a 7.3 idi with a Hypermax Pulse turbo and intercooler were rated at 260 flywheel horsepower.
Great comparison ! I have lots of 7.3 PS (97'/2002) and 7.3 IDI 's (1990/1992) here. I am simply a "driver" at this point. Will be playing with some of them in the future. ...in the mean time my daily drivers are MANY 300 sixes carburated in 150/250/broncos in Bullnose style. Moving to bullnose and OBS style exclusively
That's so cool! I'd like to get one of those inline 6's eventually. There's definitely something about it that's just plain sweet.
I got beginners luck when i got my OBS 7.3 last month. Believe it or not i almost didn’t buy it because it had 284k miles and I thought that was alot. It was so clean i bought it anyway and boy was i happy to read all these good things about it afterward. My first ever diesel truck and i still get excited to drive it. Only thing ive added is a train horn, rest is bone stock. I love these trucks. So pretty.
Loving the obs i have the single cab version of your truck
1980 was the first year of an OBS. OBS year ranges from 1980 to 1996 f150 and 1997 f250 and up heavy duty.
"you can find an obs a little bit cheaper than a super duty" that didn't age well
One thing that you are not correct on is the PMR. The PMR was only run half year in 01. My 01 doesn't have the PMR. The main issues with the 7.3 in the late years was actually the wrist pins snapping.
Turbos from the OBS were smaller than the NBS. Also, the split shots were supposed to be better for fuel economy, but but because of the primary and secondary shots, it actually killed the economy vs. the single shot injectors.
My current build has a GTP38R turbo
Banks intercooler
Banks turbo back exhaust
Swamps HVHF IDM
30% over injectors
CAI
Custom PHP tunes
And stage 1 trans.
It sounds like you've got one heck of a build going on, I'm sure your 7.3 is fun to drive! I assume its a Super Duty with the GTP38R?
I'd heard that the 7.3 got the PMRs past 2001, that somewhere down the road they found some sitting on the shelf and stuck them back in some late model 7.3's. Where did you hear about that? Also I thought the split shot was strictly for emissions, primarily noise emissions? Certainly International Engineers would've actually tested the fuel economy theory before making a run of over a million 7.3's with split shots, "hoping" to get better fuel economy. Not that I'm trying to pick or anything, I'm asking a legitimate questions. If I said something wrong, I'd like to learn so I can be correct. Besides, finding another source to learn about 7.3's is cool too. I'm too young to recall the history in person...
By the way, how's your transmission holding up?
Rnddiesel
Brother it's all good. I actually picked up a good bit while i worked with international, and the rest i got from people who made these trucks run "better" ( per say) like Vinny, owner of LFDP here in Ga.
The trans had to be replaced, stage 1 sits in her now, i am in fact running a GTP38R turbo and quite a few other goodies as well.
I have been thinking about going to code B injectors, stage 2 cam and GT42 turbo .
The 7.3 can take a lot of punishment, more than people give it credit for.
Rnddiesel
Stock 4R100 could not take it at all..lol
International actually got the injectors from CAT. On some cat engines you can actually swap injectors, same as the older DT466 from international.
Wow, how cool that you worked with International! Pretty much everything I've learned comes from obsessively searching for endless hours on google and reading everything I can on the 7.3. I'm sure that GTP38R is pretty nice, how's the spool up time on that turbo?
Yeah it seems like the weak spot for 7.3's is the darn transmission. Diesels just produce the power at a lower RPM which ultimately sends more torque through the transmission. Heck a gasser spinning twice the RPM of a diesel can basically transmit the same horsepower with half the torque of the diesel. Knock on wood my e4od is holding together for now...
So do you drag race your 7.3 or is it just your fun DD?
It's my DD. The spool time with the 38r is awesome man. It makers a big difference when pulling and keeping EGTs lower.
Hey man idk if you'll see this but I'm getting my 99 7.3 soon and I learned a lot from this video and I just wanna say thank you because there's not very many people that do this kind of stuff, nice truck man love the video
That's quite the compliment, thank you! I'm definitely glad to help! You know there's many subtle differences between each truck that make them what they are, though 99 year model trucks are also quite unique. I didn't have really much time in the video to cover the 99 year model truck too. They tend to be a goofy model year that's more of a hybrid between the OBS and Super Duty that you may want to look into. Depending on whether you have an 'early' 99 or a 'late' 99 there can be a pretty large difference. You can verify this by your serial number and the build date, though I don't know the cutoff serial number off the top of my head. Early 99 7.3's for instance still had the smaller 2 inch intake plenums like the OBS. Also early 99's had smaller 130 cc injectors vs late model SD's 140cc, and there's more differences of course. I found a link to a forum I've done lots of reading on, and it gives a brief list of the differences in early 99 year model trucks.
www.powerstroke.org/forum/early-99-discussion/32647-differences-between-early99-late99-03-trucks.html
Welcome to the 7.3 world my friend!
Rnddiesel thank you so much for taking out the time to help me out man I think your a really good person just for that so thank you and I'm deffenently going to do my research thanks again!!!!
No problem, have fun with the research!
I still in love with my 95 f-350 five speed crew cab dually and still dreaming of all the things i'm going do ...
It almost impossible to find a clean OBS up here in Canada.
Theres some you just have to give an arm and your kidney for them
I like the older power stroke
I currently own both an OBS and a Super duty. I honestly like both trucks.
I wish I had a quad cab OBS. It I got extended cab long bed haha. Far from perfect but, got some exhaust work done and super duty valve cover harness haha.
Missing your AC clutch plate bud! Mine thru the screw loose one day and I got lucky, found the plate and the screw sitting on the radiator support. Mine was from power down shifting the stick shift i think n spun loose the reverse thread holding screw. P.s the best color was infact the Taurmaline green! Beautiful color. Mines is the same truck minus king cab, XLT package , 5 speed of course. 285k never not taken me home at end of the day BTW.
Yeah, I fixed that by replacing the ac compressor, that one didn't work anyway. Funny thing, I actually pulled the ac compressor since it didn't work, I was planning to disassemble it and see if I could just un-seize it, but I broke the bolt that held on the clutch plate in the process. I don't know why I put the clutch plate back on there, but it came off when I was going down the road one time and gave me a nice reverse dent in the hood! I'm glad to hear you've had good luck with your truck as well, Dark Taurmaline is indeed a good color too. I've got 374k on mine now and it's still going strong!
@@Rnddiesel Actually had a guy try hard just yesterday at home depot to buy mine when I parked. Folks love em. They will probably bury me in mine when the day comes. Thanks for making videos! Plenty of nice old trucks in Oregon coast area from what I have seen. The loggers loved em. Very few in Florida. I see maybe one a week driving like mine in various conditions and everyone knows my truck around here in east orlando.
@@jim28fl That's awesome, your's must be in better shape than mine! It really depends on what part of the country you're in I guess. I try to make videos when I can, know its been a while since I mad any; I'm glad to hear folks like you appreciate them none the less!
I have a 92 single cab 7.3 idi with the banks sidewinder i love my obs i will never get rid of it i plane on marking it a show truck eventually but for now it's a work horse
If I had noticed this was over 20 minutes - I prob. wouldn't have watched. But having said that, this may be the best vid. I've watched on RUclips. Full disclosure - I own a 96 PS F250 CCSB.
Yeah looking back, it is a bit hard to watch, I've since watched it again, and man you have to take a break halfway through! Rock on with the OBS truck!
Great video! Enjoyed this a lot!
Too bad you live in Texas, cause I would absolutely volunteer my 2001 F-250 for comparison. Cause I have the crew cab as well AND mine is 4 wheel drive too. The comfort of the ride in the Super Duty is definitely the two wheel drive/stock tire variant, cause I have the 4x4 with a bit meatier tires and driving it beats the s**t out of me from how rough it is 😂
As far as my opinion on the 7.3:
She's not the fastest or the strongest girl at the dance, and she's loud as hell. But treat her right and she'll outlive you! As long as you carry a spare CPS in the glove box and some oil (just in case) you'll never be left stranded by the 7.3.
Plus it's relatively easy to work on! Love the sounds it makes and no goofy emission system making the engine ingest it's own waste.
One thing the trucks in this video have in common: the engine is in bad need of a hose down! Don't be shy! Just cover and/or avoid the alternator, batteries, and fuse box and go to town!
That 1st startup of both sounds nice. I've noticed every time 2 7.3s are idling next to each other they sean to synchronize sound. Especially if one is a mechanical fuel pump.
I have a 97 crew cab short bed f250 4x4 powerstroke, with 155k miles. Love my truck!
I've had all the Ford trucks. The later 7.3's blow the early nineties out of the water. Sweet spot was 99.5- 02.5, when they weakened the engines by dropping the forged rods. I like not having to deal with the Def and all that crap too. It does everything I want.
Great comparison video! I sparked a few questions for me:
1. Can I swap stock SD injectors into my OBS to make it more quiet and increase HP?
2. What makes your '97 make more HP than earlier OBS 7.3's? (Also, is the 96 the same as the 97? I have heard those two years were the same).
Thanks for all the good videos you make! Well informed and interesting!
You can swap SD injectors into an OBS since the engines are internally the same (with some small changes, but still generally interchangeable parts), but you would need to have the truck tuned to run properly. Since Super Duty engines run split shot injectors to quiet them down, the injector dumps a smaller pilot amount of diesel into the chamber to get combustion started, then the rest of the fuel charge is injected giving the engine a quieter knock. I'm pretty sure you'd want to advance the timing so the fuel injectors are triggered earlier so that you can still get optimized performance. Most folks go the other way around and put OBS injectors in a SD since the single shot can dump more fuel into the combustion chamber in a shorter amount of time compared to the SD unit with the split shot, so I'd imagine tuning would be a bit of a challenge, but probably not impossible to find. Scratch that... I just remembered California model OBS trucks had split shot injectors! I'm sure you can find some tuning then for a California truck, grab a California ECM, but probably it's best to find some tunes specific to what you're wanting to do with the Injector combination you're proposing.
On your second question I'm not so sure why the horsepower was stepped up. Such a small amount of 10 hp isn't huge. I'd imagine it's just different engine tuning that makes the difference. As far as I know the injectors and turbocharger are both the same. Their might be some subtle differences as well, but I'd bet it's more aggressive factory tuning more than anything. I will say now my 97 makes more hp than a stock 96 because my 97 has bigger injectors, a bigger exhaust, intercooler installed, and some aftermarket tuning which makes it a real fun truck to drive :-)
@@Rnddiesel awesome! thanks so much for the long response, i really appreciate it!
I bet the main reason for the slower time on the OBS is from the extra weight of the 4wd system over the 2wd of the SD
Got 4 of the OBS style. One is a 1997 factory Super Duty.
Had a 92 F350 longbed crewcab 4x4 and a 95 F350 crewcab dually. I’ve been driving my 01 F350 crewcab longbed dually 4x4 ever since I bought it new in 2001.
Need a truck to daily drive as well as haul some cars around. In terms of age, is buying a obs 7.3 more expensive to keep well maintained? During your ownership how has your truck been maintenance wise?
Love your truck!
Kevin Jose yeah I really love my truck too, it's a great one! Okay, 7.3's are starting to get up there in age and accumulate a lot of miles, like mine with 357k miles now. My injectors are a bit worn, it still needs suspension work, and I'm currently fixing the AC... parts do get pricey on the engine though. Injectors are $1200 for stock units if you do the work yourself, and the aftermarket sensors are not that great, so you usually have to go to the Ford dealer for parts. Really though only 3 actually go out, the ICP sensor, $250 at dealer, cam position sensor ~$30 at dealer, and IPR $250 at the dealer. That being said, they don't go out often, and other than the cam position sensor, odds are you'll get years of life out of them. Oil is expensive. It literally takes 3.5 gallons of the good oil Rotella t4 is what I use, and filters are around $20 too unless you shop around. So oil changes are around $65 every 5k miles. Coming from a gasser Chevy, nothing about the 7.3 is cheaper. It's just awesome! 7.3's as daily drivers are slower than molasses, like you need to be careful when taking left turns, because it takes the turbo so long to spool. I daily mine, and it's good, just challenging to park at times. You know there's a lot more to talk about I'm not really giving the 7.3 justice here. If you give me some time perhaps I can make a video and put it up on the channel.
Rnddiesel that would be great! Like a potential buyers guide / typical maintenance items on the 7.3. Thanks for the response, take your time if you are making a video. I want to make sure I make the right decision buying a truck like this.
Kevin Jose alright! I'll take a look and see about considering what all there is involved in choosing a 7.3. What other truck options are you considering?
Rnddiesel 7.3 and the 24v cummins. 7.3 means a lot more to me as my dad bought a new Ford Expedition back in 2000 and the sales person tried so hard to get my dad to pick up a 7.3 excursion instead. I’m a huge car enthusiast and love working on anything really. Just need a dependable rig to use on a daily basis. I’ve seen some trucks with around 100-150k miles asking 20-24k. Not sure if that’s overpriced or not.
Yeah, 20-24k sounds a bit high. Both are legendary engines and it's not the easiest to find a diesel with under 200k miles on it. You pay a lot more for a low mileage rig over one that just needs a little work. Heck I picked up my truck for $4500 a year ago, and I've spent another $4500 on it thus far, but I've redone all the brakes, shocks, fixed the air conditioner, replaced a few sensors, serviced pretty much every fluid in the truck, replaced the radiator, and have even upgraded a few things along the way too!
Love my 97 ext. cab long bed 7.3!!! It was my papaws and it had 400k on it when he passed. I got it pulled the og motor rebuilt it for a backup. I put a 1999 7.3 motor and computer in it due to it making more power. Yes it has the forged rods.
The only thing about them trucks is that they are so long but i love 7.3s
My grandpa used to have an OBS F-150 2 door long bed a decade ago.
Does your obs have a leveling kit? Also what size tires u running. Great video btw
Thanks! You know funny thing, my truck sits stock height. No lift, level or anything. OBS trucks weren't exactly built for aerodynamics, so that front axle really shows itself off! I'm running 33 inch tires on mine, not sure on the exact size, stock rim and everything though as far as I can tell. They were on the truck when I bought it, so I haven't really looked much into that. The tires are just a little bigger and wider than stock though.
Rnddiesel hey man thanks for the fast reply truck looks great always like the old body styles I finally got me a 96 7.3.
j D that's great, congrats on the new purchase, and have fun!
j D by the way, tires are LT305/70R16
The stock tire size on an Obs SRW is 235/85R16 have to order them basically. Nearest tire size that won't affect the odometer is 265/75R16. I went stock tires on mine.
You have to consider though in that 0-60 comparison is that the F-250 Super Duty is still a smaller truck compared to the F-350, so the test would be more accurate with an F-350 Super Duty with the crew cab and the long bed. Still, they run forever, and I will always love that OBS style with the push button door handles and the classic square body shape.
Very informing and interesting video, great job!
I’m 16 and I drive a 95 7.3 and I’ve redone the whole interior/ better seats, & better carpet. But I have to disagree with you on the toughness of the obs to the superduty. In my opinion the obs is much tougher on the body and the motor. The obs 7.3 is completely different than the superduty, the 7.3s after 98 had a weaker bottom end like you said, the ICM on the superduty is 24v but the ICM on the obs is 12v. I love my obs 7.3 and I wouldnt trade it for the world. On the manual fuel pump it was converted to an electric fuel pump so I just turn on the key and let it prime for about 10-20 min with the glow plug relay disconnected so you don’t fry the valve cover wiring harness don’t ask me why I know that. And most of the time here is Texas I wired in a glow plug off switch because I never need them 95% of the time. But I can tell that my trucks previous owner took very good care of it.
That's awesome, I'm definitely jealous, my first car at 16 was a 92' Buick... It sounds like you're taking care of the old truck, glad to hear it and have fun with the rig!
You to, fellow OBS 7.3 owner.
Thanks for the vid it is informative. Cheers brotha!
I prefer the superduty for the intercooler and slightly more power, but the OBS’s are some of the best looking vehicles on the road imo
I like the old body style...but the “Superduty” is a way better truck in A LOT of ways from engine to chassis.
Awesome video man👍🏻
Had a 95 CC long bed 4x4....best truck ever!
I prefer the OBS Fords but hey you gotta love the 7.3L Power Stroke Diesel my brother.
I had a 1996 obs power stroke. Only 130k miles. Sold it because the truck around the engine was a pos . The engine is legendary
Wow, that's a low mileage 7.3! The engine does have some faults, but it is still a legend, and all things considered, cheap to work on. I don't know if I'd say the truck is garbage. Maybe after so many years stuff just gets old and the plastic interiors get rattly. I've had to to a bit of restoration work gluing my interior back together, so... it just takes some work. I think the Ford body is probably the more robust of the big three, especially back in the day. Dodge dashes, look at em hard and they fall apart! Chevrolet is good as well, but they aren't as heavy duty, and the dashes on those like to crack as well. Drove me crazy on my 97 Chevy. Ford Dashes seem to just hold together!
Rnddiesel rust is a huge problem in some areas, my 94 5.8 only has 107,000 but the frame will die long before the engine does
Right, that's a shame about the rust. I'm southern born and raised, so I don't even think about rust. Trucks down here hold up just fine, probably not as good as in California but still they hold up fairly well.
Just do it. Dont think about it. Just upgrade. Best advice you can get
Great vid!
Intercooler is NOT for emissions. How many intercooler deletes do you see for sale on the internet? Intercooler is for horse power only.
I will not explain here. Look up the Gale Banks RUclips video on the subject. Rant over.
Thanks for the video. I test drove a 1998 Ford F250 at a dealership. It was on a "new" F150 cab with heavy duty suspension, but it said F250 on the badge. I never saw that model again. It may have been Ford's intermediate version.
FYI
To check for powder connecting rods there is a video on it. There is a block window plug you can pull off and look directly at them.
Thanks for the input! I had no idea there was a window in the block to check for powdered metal rods. If you can find them, would you post links to the videos you're referring to? Banks has so many videos out there its hard to know which one you're referring to. Gale Banks does know what he's talking about, that guy went and became an engineer so he could understand more about the performance parts he was adding and to design them, it's a pretty cool story! It sounds like you found an odd ball f250. 1998 was a weird year for ford trucks for sure. Did the round body f250 have a powerstroke in it? I've only seen one of those trucks once and I thought it was a joke at first, that someone had just put f250 badges on an f150.
Regarding the intercooler: They weren't put on strictly for emissions, though that is a good motivation for auto makers to utilize intercoolers. Here's a link to a study on intercooling, turbocharging, and power output: www.researchgate.net/publication/319979741_THE_EFFECT_OF_TURBOCHARGER_PRESSURE_AND_INTERCOOLER_TEMPERATURE_ON_ENGINE_PERFORMANCE
The study appears to be mostly based on theoretical calculations, though from my experience those theoretical equations are fairly accurate. I've worked with similar models myself as an mechanical engineer. See figure 12, it indicates that as you decrease the intake air temperature (via intecooling) the thermal efficiency of the engine is increased. Efficiency may not seem to be increased by much, but gaining around 2% thermal efficiency is a huge accomplishment! This allows the engine to burn less fuel and in turn produce less emissions, especially carbon emissions if you're talking about increasing thermal efficiency. Certainly intercooling also allows you to increase the power output of an engine and lower exhaust gas temperatures, that's definitely a good reason to intercool and one of the reasons I added one to my OBS truck. Another factor is that by increasing the air charge density via intercooling, you can increase the air taken into the engine per revolution. Yes this increases power output, but it also lowers emissions, Nitrous Oxide emission (NOx) in particular. Essentially the greater mass of air ingested causes a lower peak cylinder temperature (hence lowers egts) which reduced NOx formation. NOx is generally formed as a result of higher peak combustion temperatures. Really, I don't think most folks care about emissions as much as auto makers and the government. If you 'deleted' an intercooler simply because it lowered emissions, you'd be an idiot as it helps increase power, increase efficiency, lowers egt, and the cons to an intercooler are far less than those aforementioned pros. Look, if modern particulate filters actually increased power and fuel economy, (which they do neither) there would be far less aftermarket motivation to delete them! In the end, intercoolers are utilized to lower emissions, particularly NOx emissions at high engine load, but they also allow for increased power output! In engineering you rarely get parts that both increase power and lower emissions, especially these days when emissions regulations are so strict. Even if you factor out emissions regulations, I think auto makers would still intercool vehicles to increase power output, but they also consequently reduce emissions slightly. I've gathered much of this reasoning from a good friend of mine who spend a good part of 20 years working as a noise and vibration engineer for Cummins. By the way Merry Christmas!
@@Rnddiesel ruclips.net/video/eJ5fdfBoBUw/видео.html
Block window video to check for powder metal rods.
@@Rnddiesel
ruclips.net/video/hbsnzC3nXOU/видео.html
At the end of the video Gale sums up his findings.
Back to your question on the non Super Duty "new body style" F 250.
I was at a Ford dealership 1998 looking to by a new truck. The 1998 F250 I test drove had the triton V8. It also had a stiff ride compared to a '99 F150 I just drove. They both looked identical except for the bagdes. I told the Ford salesman to sell me the F150. The salesman did not bring up a Diesel version of the F250 and I did not ask.
I should have because it would have made for a better story today. Lol.
@John Campos Good idea adding intercooler.
With the intercooler, you are now increasing the air density entering the combustion chamber.
Black smoke coming out the exhaust is fuel which has not combusted. If you see black smoke come out of a diesel it is running rich. Looks cool but it is just wasting fuel.
My 95’ f250 7.3 will do a 13 sec 0-60 with the 4.10 gears I guess gearing makes a huge difference
Wow, that is impressive! 4.10 is also much better for towing. What sort of mpg do you get in the 95? I usually get 15-16 mpg in the 97.
Rnddiesel it gets about 17 mpg at 60mph
Okay, not bad, I can usually get a 18 mpg at 60 mph as well. I guess it's not a huge difference then, but for the acceleration, hat's of for the 4.10!
JimmyCasket 02 I call bs on that
Shaun Bennett good for you
I love 7.3s..... but I love my 6.0 too. And it will eat a 7.3. I've owned both! Definitely a good engine though!
I'm sure the 6.0 is way quicker! Heck the first diesel that wasn't a tractor was my Dad's 2013 LML Duramax, that thing is powerful. I used to think all diesels were that way, until I drove a stock 7.3 haha. It's all in that VGT turbo, too bad the 6.0 had a flawed head clamping design from the factory.
By the way, how has the 6.0 been from a reliability standpoint?
Not meaning to prod or anything I'm just genuinely curious about the 6.0 reliability. It's nice to hear from a 6.0 owner about their engine.
Rnddiesel it's really hit or miss with 6.0s man, 2003-2004 is a gamble. 2005+ is the way you wanna go. And still if you dont conduct proper maintenance then they aren't 100% either. If you leave them stock then they will be fine. It's when you start tuning them the heads fail. I've had mine a year and it's been great. I'm deleting it and studying it though this week as I want to tune it and just as a safety precaution. The VGT vainsstuck on mine....that's really the only problems I've had from it!
Rnddiesel studding** not studying😂😂
Kody Kill haha, good one!
I guess that makes sense for a 6.0 to really get into trouble with tubes. Heck 500hp is basically just a tune away with a 6.0 from what I've heard. The 6.0 is definitely a unique animal, thanks for the info!
The good thing about a idi is i can run straight biodiesel if needed with no changes to the motor
Yeah that is a nice thing about the idi's! I've heard the only issue would be with the fuel return lines. Supposedly biodiesel deteriorates the standard hoses that aren't specifically designed for the biodiesel. I'm sure the Bank's turbo really helps the truck out a lot too!
Rnddiesel yes sir it sure does
at 4:57 it looks as if the OBS is running later model coolant? It doesn't seem to be green? At first I thought it might have been the lighting, but the S Duty shows green. ?????
I guess it does look a bit different. I'm running a Fleet Charge brand coolant that is already pre-treated with SCA's (Supplemental Coolant Additives) to prevent cavitation in the OBS. For whatever reason the company that makes it likes to dye it purple. The Super Duty owner is a friend of mine; he's just running regular green antifreeze, but the guy doesn't have any SCA's in the coolant! I might inadvertently drop a couple bottles of SCA in his radiator one of these days and help keep a goo 7.3 from getting a hole in the block...
Nice I bought a '95 f350 7.3 Crew Cab Long Bed for $4500. I love everything except for parking it, oh and expensive repairs. Mine needs some work and love(which I've been doing steps at a time) because she sat for a couple years. She has a misfire but I think I've narrowed it down to an injector. I have the stupid little bronco mirrors like yours, which I hate gonna swap them soon. I don't daily drive her though. I have my '04 Grand Marquis for that because I can't afford to when it's $3.45/gallon here in Salt Lake.
P.S. I love the color of the Obs truck there. Mines Reef Blue Metallic, which I polished and waxed and she's a beauty now.
Nice! I paid the same for mine. Yeah parking it is a pain, but I figure it's a good problem up have, hopefully it means you'll have more truck than you'll ever need. I'm sure your truck looks good, deep blue OBS trucks are gorgeous. By the way I got rid of the plastic cover. Intercooler tubes got in the way...
Rnddiesel same here the plastic cover is stupid I didn't junk mine though.
I don't know, I think the cover looks kind of cool. Its a cover that actually has a panel on it so you can service the fuel filter. It'd be neat to remake the plastic cover to work with the intercooler though. I've still got mine too.
I actually like the smaller mirrors. They add a custom look
Comparing acceleration of a short bed, 2 wheel 250 to a long bed, 4wd, 350 is like apples to oranges. The rest was interesting. Thanks
I have a 99 2wd 7.3 crew cab dually and I love the ole girl .. best and strongest truck I've ever owned
I timed a 10.2 sec 0-60 today with new downpipe to 4inch straight with a 1.0ar housing turbine with wicked wheel and a hydra set to 80hp economy
Nice! That's pretty quick for a 7.3. I ought to time mine again, she's got a few upgrades since I made the video... How's the 1.0 ar housing working out for you? Are EGT's still manageable?
Got a 1995 7.3 power stroke I want more power for towing and better fuel economy. Suggestions?
How many miles per gallon are you getting? Towing & unloaded?
I'd start by making sure the truck is running smoothly, any check engine lights? The truck should be pretty peppy when warmed up and decently responsive. How old are the fuel injectors?
Injectors can wear out on 7.3's too, and while they may not make white smoke, they will cause a pretty bad sluggishness to the truck. I had a set of injectors with ~150k miles on them and the truck was definitely sluggish. Replaced with rebuild injectors and it made a huge difference!
I want a 7.3, came from a 6.0 want something different, but I wanna make it quick for a truck (not a drag truck) but I also want the ability to work on it myself. What’s the better one for towing and going quicker (with mods ofcourse)
FBI, I'd say the super duty is better to make quick hands down. They're already intercooled, transmissions are stronger and they already have bigger injectors and a decently sized HPOP. The only downside is the SD is a little heavier and more cramped to work on, but it's not that bad. Some things on the OBS are hard to work on too, especially with exhaust downpipes... Also SD has a quicker spooling turbo which is much better for daily driving. The only thing is some SD trucks have powered metal connecting rods, but that doesn't matter unless you go past 400 rear wheel horsepower.
I have question for everyone here..it looks like there is a niche market for these 7.3 trucks.. do you think they will have value or go up in value say 10 years from now?
And things of that sort
Man with how much I’ve drove a obs 7.3 it feels faster I would say the sounds bring the enjoyment lol
the body style of a super duty is in fact MUCH MUCH taller then an OBS, the are about the same width, but a superduty has a much taller cab and bed inside and out, by atleast 8-10 inches taller cab, can you measure them since you have them side by side?
bummy 906, I'll talk to my SD friend and see if I can get some measurements. Are you more interested in the exterior or interior dimensions?
it would be extremely appreciated if you could measure them in and out, curiosity has been killing me for a while lol, to measure the exterior just barely open the front door and measure the bottom to top, since they are both 4 doors which is perfect, i would like to know how tall the cab is measured from the center, to the roof, total cab height has to be really close to 50 inches according to my internet experience lol, let me know man, and if you havent understood what i meant by "center of the cab" this is what i meant snag.gy/oWOgDw.jpg
@@TheGamingChad. i grew up in a 03 super duty im in an obs 7.3 know and i know beyond a shadow of a doubt you are correct im 6,4 and if i sit up i will hit my head in the obs and he says the room in the obs is more nope not true obs is a much smaller truck in all directions
very informative, thank you :-)
Never understood the decision by Ford to remove the head restraints from the rear seat of early Super Duty crew cabs (came back in for 2004 or 5 MY, I think), so in that instance your OBS would be safer for rear seat passengers...
You I I took N
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TV
I'll take the OBS any day
Now you said at 6:10 that the bolt patterns were the same.
So theoretically you could bolt direct injection heads onto an idi block?
I don't think that's the case. The blocks are vastly different between the direct injection and indirect injection engines.
Nice job
Just got me a obs 5 speed ill be doing a hot shot build on my channel
Awesome, congrats on the truck! I sure wish mine were a 5 speed, but you can't have everything. Sounds like you've got a fun build coming up!
I drive a 97 7.3. Just over 200k. Ill take it over the newer one.
Fun fact: zf6 650 is underrated by 5 foot pounds for a 7.3 lol! It is rated at 520 foot pound, while 7.3 makes 525 lol.
Super duty is stronger. OBS is prettier. IMHO I own an OBS so OBS is better.
😁
I just prefer the body style of the newer 7.3. 99-2003.
Love my dad's 95 OBS dually with 4.11 rear gear, even with the small electronic issues that are starting to crop up ad 150,000 miles but I would like a 7.3L Powerstroke superduty, or maybe even a 6.0L knowing what I know now about them. Didn't know the super duty trucks had a trans temp gauge that far back. I figured that was something that started to be added about a few years ago... Also word of advice for anyone with the OBS Powerstroke: that mechanical fuel pump is a bitch to replace. And also about the fuel pump on the OBS is from what I've read on the web fuel pump on the OBS makes around 45 pounds of pressure but the injectors need 65 or so pounds of fuel pressure to perform at their max. Not sure if it's true or not but something to think about.
biggere question is, which can do more work, like tow more weight
Has anyone else had trouble with the E4OD transmission controller wiring?
I'm getting close to just swapping to a manual.
Do it! A zf5 will last way longer with less maintenance. The E4od in my 7.3 was rebuilt 8 years ago and it's already showing signs of wear such as it has a hard time deciding what gear it wants under throttle. Pisses me off Everytime I need to get going especially while towing trailers. At least in a manual you can choose your gears makes it to where my other 91 460 zf5 can out pull my 97 e4od 7.3 kinda sad when you think about the fact a truck 6 years older and being a gas can out pull and perform the diesel
Obs is better in my opinion I’m looking for one now lol I’m 16 and about to have my 2nd truck lol I’ve been loving the obs 7.3 soo much I just wanted a diesel and a truck because right know I have a 1992 ford bronco
The 99 nbs powerstroke does not have a stock trans temp gauge
Just like the old C10's F100 and Ford highboys, someday people are gonna want these real bad to restore and dump as much in a new car to restore those OBS trucks.
Would you have any concerns about a 300k mile 5 speed obs? Looking to buy one soon
If you run through the typical checks for blowby, it shifts fine, starts cold, and feels like it makes good power, then I'd go for it. If you find any starting fluid near the truck, I may be a bit leery, and would definitely ask if it was used. Starting fluid can be very bad for the engine. My truck just rolled over 400k miles and runs great. It leaks some oil, but with fresh injectors it makes plenty of power. Are you willing to do some work on the truck like replace glow plugs, or are you looking at it to be a good to go oil change only truck?
@@Rnddiesel I’m very mechanically inclined, just haven’t owned a powerstroke before. Thanks brother!
@@1_2_Many_Projects Then I'd definitely go for it. As long as the engine bottom end is all good, and the transmission is good, you can replace injectors and whatnot if needed. Even with worn out parts they'll just work. These Powerstrokes are legends for a reason. I'd definitely keep a spare camshaft position sensor on hand though. That's one thing that'll for sure stop a 7.3 in its tracks.
@@Rnddiesel ive heard about that and the icp, gonna be a service truck so I won’t have any shortage of tools on hand
Block heater in Texas, where are you originally from?
25BEDFORD I've lived in Texas my whole life! Had a fit this past winter with cold starts. Worn injectors and bad glow plugs, I couldn't get it to start below 50 degrees, so I had to use the block heater. Heck I think I was the first person to use the heater too, the 97 has pretty much always been a Texas truck too.
Only 2002 and 2003 7.3 Super Duty have transmission temp gauge.
94 7.3 IDI turbo Diesel, thanks for all the info! I really didn't know only 02 and 03 models had the trans temp gauge. It is really neat that those came factory. I just realized that my friends SD had the temp gauge about a week before I shot the video. By the way, nice IDI, those things are cool.
O1 Super Duty 7.3 Powerstroke is what I have now.
It has the voltage gauge instead of the transmission temperature gauge.
That's sure a real shame, too bad Ford didn't put an actual gauge there. Go figure it doesn't have any numbers anyway! I've got a real trans temp gauge on the OBS now, so that part is good to go now.
Kid just said it at 15:38 . The OBS is best for pulling. It all comes down to gearing and a 4.10 ratio will pull your house off it's foundation. My 91 460 zf5 has the same gearing and it out pulls my other 97 7.3 auto plus in the long run the OBS will be worth way more of kept up just because of the body style
Hey bro, i want fron seats reclinable for my 96 ford f250. Where i can get ones?
Look up "carparts.com"
@@williamlilleston1595 thanks
Found a OBS with 46k miles for 42k which is stupidly priced but if I had money to waste I’d buy it
Can't handcuff or tie your horse to the door handles of the newer trucks.
I have a bone stock obs 7.3, with a manual transmission, and ive done a 0-60 in 13.something seconds
Question. How much worse is the ride of The obs compared to the sd?
It's hard to say. The SD in the video is 2x4, my OBS is a 4x4 and 1 ton rather than a 3/4 ton. The OBS definitely gives a rough ride, though I think pretty much any 1 ton truck will do that. The SD was a little softer, though that was probably from it only being a 3/4 ton. It wasn't a huge world of difference, but definitely a little softer.
I’d much rather a 7.3 Super Duty, I miss my 2001 F350
OBS all the way. 1997 with a 5 speed I’m turning into my work truck
Good video