I am Tucker Jahns (TJahns), grandson of Bill Jahns (Dadiesel). She is still in the same spot as the photos, ole girl doesn’t deserve to be a ghost anymore and needs to be brought back to the world. My grandfather doesn’t even know the legend he has left with this IDI. I am here to provide relief that my brother and I are in the works of planning to bring it back to life. Edit: called my dad, we have sheets and video, and I guess it clocked 1250 hp actually, very accurate information my father says you have researched.
Glad to hear you're thinking about giving it some daylight! Chad keeps telling me we gotta stop in and see Joedey next time we're through that way, maybe this summer. I've been hearing about this truck since I was a kid, would love to see it run
That’s awesome! My all time hope when I made this video is that there would be more information brought to the surface, I look forward to hearing lots more about at same as thousands of others, your grandfather really made something special.
Im a mechanical Design Engineer that has worked for Remington Arms, Amazon, UPS, FedEx, and others. I'd be interested in taking each part of this build, and fully drawing all the custom pieces in CAD, producing the manufacturing prints for you to start making parts. All I ask is I get a set of parts to put a PPump on one of my idi's, and run at least a single turbo. Also, what size head studs did this engine get? Surely not the stock 1/2. I wonder how big you can machine the block for head studs. 1250hp would need some crazy clamping power to keep those heads on and gaskets from poppin!
Hell yeah it does! When he said that thing would spin 6000rpms my first thought was Peg putting her straight in the ketchup while feeding it a full can of Cosby sauce on a cold start... 😂
I have personally seen this truck a few years ago. No doubt this was a 1200 hp engine. The owner is one of the most mechanically intelligent people I have ever met. It was one of many “crazy” builds in the shop.
It really is crazy that an IDI engine can reach 1200HP, but I guess that begs the question, do you believe that this engine really made as much power that they say?
@@eyeameye9565 that’s fair, I’m hoping this video brings some other stuff out from hiding on this engine, someone somewhere has to have a video of it going down the track, same as the truck pulling. Fingers crossed
I know it isn't an IDI, but a guy I used to work for spent a small fortune building 2 7.3s converted to direct injection. They were built for a powerboat, and made over 1000hp when turned up. He kept them at 700hp for reliability. I spent weeks building manifolds.
Interesting to think about how re-discovering and documenting this monster IDI may effect the aftermarket. There's likely some old engineering tricks in there that have been all but lost to time. Performance minded companies could copy some pages from that book for sure if there's anything in it like that, if they wanted.
I doubt it most people that have an IDI have it for it, simplicity and reliability at stock power levels. If they wanted to make power, they’d get a real engine that doesn’t spread it cylinders apart.
Now that was bloody interesting, good job on the history, Old Peggin Leggin is as subtle as a sledge hammer, bloody brilliant though. I'm like Peg I'd love to know more, but don't let peg blow it up, keep up the great work youngster. 🇬🇧
Colt this episode was awesome! With enough engineering anything is possible to make this kind of power. It's still crazy to think though. I watched a video where a guy built a fors 300 i6 and custom fit 351 heads on it and it made over 600 horsepower. I just started watching Pegs videos and they are awesome. Thanks for sharing Colt. Cheers
Man!!! This was spectacularly awesome! Great video and explanation,Colt. And it is just mint to hear Peg speaking in his natural habitat 😅, can't wait for the next one bud, cheers!
I believe this can be true, simply because it is so outlandish. If you spent this much machining time, R&D, money and man hours I'd sure hope the engine was a monster. Just because manufacturers don't push the limits and are confined by regulations and bottom line, doesn't mean it is impossible. Just my 10c, thanks for a great video!
Im by no means an expert on this topic and many others, but I would say. In my opinion the motor could have likely had around the 1000hp mark if it indeed ran low 10s and high 9s in the 1/4 mile. Like I said, im no engineer. But given the shape of the f100 and any truck for that matter, you need to be pushing serious power on the top end given the drag coefficient of any truck. And my best guess would also be they didnt have any fancy nascar ducting and such under the car to help out with drag. So if it did run the speculated drag times, I dont think it would be totally unrealistic at all for IDI to be pushing around 1000+.
Hey Bub, just wanna let you know that The factory turbo idi was only offered from 93 to 94.5. after 94.5 95 96 and so on were all powerstrokes. And factory idi turbos were only an option. Most still came N/A.
I tink its aboot time to build one to make the legend true. then again, im stunned, so. But yah, get yerself an ole seven tree idi, and make er 1200 horsepower.
That's so wild that you were able to find all this out. I remember back around 2010 when I bought my first IDI 7.3 reading forum post after forum post where people were all over the place about this engine and it's wild to think that there isn't say an OG engine sitting in a warehouse collecting dust because this would have been amazing to see as a display piece at a museum somewhere. I always thought the IDI was a good platform and it was amazing how much torque they developed. I remember going to an IDI meet up and seeing someone run one on a dyno and although they only made like 250-60HP they made nearly 800 foot pounds at the wheel....and considering a Cummins usually gets into the 350-400 mark for that amount of torque I found it surprising.
I have a 6.9 IDI apart on the bench right now, going .040" over. I chose this engine because they won't blow head gaskets, crack blocks or cranks like the 6.2/6.5 GM, drain your wallet like a Cummins, Powerstroke or Duramax, and get reasonable fuel economy for what they are in an all mechanical diesel. If looking for HP one should probably start somewhere else though.
It’s been a hot minute since I’ve heard about this motor. I remember reading on it a number of years ago. It’s cool to see you resurrect it! Hypermax most likely did it because they could. Back then they were one of only a handful of companies that had the ability to make such a Frankenstein. If memory serves correct, these guys were big into tractor pulling long before they got into truck pulling, so they already knew how to make big power. My memory may be failing, but I also seem to remember that the fella who started Hypermax was a former IH engineer, so he knew the platforms as well. The story I remember reading on this motor is that someone approached Hypermax, and wanted to sh!t stomp everyone in truck pulling. Like you went on to say, the fella dominated and was promptly kicked off the circuit because his motor was so far ahead of the competition at the time
Jerry Lagod was an engineer who worked on the international 300 and 400 series diesel engines. He went on start Hypermax Engineering and support the tractor pulling sport. He is also credited with inventing water injection.
Well said! I’m really hoping this brings more attention to this engine, I’m sure someone has video proof of it either at the drag strip or at the truck pulls
i live close to joliet IL and i knew a guy that said he worked with a guy who built it or ran it, he told me about it 4 years ago and i never believed him much. I am an IDI fan so i need to find this truck.
One of my brothers had a beautiful 88 F350, 4x4 reg cab with a turbo diesel, he added a bigger turbo and injectors to he used to tow wooden boats he built all around the North East with ease. With a 5 speed manual transmission, using 3:55 gears he was able to squeeze 24 mpg just cruising around and 18 towing. Using a 3” exhaust through one big muffler. While he didn’t build this for racing, but towing boats as easily as possible in the most efficient way possible. I went on many of the trips, and was the only other person he would let drive, seeing I was a CDL tractor trailer driver. The thing I remember most was exhaust temps were so high I advised him to add a pyrometer, to help keep track, because there was so much power he never had any need to downshift on most Interstate hyw we traveled, except running across the Kancamagus in NH. With little to no smoke. Just for sits and giggles I’d love to tow a boat like that with a new F350 reg cab 4x4 with the HO 6.7 diesel, of course there’s no manual transmission but a 10 speed automatic, it would be interesting, one thing I know from an owner is in now way will you get 18-24 mpg with one.
International Harvester had a 9l V8 diesel which was also somehow related to the IDI's, which used an inline injection pump, I'm not sure the make, but I was thinking you might be able to adapt the 9 L V8 pump to a 6.9/7.3 IDI.
The 9L was a slightly revised version (or possibly the automotive version) of what was originally the DV-550 V8 IDI diesel. They were used in a couple IH tractors (1468 & 1568, and were rated at something like 140 hp, if memory serves) but were not very successful. The 9L was more commonly found in busses and other medium duty trucks. Also not known for much in the way of HP, but reliable and fuel efficient. The DV-550 did have a big brother, the DV-800 that IH used in at least one big 4WD Ag tractor (I think the model was 4768) and rated at around 300 hp.
The 9L was a revised DV550. 550s we're not turbocharged. I've been told that when you turbo them and work em the bottom end gets weak and it'll drop the crank out the bottom. There was a larger line of international V8s that included the DV 573 and DV 800. The 573 and 800 were mostly used in heavy trucks. A lot of 800s also went in construction equipment and 4586 and 4786 tractors.
So. The pump on it is the pump off a John Deere 955 CI V8 put in a couple wheel loaders and the 8850 tractor. I just so happen to have a good pump…and turbo off one of them 955’s and you’re giving me ideas.
I remember reading about the industrial idit was originally supposed to make 230hp factory but it was returned because it was a early 94 and the 7.3 psd was being released a few months later and couldn't have the idi out prove it
I had the turbo IDI it was one hell of an engine, 500k miles, it ran like a top still, they'll run off anything literally. Just like those multi-fuel military engines. As long as you filter it good. 👌💯
I recall seeing an IDI drag truck in Diesel Power magazine a few years ago. I think this one was a GM, though. It was the first time I saw a diverter valve being used.
Thanks for the free rep man. In terms of the rest, I think we all know that the Jahns truck wasn't even close to 1200hp. Number one, the weakest link after head studs is the connecting rods. At best in 94, you had factory turbo IDI units, and they are plenty stout (right alongside forged 7.3 PSD units), but they aren't doing 1200hp. Secondary, ported IDI heads flow less than stock units (not that that's a big deal when you're pushing 100+ boost into it), because of the port velocity, the engine doesn't make power past 3000rpm. I've personally made peak power at 3300RPM N/A but that's because N/A doesn't make any airflow down low... Regardless... The legend most likely made ~700hp, and shit rods, not the block. Cast iron doesn't flex and spit out freeze plugs, it cracks and breaks. Either way, cool video.
My 1.9 vw mTDI with a variable turbo makes as much power as a ford idi 4x it’s size. And mine gets 60mpg. THAT sir. Is economical. For the fuel you spend to drive for 20 years. That’s all the fuel I need for my whole life.
@@fastinradfordable It's economical for a 3/4 Ton Truck 4X4 Ext Cab, Long Bed with Shell. My other vehicle is a 2nd gen prius that gets about 45mpg. That 1.9 sounds awesome, what do you have it in?
Great video . My friends and I have been talking about this engine for years . Thank you for bringing in back into the light of day. If you make any more idi videos feel free to use a clip off my channel of my idi doing a burn out.
I had one of the later models the 7.3 turbo variant sadly I had to let my baby go due to financial issues and no longer doing the work that I had been doing which required a pickup truck. I regretted it every day but at least she's going on to somebody who loves her and uses her every single day to travel the country hauling a gooseneck camper.
I remember reading about this in Diesel Power around 2005 before the pics came out. I absolutely believed it to be a made-up story. I knew the power was possible, but there was zero evidence of it for so long online.
I called up hypermax. Theyd throw a kit together for you to do this build. Said itd cost around 15-20k. Wouldnt include lines or engine internals. And youd have to have the pistons cut to reduce compression and expect to use several cans of ether to get it started.
IDI engines were capable of very high rpms without boost, the combustion system sped up the burning speed. The Mercedes IDI’s from the 90’s can make 200hp/liter
Great video, you did an awesome job at getting all the information that is on the internet! I have an p-pump off an international v8 9.0liter. It’s so long the intake has to be cut in half!
Just imagine if someone took the time to custom machine a set of direct injection heads, and a p-pump timing cover. I bet it would be an absolute animal. But good luck with finding an 8 cylinder p-pump for cheap
Interesting backstory on this thing. I do have to wonder why they kept it an IDI for a power build though. Even ported out those prechambers become a hell of a bottleneck, and direct injected diesels weren't a new tech even in the 80s. I'm working on building my own 7.3 right now, I have a 71 F250 built around it, and I'm putting the turbo up front like a 6.5. I've thought about cobbling together a Bosch MW pump as used on Perkins V8 diesels, but I don't think I'll be pushing anywhere near the limits of the DB2 pump. I don't plan on going past 250hp, I just want to be able to cross the Rockies without making them the Smokies.
THAT 6" MAIN GIRDLE IS NOT FREAKING JOKE !!! 127PSI OF BOOST IS BONKERS THOUGH. AND "RUBBER FREEZE PLUGS DUE TO BLOCK FLEX"..WTF MAN..ITS CRYSTAL CLEAR THAT JAHNS HAD MONEY TO PISS AWAY. WONDER HOW MUCH THAT CUSTOM BLOCK COST.
As far as I know, the truck is still sitting in a barn just outside of Joliet Illinois, fairly local to me, i saw it when i was a kid years ago, didn’t really think much of it, other than it had a giant turbo sticking out of the hood and looked like a hot wheels car lol
Hypermax was a pioneer in tractor pulling and Diesel technology, it could have easily made such power. While tractor puller love too boast, hypermax was very familiar with IH as they were the pioneers in hyping up IHs pulling tractors especially the 466. Hypermax could make any custom part they wanted when they wanted even if everything in this engine was one off. Mechanical diesels can be absolute monsters and there’s plenty of 5.9 Cummins and tractor engines making well over 1k horsepower. 1200hp is very achievable with a twin turbo mechanical diesel that is running an inline pump, at that point the fuel system is just a controlled fuel leak into the combustion chamber. The thing is no one is building IDIs like this or has ever built another IDI like this so many people won’t believe it but at the end of the day it’s the same fuel system as a Super Stock pulling tractor shoved onto a pickup v8. There’s people running ppump swapped powerstrokes making this much power. It’s not out of the realm of possibility once you consider the factors and the fact that Hypermax had whatever they wanted at their disposal. For example look at Gale banks. He can build a Duramax with whatever he wants in a completely custom manner and run tests all day swapping parts and changing factors in a manner that can’t be replicated. A 1200hp IDI isn’t a far fetched idea, the IDI just didn’t catch on as a performance engine like tractor engines or the cummins and it wasnt marketed as such either. It was a decently powered NA V8 diesel that could keep up with a big block and get decent fuel mileage. Cummins jumped onto the pickup scene with a reputation of bullet proof,and at the time high powered engines, coming from a long history of Ag and Trucking. Tractor pulling was popular long before truck pulling ever was and that’s where Hypermax started off
I very much hope one of you can at least get in contact with the current owners, this engine has to be explored 💪…I doubt much of anything is still stock inside …it probably just has forged internals, a slightly more aggressive cam, fire rings, studs and better valve train …stuff that’s very common in modern diesel performance engines…my guess is this motor was WAAAY ahead of its time using what was available in the era it was modified in
I think if you put 147 psi through an engine of that displacement and you can feed it enough fuel to compensate for that amount of air, it's gonna make that kind of horsepower no problem. Would it live very long at that power level? I don't know. Maybe they did that once, blew it up, then dialed it back, but still, it had to have made a lot of power regardless if it's tearing the block apart repeatedly like that.
Interesting thing is I heard on forums from a guy , that the issue it had was breaking cams and for the life of me couldnt figure out how it could do it. Block flex go figure
Great video. Love the 7.3 just scrap my E350 it ran great but rusted out on me. Joy's of living in the rust belt. I wanted to take the engine out but my engine hoist wouldn't lift it.
@@highostablegarage just remove the prechamber and make a longer injector would that work maybe I have a 1.9 tdi and v1505 the tdi is di the Kubota is a swirl chamber but acts like a di injector
@@infernoking7504You would need a different cylinder head as well as different pistons. Trying to run a DI cylinder head with practically flat IDI pistons would make your compression ratio way too high, and the pistons would probably smack the glow plugs and injector nozzles as well.
Yes but you would have to change the cylinder heads, injectors, and pistons at the bare minimum in order to make it work. With a 6.9 or 7.3 IDI you would need fully custom cylinder heads built in order to continue utilizing the injection pump fuel system. 7.3 powerstroke pistons would probably work in a 7.3 IDI but you might need custom connecting rods. The Volkswagen AAZ engine is IDI and can be converted into DI by using the pistons, cylinder head, and injectors from a 1Z TDI engine.
1200hp seems like a bit too much, but considering money solves all problems, I’d believe it exists. This wasn’t *just* a one off, this thing was probably reengineered several times over. Perhaps a call or two to Gale Banks would answer some questions.
I had 6.9 in my 1987 ford f250. Fked up and put car oil in it not 15/40 dohhh. Drive it for some time. Then i put a 7.3 idi. Took every thing from 6.9 and put it onto the 7.3 ats intake and 3 inch gartit turbo. Injuction pump. Exsts wire harns. Fly wheel. It was a ripper wish i never got rid of it. Runing about 11 lb of boost. It lived on the hill so i ran red deslie in it. Dule tanks to.
Best idi ever built was made by Detroit diesel and installed in chevy pickup trucks and military humvees. Pretty low hp but spectacular mpg depending on the drucks diff ratio. At 23:1 compression ratio and no turbo they were built for efficiency. They nailed it.
@Look_What_You_Did normal maintenance is all they need, when you burn out glow plugs and dont replace them then yeah not gonna start. All 8 glow plugs and number 1 fuel they will fire up in -20. A few bad glow plugs and no they will not. So maintain it properly.
Ive been doing my own research and you found some things i havnt that was a very good video im working on making a monster idi like that one but its gunna take time ill be using parts from classic diesel designs and some from r&d i know a few people that have lots of experience with this kind of stuff and it will be exciting to finish id love to see what hypermax did ive tryed sending then emails asking about it but all ive gotten is no reply
I think it was only a couple passes, sadly not a lot of info is known during its truck pulling days but we know it kept cracking blocks during its drag racing events. Considering how little drag picture are know about dadiesel on the web I can only speculate it only operated for 1 or 2 seasons. Hopefully this video brings out more information about the engine.
So just out of curiosity, what should a feller with a truck and goose neck trailer who is also more than willing to drive and get this truck, yeah what should a feller call that go fund me?
@@highostablegarage 10 years of Towing heavy towing 10 years of racing 10 years of hole shots 10 years of donuts 10 years of dumping any and all liquids in the tank you can imagine and it runs the same as it did 10 years ago I can get in this truck do 80 mph for 5 hours with 25,000 lb with the tank filled with motor oil and have zero thoughts concerns or issues whatsoever I can do that everyday all day and it does not break Ain't No Other motor do that
@@highostablegarage and after all that it runs perfect cranks instantly does not smoke does not have excessive Blow by does not tick or not or overheat or nothing absolutely nothing it's more reliable than your old lady and your side chick put together
@@tonydiesel3444 My 12 valve Cummins does that, 500k miles on the odometer when I pulled it from a box truck and dumped it in my pickup. 500k miles of lugging a 26,000lbs Ford F-800 around the country for 23 years. Now it's powering my 1 ton. But I get what you're saying. The 7.3 PS is such a great engine. Since the early 2000's it's been downhill. The new engines make more power, but are expensive and unreliable and won't still be chugging along decades later like the old workhorses are doing.
I am Tucker Jahns (TJahns), grandson of Bill Jahns (Dadiesel). She is still in the same spot as the photos, ole girl doesn’t deserve to be a ghost anymore and needs to be brought back to the world. My grandfather doesn’t even know the legend he has left with this IDI. I am here to provide relief that my brother and I are in the works of planning to bring it back to life.
Edit: called my dad, we have sheets and video, and I guess it clocked 1250 hp actually, very accurate information my father says you have researched.
Glad to hear you're thinking about giving it some daylight!
Chad keeps telling me we gotta stop in and see Joedey next time we're through that way, maybe this summer.
I've been hearing about this truck since I was a kid, would love to see it run
That’s awesome! My all time hope when I made this video is that there would be more information brought to the surface, I look forward to hearing lots more about at same as thousands of others, your grandfather really made something special.
😏😈it's gonna be a BEAST
@@highostablegarageyou, him, and peg need to get together to bring this thing back to life and make it badder than ever
Im a mechanical Design Engineer that has worked for Remington Arms, Amazon, UPS, FedEx, and others. I'd be interested in taking each part of this build, and fully drawing all the custom pieces in CAD, producing the manufacturing prints for you to start making parts. All I ask is I get a set of parts to put a PPump on one of my idi's, and run at least a single turbo. Also, what size head studs did this engine get? Surely not the stock 1/2. I wonder how big you can machine the block for head studs. 1250hp would need some crazy clamping power to keep those heads on and gaskets from poppin!
The world needs a 1200 hp Slave Lake.
Sure does haha 😂
Hell yeah it does! When he said that thing would spin 6000rpms my first thought was Peg putting her straight in the ketchup while feeding it a full can of Cosby sauce on a cold start... 😂
@@_Frank_the_Tank would be a great sight to see haha 😂
@@highostablegarage 1200 hp Slave Lake vs the Cummins Dumpster drag races
That be mint
Knowing that the family still has that truck is great!
It is pretty sweet, doesn’t happen often like that
Peg is the only worthy person to own this beast, he’s gotta have it!!
Edit: also amazing production man! Loved the vidja
Glad you liked it!
I thought the same thing!
I have personally seen this truck a few years ago. No doubt this was a 1200 hp engine. The owner is one of the most mechanically intelligent people I have ever met. It was one of many “crazy” builds in the shop.
Yep, Bill is a true pioneer of diesel power.
He's what got Scheids into performance diesel, and others
It really is crazy that an IDI engine can reach 1200HP, but I guess that begs the question, do you believe that this engine really made as much power that they say?
I do and I have several 6.9 idi and 7.3 idi I'm working on my spare time to build one. I am a Machi ist and have access to make custom heads
Until someone makes this, this is simply bs. Pictures arent proof of horses or torque. It looks nice sure, but that's about it.
@@eyeameye9565 that’s fair, I’m hoping this video brings some other stuff out from hiding on this engine, someone somewhere has to have a video of it going down the track, same as the truck pulling. Fingers crossed
@@highostablegarage
Joliet is just a couple hours away from me.
Interesting it ended up in ILLinoi-istan
I'd belive 700 at the crank, any higher than that and you're violating the fuckin laws of thermodynamics
Compound turbos without a single intercooler.
Banks wasn’t involved that’s for sure😂
Correct on that one haha 😂
Banks sucks... I harp CONSTANTLY in the Powerstroke community.
I know it isn't an IDI, but a guy I used to work for spent a small fortune building 2 7.3s converted to direct injection. They were built for a powerboat, and made over 1000hp when turned up. He kept them at 700hp for reliability. I spent weeks building manifolds.
There's a P-pumped 7.3 pulling truck that used to be local to me. Lunatic fringe was it's name.
Hmmm, I’ll have to take a look at it
Interesting to think about how re-discovering and documenting this monster IDI may effect the aftermarket. There's likely some old engineering tricks in there that have been all but lost to time. Performance minded companies could copy some pages from that book for sure if there's anything in it like that, if they wanted.
100%, it would change the aftermarket overnight likely for this engine
I doubt it most people that have an IDI have it for it, simplicity and reliability at stock power levels. If they wanted to make power, they’d get a real engine that doesn’t spread it cylinders apart.
What an awesome update video! Crazy that dadiesel still exists! Edit: AND THE MINTY FCKIN PEG CAMEO!
Glad you liked it haha 👌
Now that was bloody interesting, good job on the history, Old Peggin Leggin is as subtle as a sledge hammer, bloody brilliant though. I'm like Peg I'd love to know more, but don't let peg blow it up, keep up the great work youngster. 🇬🇧
Haha 😂 hopefully this video draws out more information on it 👌
Colt this episode was awesome! With enough engineering anything is possible to make this kind of power. It's still crazy to think though. I watched a video where a guy built a fors 300 i6 and custom fit 351 heads on it and it made over 600 horsepower. I just started watching Pegs videos and they are awesome. Thanks for sharing Colt. Cheers
Glad you like em haha! Yeah I’ve seen a few videos with ls heads segmented and welded together and put on 300s, pretty wild stuff
Man!!! This was spectacularly awesome! Great video and explanation,Colt. And it is just mint to hear Peg speaking in his natural habitat 😅, can't wait for the next one bud, cheers!
Haha 😂 yeah I figured I wouldn’t censor anything xD kids put your earmuffs on haha, he’s a good feller 👌
I believe this can be true, simply because it is so outlandish. If you spent this much machining time, R&D, money and man hours I'd sure hope the engine was a monster.
Just because manufacturers don't push the limits and are confined by regulations and bottom line, doesn't mean it is impossible.
Just my 10c, thanks for a great video!
Good point of view! Glad you enjoyed it 👌
I remember in 2022 when those pictures surfaced. Was super exciting to see its still around
Yes sir, pretty wild it was dormant for so long, hopefully they do a more involved update on it sometime soon.
i told my dad about this and his eyes grew to the size of soft balls when he watched this video with me
That’s awesome haha 😂
Liar. Saying you know your old man is like your mum knowing the winning horse at a five way race.
Im by no means an expert on this topic and many others, but I would say. In my opinion the motor could have likely had around the 1000hp mark if it indeed ran low 10s and high 9s in the 1/4 mile. Like I said, im no engineer. But given the shape of the f100 and any truck for that matter, you need to be pushing serious power on the top end given the drag coefficient of any truck. And my best guess would also be they didnt have any fancy nascar ducting and such under the car to help out with drag. So if it did run the speculated drag times, I dont think it would be totally unrealistic at all for IDI to be pushing around 1000+.
I would love to get my mitts on the engine and just see how it tics, that would give a lot of closure
Hey Bub, just wanna let you know that The factory turbo idi was only offered from 93 to 94.5. after 94.5 95 96 and so on were all powerstrokes. And factory idi turbos were only an option. Most still came N/A.
I tink its aboot time to build one to make the legend true. then again, im stunned, so. But yah, get yerself an ole seven tree idi, and make er 1200 horsepower.
I like that plan haha
That's so wild that you were able to find all this out. I remember back around 2010 when I bought my first IDI 7.3 reading forum post after forum post where people were all over the place about this engine and it's wild to think that there isn't say an OG engine sitting in a warehouse collecting dust because this would have been amazing to see as a display piece at a museum somewhere. I always thought the IDI was a good platform and it was amazing how much torque they developed. I remember going to an IDI meet up and seeing someone run one on a dyno and although they only made like 250-60HP they made nearly 800 foot pounds at the wheel....and considering a Cummins usually gets into the 350-400 mark for that amount of torque I found it surprising.
Yes sir, this old block definitely had a crazy amount of money thrown at it, especially in the 1990s!
I have a 6.9 IDI apart on the bench right now, going .040" over. I chose this engine because they won't blow head gaskets, crack blocks or cranks like the 6.2/6.5 GM, drain your wallet like a Cummins, Powerstroke or Duramax, and get reasonable fuel economy for what they are in an all mechanical diesel. If looking for HP one should probably start somewhere else though.
Right... considering Cummins is without a doubt more reliable while costing far less to achieve more power.
Hope you got head studs if you want the head gaskets to stay put.
That truck needs a complete restoration. It's a peice of history.
It’s been a hot minute since I’ve heard about this motor. I remember reading on it a number of years ago. It’s cool to see you resurrect it!
Hypermax most likely did it because they could. Back then they were one of only a handful of companies that had the ability to make such a Frankenstein. If memory serves correct, these guys were big into tractor pulling long before they got into truck pulling, so they already knew how to make big power. My memory may be failing, but I also seem to remember that the fella who started Hypermax was a former IH engineer, so he knew the platforms as well.
The story I remember reading on this motor is that someone approached Hypermax, and wanted to sh!t stomp everyone in truck pulling. Like you went on to say, the fella dominated and was promptly kicked off the circuit because his motor was so far ahead of the competition at the time
Jerry Lagod was an engineer who worked on the international 300 and 400 series diesel engines. He went on start Hypermax Engineering and support the tractor pulling sport. He is also credited with inventing water injection.
Well said! I’m really hoping this brings more attention to this engine, I’m sure someone has video proof of it either at the drag strip or at the truck pulls
Very interesting
i live close to joliet IL and i knew a guy that said he worked with a guy who built it or ran it, he told me about it 4 years ago and i never believed him much. I am an IDI fan so i need to find this truck.
my god i love peg, watched every damn vidya
National treasure haha 😂
One of my brothers had a beautiful 88 F350, 4x4 reg cab with a turbo diesel, he added a bigger turbo and injectors to he used to tow wooden boats he built all around the North East with ease. With a 5 speed manual transmission, using 3:55 gears he was able to squeeze 24 mpg just cruising around and 18 towing. Using a 3” exhaust through one big muffler. While he didn’t build this for racing, but towing boats as easily as possible in the most efficient way possible. I went on many of the trips, and was the only other person he would let drive, seeing I was a CDL tractor trailer driver. The thing I remember most was exhaust temps were so high I advised him to add a pyrometer, to help keep track, because there was so much power he never had any need to downshift on most Interstate hyw we traveled, except running across the Kancamagus in NH. With little to no smoke. Just for sits and giggles I’d love to tow a boat like that with a new F350 reg cab 4x4 with the HO 6.7 diesel, of course there’s no manual transmission but a 10 speed automatic, it would be interesting, one thing I know from an owner is in now way will you get 18-24 mpg with one.
Peg had some great input. this is a great video, automotive Archaeology is always fun to watch and learn about.
Yes sir I enjoyed working on this one too!
Thanks for the peg cameo!
Glad you liked it!
International Harvester had a 9l V8 diesel which was also somehow related to the IDI's, which used an inline injection pump, I'm not sure the make, but I was thinking you might be able to adapt the 9 L V8 pump to a 6.9/7.3 IDI.
Interesting perspective, I’ll have to do some digging but companies do love reusing parts for even other engine families, might be easier than thought
The 9L was a slightly revised version (or possibly the automotive version) of what was originally the DV-550 V8 IDI diesel. They were used in a couple IH tractors (1468 & 1568, and were rated at something like 140 hp, if memory serves) but were not very successful. The 9L was more commonly found in busses and other medium duty trucks. Also not known for much in the way of HP, but reliable and fuel efficient. The DV-550 did have a big brother, the DV-800 that IH used in at least one big 4WD Ag tractor (I think the model was 4768) and rated at around 300 hp.
The 9L was a revised DV550. 550s we're not turbocharged. I've been told that when you turbo them and work em the bottom end gets weak and it'll drop the crank out the bottom. There was a larger line of international V8s that included the DV 573 and DV 800. The 573 and 800 were mostly used in heavy trucks. A lot of 800s also went in construction equipment and 4586 and 4786 tractors.
I know you basically have to source a p pump from a 1468 to build most v8 diesels for pulling duty
Zip ties just has a way with words! Such a smooth speaker!! Let’s see that 1200hp monster!!!
Haha 😂
i looked up the stats of the truck from when it ran and the numbers make sense 4500 lb truck 1100-1200 hp 130-135 trap speed and 10 second passes
So. The pump on it is the pump off a John Deere 955 CI V8 put in a couple wheel loaders and the 8850 tractor. I just so happen to have a good pump…and turbo off one of them 955’s and you’re giving me ideas.
Yes sir update me on your progress haha 😂
It's most likely off a 9.0 liter IH. It had an inline pump.
Slight correction, the idi turbo was until 94.5 when the powerstroke came out, not 95.5. Great video though!!!
Thanks for the correction 👌
I was gonna say that😂 cool video though
I remember reading about the industrial idit was originally supposed to make 230hp factory but it was returned because it was a early 94 and the 7.3 psd was being released a few months later and couldn't have the idi out prove it
I had the turbo IDI it was one hell of an engine, 500k miles, it ran like a top still, they'll run off anything literally. Just like those multi-fuel military engines. As long as you filter it good. 👌💯
Pretty much 👌
The Zip Ties and Bias Plies needs the 1200 HP IDI! Must have it, in the Cosby sauce house 🏡
Beauty vid, thanks man 👌🏻
Glad you liked it 👌
I recall seeing an IDI drag truck in Diesel Power magazine a few years ago. I think this one was a GM, though. It was the first time I saw a diverter valve being used.
Thanks for the free rep man.
In terms of the rest, I think we all know that the Jahns truck wasn't even close to 1200hp. Number one, the weakest link after head studs is the connecting rods. At best in 94, you had factory turbo IDI units, and they are plenty stout (right alongside forged 7.3 PSD units), but they aren't doing 1200hp.
Secondary, ported IDI heads flow less than stock units (not that that's a big deal when you're pushing 100+ boost into it), because of the port velocity, the engine doesn't make power past 3000rpm. I've personally made peak power at 3300RPM N/A but that's because N/A doesn't make any airflow down low... Regardless...
The legend most likely made ~700hp, and shit rods, not the block. Cast iron doesn't flex and spit out freeze plugs, it cracks and breaks.
Either way, cool video.
i love my 6.5idi. Not as powerful as 7.3, but its very economical and cheap/easy to work on.
6.5 is the detroit idi
My 1.9 vw mTDI with a variable turbo makes as much power as a ford idi 4x it’s size.
And mine gets 60mpg.
THAT sir.
Is economical.
For the fuel you spend to drive for 20 years.
That’s all the fuel I need for my whole life.
@@fastinradfordable okay? Who wants to drive some shitty little diesel? Not me.
@@fastinradfordable It's economical for a 3/4 Ton Truck 4X4 Ext Cab, Long Bed with Shell. My other vehicle is a 2nd gen prius that gets about 45mpg. That 1.9 sounds awesome, what do you have it in?
@@psd28 then why are you watching videos about 160hp diesels from the 80s lol
It wouldn't be an IDI video without Peg
Correct haha 😂
👌
Awesome story and I’m a gm guy , obviously this channel has been an eye opener in many ways!
Imagine the performance of it w/ today's tech.. Wild!
Good video
Thanks you!
Great video . My friends and I have been talking about this engine for years . Thank you for bringing in back into the light of day. If you make any more idi videos feel free to use a clip off my channel of my idi doing a burn out.
Will do! I’ll keep you in mind for the next one 👌
Man, hearing pegs' voices before it being ungreased is music to my ears.
Haha 😂 sure is
I had one of the later models the 7.3 turbo variant sadly I had to let my baby go due to financial issues and no longer doing the work that I had been doing which required a pickup truck. I regretted it every day but at least she's going on to somebody who loves her and uses her every single day to travel the country hauling a gooseneck camper.
Yes sir, likely still working hard to this day!
I remember reading about this in Diesel Power around 2005 before the pics came out. I absolutely believed it to be a made-up story. I knew the power was possible, but there was zero evidence of it for so long online.
I called up hypermax. Theyd throw a kit together for you to do this build. Said itd cost around 15-20k. Wouldnt include lines or engine internals. And youd have to have the pistons cut to reduce compression and expect to use several cans of ether to get it started.
Peg needs this truck. Hopefully the stars will align
IDI engines were capable of very high rpms without boost, the combustion system sped up the burning speed. The Mercedes IDI’s from the 90’s can make 200hp/liter
Great video, you did an awesome job at getting all the information that is on the internet! I have an p-pump off an international v8 9.0liter. It’s so long the intake has to be cut in half!
Yes sir makes sense, it explains the custom intake on this old unit 👌
what a cool bit of IDI History , thanks
Just imagine if someone took the time to custom machine a set of direct injection heads, and a p-pump timing cover. I bet it would be an absolute animal. But good luck with finding an 8 cylinder p-pump for cheap
Interesting backstory on this thing. I do have to wonder why they kept it an IDI for a power build though. Even ported out those prechambers become a hell of a bottleneck, and direct injected diesels weren't a new tech even in the 80s.
I'm working on building my own 7.3 right now, I have a 71 F250 built around it, and I'm putting the turbo up front like a 6.5. I've thought about cobbling together a Bosch MW pump as used on Perkins V8 diesels, but I don't think I'll be pushing anywhere near the limits of the DB2 pump. I don't plan on going past 250hp, I just want to be able to cross the Rockies without making them the Smokies.
I’ve never heard of this and I would say I’m a ford diesel guy thru and thru, thanks for the video!
Hopefully this video attracts enough attention and gets this engine out of dust pile 👌
THAT 6" MAIN GIRDLE IS NOT FREAKING JOKE !!! 127PSI OF BOOST IS BONKERS THOUGH. AND "RUBBER FREEZE PLUGS DUE TO BLOCK FLEX"..WTF MAN..ITS CRYSTAL CLEAR THAT JAHNS HAD MONEY TO PISS AWAY. WONDER HOW MUCH THAT CUSTOM BLOCK COST.
Likely a ton haha 😂
Great Job presenting this diesel history
Glad you liked it !
As far as I know, the truck is still sitting in a barn just outside of Joliet Illinois, fairly local to me, i saw it when i was a kid years ago, didn’t really think much of it, other than it had a giant turbo sticking out of the hood and looked like a hot wheels car lol
I really hope someone somewhere has videos of it in action, I’m hoping this video drives those to the surface
👌
👌
Ya way I look at it best diesel wins period 7.3 was legendary
I enjoy your videos and try to keep them coming.😊
The zip tie guy is soooo funny!!!
Peg would be happy to know that it requires A good hose down of Cosby sauce to start because it only had an an 18 to 1 compression ratio.
Hypermax was a pioneer in tractor pulling and Diesel technology, it could have easily made such power. While tractor puller love too boast, hypermax was very familiar with IH as they were the pioneers in hyping up IHs pulling tractors especially the 466. Hypermax could make any custom part they wanted when they wanted even if everything in this engine was one off. Mechanical diesels can be absolute monsters and there’s plenty of 5.9 Cummins and tractor engines making well over 1k horsepower. 1200hp is very achievable with a twin turbo mechanical diesel that is running an inline pump, at that point the fuel system is just a controlled fuel leak into the combustion chamber. The thing is no one is building IDIs like this or has ever built another IDI like this so many people won’t believe it but at the end of the day it’s the same fuel system as a Super Stock pulling tractor shoved onto a pickup v8. There’s people running ppump swapped powerstrokes making this much power. It’s not out of the realm of possibility once you consider the factors and the fact that Hypermax had whatever they wanted at their disposal. For example look at Gale banks. He can build a Duramax with whatever he wants in a completely custom manner and run tests all day swapping parts and changing factors in a manner that can’t be replicated. A 1200hp IDI isn’t a far fetched idea, the IDI just didn’t catch on as a performance engine like tractor engines or the cummins and it wasnt marketed as such either. It was a decently powered NA V8 diesel that could keep up with a big block and get decent fuel mileage. Cummins jumped onto the pickup scene with a reputation of bullet proof,and at the time high powered engines, coming from a long history of Ag and Trucking. Tractor pulling was popular long before truck pulling ever was and that’s where Hypermax started off
I very much hope one of you can at least get in contact with the current owners, this engine has to be explored 💪…I doubt much of anything is still stock inside …it probably just has forged internals, a slightly more aggressive cam, fire rings, studs and better valve train …stuff that’s very common in modern diesel performance engines…my guess is this motor was WAAAY ahead of its time using what was available in the era it was modified in
190 was respectable in that era. I believe my 90 GMC 3500 454 was like 215 or 225hp. The first Cummins Turbodiesels were rated at 160
the classic saying : "with enough money, anything is possible"
I think if you put 147 psi through an engine of that displacement and you can feed it enough fuel to compensate for that amount of air, it's gonna make that kind of horsepower no problem. Would it live very long at that power level? I don't know. Maybe they did that once, blew it up, then dialed it back, but still, it had to have made a lot of power regardless if it's tearing the block apart repeatedly like that.
Interesting thing is I heard on forums from a guy , that the issue it had was breaking cams and for the life of me couldnt figure out how it could do it. Block flex go figure
@ziptiesnbiasplies ole peg you should dig deep into the piggy bank and grab it would be fcing epic
Sure would be 👌
Great video. Love the 7.3 just scrap my E350 it ran great but rusted out on me. Joy's of living in the rust belt. I wanted to take the engine out but my engine hoist wouldn't lift it.
my question is how much, verified, horsepower can a stock engine take with only injector and turbo upgrades?
My question is could a idi be converted into a direct injection engine🤔
Also a good question haha, money and time will make anything shine 👌
@@highostablegarage just remove the prechamber and make a longer injector would that work maybe I have a 1.9 tdi and v1505 the tdi is di the Kubota is a swirl chamber but acts like a di injector
@@infernoking7504You would need a different cylinder head as well as different pistons.
Trying to run a DI cylinder head with practically flat IDI pistons would make your compression ratio way too high, and the pistons would probably smack the glow plugs and injector nozzles as well.
Yes but you would have to change the cylinder heads, injectors, and pistons at the bare minimum in order to make it work.
With a 6.9 or 7.3 IDI you would need fully custom cylinder heads built in order to continue utilizing the injection pump fuel system. 7.3 powerstroke pistons would probably work in a 7.3 IDI but you might need custom connecting rods.
The Volkswagen AAZ engine is IDI and can be converted into DI by using the pistons, cylinder head, and injectors from a 1Z TDI engine.
i have one of these pumps stashed away for my 6.5l detroit
Time to install that bad boy!
Peg needs to get this truck!!!
Mint👌
Mint 👌👌
147 psi… that’s 10 freaking atmospheres. So that 6.9/7.3 was moving the same amount of air as a 70 liter equivalent stock engine. Jesus😳
1200hp seems like a bit too much, but considering money solves all problems, I’d believe it exists. This wasn’t *just* a one off, this thing was probably reengineered several times over. Perhaps a call or two to Gale Banks would answer some questions.
This will hurt cummins LS fan boys feeling 😂
Definitely should reach out to the owner and make some sweet videos
I hope this video brings out a lot more information on this engine 👌
I had 6.9 in my 1987 ford f250. Fked up and put car oil in it not 15/40 dohhh. Drive it for some time. Then i put a 7.3 idi. Took every thing from 6.9 and put it onto the 7.3 ats intake and 3 inch gartit turbo. Injuction pump. Exsts wire harns. Fly wheel. It was a ripper wish i never got rid of it. Runing about 11 lb of boost. It lived on the hill so i ran red deslie in it. Dule tanks to.
Im a simple man, i see zipties i click
He’s a good feller haha
@@highostablegaragehe's fucking minty, also you are too
@@xboxmaster555 much appreciated 👌
Best idi ever built was made by Detroit diesel and installed in chevy pickup trucks and military humvees. Pretty low hp but spectacular mpg depending on the drucks diff ratio. At 23:1 compression ratio and no turbo they were built for efficiency. They nailed it.
The 6.2/6.5 Detroit is known for having more problems than the 6.9/7.3 international. Head gaskets and whatnot.
Those engines are absolute piles of shit. Oh and you want it to operate at below 32f? Good luck.
@Look_What_You_Did normal maintenance is all they need, when you burn out glow plugs and dont replace them then yeah not gonna start. All 8 glow plugs and number 1 fuel they will fire up in -20. A few bad glow plugs and no they will not. So maintain it properly.
I think Peg should own Dadiesel! Good shit brother💪🏼💪🏼💪🏼
We get 62 hp out of harbor freight generator engines. im sure hypermax got that hp with the custom parts
I’m sure of it too
willards nutz are stuck to the porch
Haha 😂
9:33 also visible on the side view, the huge main girdle
Good eye 👌
Peg gets down with tha good foot. Dd's speed shop.
Ive been doing my own research and you found some things i havnt that was a very good video im working on making a monster idi like that one but its gunna take time ill be using parts from classic diesel designs and some from r&d i know a few people that have lots of experience with this kind of stuff and it will be exciting to finish id love to see what hypermax did ive tryed sending then emails asking about it but all ive gotten is no reply
Glad you like it!
IDI last for fucking ever!
Sure do!
If there’s anyone who knows IDIs it’d be a horse with a wooden leg 😅
Yes sir!
How many minutes did it last before it went bang ?
I think it was only a couple passes, sadly not a lot of info is known during its truck pulling days but we know it kept cracking blocks during its drag racing events.
Considering how little drag picture are know about dadiesel on the web I can only speculate it only operated for 1 or 2 seasons.
Hopefully this video brings out more information about the engine.
So just out of curiosity, what should a feller with a truck and goose neck trailer who is also more than willing to drive and get this truck, yeah what should a feller call that go fund me?
Good god i wish Peg wouldnt sensor on his channel- much more natural
He wouldn’t be able to run a business sadly, RUclips is awful hard on the greasy jokes and language.
I love idis I don’t know why but I do
2003 ps 7.3 is a magical motor
Sure is 👌
@@highostablegarage 10 years of Towing heavy towing 10 years of racing 10 years of hole shots 10 years of donuts 10 years of dumping any and all liquids in the tank you can imagine and it runs the same as it did 10 years ago I can get in this truck do 80 mph for 5 hours with 25,000 lb with the tank filled with motor oil and have zero thoughts concerns or issues whatsoever I can do that everyday all day and it does not break Ain't No Other motor do that
@@highostablegarage and after all that it runs perfect cranks instantly does not smoke does not have excessive Blow by does not tick or not or overheat or nothing absolutely nothing it's more reliable than your old lady and your side chick put together
@@tonydiesel3444 My 12 valve Cummins does that, 500k miles on the odometer when I pulled it from a box truck and dumped it in my pickup. 500k miles of lugging a 26,000lbs Ford F-800 around the country for 23 years. Now it's powering my 1 ton. But I get what you're saying. The 7.3 PS is such a great engine. Since the early 2000's it's been downhill. The new engines make more power, but are expensive and unreliable and won't still be chugging along decades later like the old workhorses are doing.
They rip bud
Zipties is a tryhard. Northerners want to be cool so bad.
FUCKIN MINT!!!
Zip ties fuck yeah buddy!! MURICA 🇺🇸