Thank you for recognizing that. LS swaps are obviously a great way to get modern power but I wanted to stray from the cookie cutter approach. It's nice to be different and get people talking.
@@TurboCamaro67 I'm building an '85 Monte Carlo SS and I'm going with a big block Chevy. I started with a bare '71 LS5 454 block and added a bunch of go fast goodies. Everyone asks, "Why don't you just LS swap it?" I reply, "I did, with an *original* LS motor!". I've always wanted a big block car, so why not?
Floyd Henderson So true, in fact, in 1967 there were about 58,800 straight 6 Camaros rolled off the assembly line. 6's made up about 35% of Camaros made that year. I know you didn't ask, but I thought the numbers were interesting. Thanks for watching!
+1Wild CamaroSS just got back from the first drive... So much fun. It's definitely never ran this well. Couldn't really go WOT as its raining but wow, it's like driving a different car.
I'm diggin it dude I installed one on my c-10 v-8 and I love it...wife has a 62 Biscayne thinking of doing that one as well..straight six...the turbo...that's bad ass man
I usually get sick of looking at the same old cherry red 69 Camaro’s with a big block and and some old guy who thinks he has something unique. But this??? This is cool...because the first gen Camaro actually was a straight six at the very beginning. It’s super awesome and I just love it.
I really appreciate it. I'm definitly not looking for praise but I think that in a humble way, the build speaks for itself. It's nice to know I'll never run into another build like this one on the street or at a show. Thanks again!
Haha, actually replaced the fan a few months ago with a solid plastic summit fan. Bigger, extra blade, more aggressive, lighter and cheap cheap. An obvious cooling bump for sure. Electric fans would be nice but I need a new radiator before I commit to real fans.
No offical numbers but inline guru's smarter than I have estimated around the 400TQ and 400HP range. Perhaps slightly more TQ than HP but I intend to find out for sure some day. Having a thrifty 250 that puts out 400HP makes the project a blast. It's more fun to think the stock engine packed about 145HP, so this build is 275% more power. That's the same as a 300HP 350CI V8 putting out 830HP 😁.
@@TurboCamaro67 I'd love to think so, (I have a 292/Q-Jet/Offy) but other You Tubes with 250s on dynos seem to suggest maybe 320 hp, still a whopping increase over stock. They weren't turbos, though. Have you dyno checked yours yet?
Ian, if you look on my facebook page, you will see a few pictures of the car. I got a TBI system from the junk yard and an offenhauser manifold. Seeing your sniper system on an L-6 is making me think I could do the same, although without the turbo at this point. already have electronic ignition, and a fuel pump kit. People love seeing these old girls as daily drivers! love how smooth an L-6 is!
+Jason Springer I'll take a look for sure! It's a great project and I'm definitly a fan of the recycled TBI systems. I actually planned to go that route until I heard Holley was doing a "budget" system. Someone asked me the other day if I wanted to buy their V8 as an upgrade and I couldn't help but snicker. The L6 is fun, smooth, original and in this case, a real sleeper over its V8 bretheren.
So few people bother with Straight 6's. I think they're cool. I've been trying to locate a second chevy square body pickup but am looking for a short wheel base with a straight 6 and a manual transmission. It's proved to be very difficult as a LOT of them were pulled out and replaced with V8's. *sigh* oh well. I enjoyed watching this video quite a bit!
You're right about the swaps. I get asked often by pretty much everyone why I kept the 6 over swapping in a bigger 8. It's a shame so many have been pulled, and a lot of them junked. At least they could have kept them aside for when we wanted them. I'm not sure where you are but even finding parts for inlines is nearly impossible here. I've got all the parts I need now, but it's been quite a ride. Glad you liked the videos, be sure to check out my others as their are lots of engine ones for future referencing.
I'm in the states down in the Dallas, Texas area. Plenty of trucks. But they're ALL small block v8's. which isn't bad I suppose but i'd really like to find a 6. I've got a 79 Chevy 4x4 with a 350. And I love it to death. I just want to diversify :)
Yeah, the last two car shows I went to displayed exactly 0 Inline 6's. My car doesn't have the best body and isn't clean by any means but It's nice to bring the only 6 to the field. A 6 can definitely bring you diversity, you might just have to go out state to find one.
In a perfect world my car would have come with a 292 but this 250 is the #'s matching block so I stuck with it. If it ever explodes I may seek out a 292 for transplant.
Its the standard 4 barrel 650HP version and works perfectly with boost, once you set it up like in our tuning video. If you don't set it up, you'll observe a significant rich condition as it goes from vaccum to 1psi boost. With it tuned as shown in the tuning video, it provides the proper amount of fuel at the right time and has a usable table to learn on. The default values of 0.1, 8 and 16psi just arn't ranged enough for efficient fueling. Otherwise its rock solid and no other hardware was required. You can actually buy Holley's boost control equipment and the Sniper integrates with it, and already has all the boost control settings to use it on the handheld and desktop software.
Great job. I see it's been a few years, how's it working. I want to get one for my big block for now then move to my straight 6 twin turbo. Any suggestions?
The sniper EFI works great. For a turbo setup like this I highly recommend it. Adjusting the carb and fine tuning the jets was always a bit too tidius for me.
The carb should be rotatable. The linkage and fuel line does require some manipulation to make work but you should be able to mount the carb in the right orientation.
I used 70 overbore Ross forged Pistons with a 12cc dish and a set of Total Seal rings. Pistons cost me about $900 Canadian but I'm guessing they look just as pretty now as they did several years ago. I wouldn't have gone forged if I wasn't turbocharging.
I'm not certain it's a requirement to go forged, but it's insurance for sure. I think if you kept the boost low and we weren't racing it around all the time you'd be fine with cast, but use and compression will play a part. If you have access to some forged Pistons I'd consider it. I bought mine threw Tom Lowe at 12bolt.com and I know he used to carry overstock pistons for these engines.
Hey, good decision! I. Got the EFI system from EFI System Pro and other parts from places like Summit Racing, Amazon and other local auto places. Luckily these cars are popular and their are tons of aftermarket options.
I know this is an older video, but im interested in learning about your turbo set up. Im planning to do it to my 77 camaro because i never seen a straight 6 in person and now i have one. Im mainly curious about boost control.
Thanks for checking out the videos Corey. I don't talk too much about boost control, but I use an external wastegate to have it vent off a desired max boost, and then a cheesy little bleed valve to make finite adjustments on the fly. I monitor the boost amount using the Holley sniper handheld monitor. You've brought this up on the EFI video, but you may see more of what you want on the Turbo setup and piping videos. Enjoy!
@@TurboCamaro67 yeah. I checked the rest of your channel out and seen that you used the holley system for some boost stuff, which is something im not wanting to go through with myself. Im currently on the hunt for an all carbureted blow through set up and cant seem to find much at all other than the intake, exhaust, and turbo itself. On top of this question though, i was curious as to why you have so much turbo plumbing? I figured since the intake and exhaust was on one side you could minimize the piping needed.
@@lilmancc35 I did originally have the setup with a large Holley DP carb with mechanical secondaries. For turbo, with this intake design I decided it was a bit too much work for me to be fiddling with the jets to keep the tune right. I have mild OCD so the weather would change and I'd be pulling the carb apart. As for the piping, I decided to run 3" pipes throughout, including the cold air side. I also went with a behind the grille intercooler and didn't want to hack up the front of the car too much, so I decided to bring the rest of the cold air piping to the passenger side. Their wouldn't have been a lot of room to have a dual side port intercooler and have all hr piping on one side. If I didn't have the intercooler the piping would have been reduced significantly. Check out the intercooler video for more on that.
@@TurboCamaro67 seems to be a really thought out and well done build. I was thinking about doing a blow through set up, but since ive been looking at more and more, i think my best choice would have to be a draw though to keep it simple. Thanks for talking about your set up though. It really helped me understand a blow through set up.
Thanks! I've thought about it. Even without a shroud it stays at 180° no problem though. It's kind of a 'if it ain't broke' situation. But I'd consider it some day.
I see your IAC is high ,I could not get it down ether 20% is the lowest I could adjust to, did you get yours down and if so how.....thanks, by the why great job!!!!
Thanks for watching! I was able to get mine down via adjusting the idle screw and manipulating the AFR table in the config software. Mine usually floats between 5-15% now. I've had the Sniper off a couple times since install so it's also possible I inadvertently fixed a vacuum leak. All of the above are common causes of a higher IAC %.
the transmission works well with the over pressure? i think in the modulator, it works with the depression of the intake mainfold... how could it work in a intake with more pressure than the atomosferic?
Hey Andres, unfortunately this is not my area of expertise, but my. Understanding is that it shifts based on the amount of vaccum. Mine likely works well because I built the cam and turbo with the intention of coming into boost at higher speeds. That being said, if I hammer the accelerator while in a low speed, it does shift under boost but it does so higher in the RPM range than ideal. It's not terrible but it does work. I installed a shift kit that allows me to manually shift if needed, but I haven't bothered with that much.
@@TurboCamaro67 Nice video and project. I think the purpose of the modulator valve is to soften (modulate) the shifts, which without it would be harsh. And I think the purpose of the shift kit is to make the shifts hard (so, faster). The shift points are managed by the throttle valve, so the further open it is, the later the upshift. Is the trans still the original Powerglide? I've had great service from them, and had one behind a 292 in my 53 Pontiac. WOT upshifts happened at 4400 RPM, which, in the earlier days of running that combination, happened often. More mature now, with a 700R4 behind the 292, my use of WOT is rare.
Yea listen if I could a minute if you apply some heat to your threaded rod you'll find it's less likely to break and because the Sniper base is identical to a Holley 4 carburetor a basic universal TH-350 trans bracket from Transdapt is all you need for your transmission kick down cable to work properly ..But wow you should have one very strong running 6 especially because most ALL 6 cly engines have such a long broad Torque curve this should really run sweet ..
You've given me motivation too turbo my hemi 245 straight six. It only makes 165hp stock. The sniper carb is recommended for 250hp+. Would this car run the car aspirated or does it have to be boosted and make over 250hp? If someone could answer I'd appreciate it so much
I'm glad to hear your pushing forward with your 6! If we're talking about the 2 barrel Holley Sniper 2300 series EFI, it is rated UP TO 350HP. It just means the flow of fuel/air will not likely allow you to make more than 350HP. If the sensors detect less required flow it will simply give you less. The system is more than happy to work in the 30-50% capacity and only make 165HP. It's actually fantastic as you could do some cam and head upgrades and won't have to worry about maxing out your EFIs capacity.
Hello! Are you still using third system? Somebody told me these auto tune efi kits doesn't work with inline engines (6 inline specially). I have this same engine (not turbo) and thinking to change my Holley quadrijet to a sniper.
Hey, these engines work just fine with the throttle body EFI systems as they are pretty much a direct replacement for a carb. They definitely work and can make your engine more efficient.
@@TurboCamaro67 from what I’ve seen you can run low boost on the regular one. I am trying to plan for later down the road. I have an f100 with a 302 and later on I may want to do a turbo setup but nothing crazy.
I have a stock 250, do you think I'd have issues with the sniper since horse power is only around 150? I plan to build it up, but overtime and I dont want to spend money on 2 barrel set up if I plan to build it up.
I'm confident you could take the 4bbl Sniper and make it work on a stock 250. Keep in mind, it would be almost impossible to build up a naturally aspirated 250 (no turbo or supercharger) to push out more than 350hp, which is the limit for the 2bbl Sniper. However if you are 100% confident you intend to apply forced induction of some kind and may break that 350hp threshold (similar to what I've done) then you'd want to invest in the 4bbl Sniper and it'll just self tune itself and be very underworked, which isn't nessasarily a bad thing, just less efficient for your dollars.
Interested in doing a sniper efi on my in-line 6, 60 Falcon. It’s proving difficult because I wanted to do a 2 barrel sniper and I can’t find an intake manifold for a 2bbl carb (trying to do a fuel efficient daily build). Do you have any tips or tricks for installation?
Michael Denham I may, which 6 are we talking about? The 144? I'm not as knowledgeable with Ford's but have researched all of the 6's for interchangeability. I will help the best I can.
Michael Denham I know this might sound a little hacky but you can make a custom carb adapter out of a block of wood. I did this on the inline 4 2.5 in my skid steer. I did it with a piece of hard wood and there are aftermarket wood spacers out there that are a pressed wood. I did show it in one of my videos on my channel. Hope this helps.
Find or build 4bbl to 2bbl adapter. Yea wood will actually work, but ethanol fuels will eventually eat it up. Use aluminum or plastic. A thick plastic cutting board makes a nice 1/2"+ spacer.
Hello sir! You are a inline 6 guru so I want to ask.. what would be the best carburetor for an inline 6 if all you want is reliability and easy maintenance, not interested at all in horsepower, just something that fires up every time and takes a reasonable amount of gas ⛽️ thanks, i am from Costa Rica 🇨🇷
Hey, I don't think I'd call myself a guru. I've been through plenty with my six, but haven't done a lot of carb testing. The Rochester monojet mine came with worked well for a stock setup, never had any issues with it but obviously not for any power. If it were me, I'd contact Tom Lowe at 12bolt.com and provide your setup and he can steer you to your best bet. He has a bunch of options, used and new that will get you running.
It's a Spectre carb hat (plenum) and some Summit branded cone air filter. The pipe kit is from eBay. It came with most of the silicone connectors. I'm not sure where I ordered the hat from but it's one of the cheapest ones I could get that didn't look like it was glued together in someone's back yard. I'm actually still unhappy with the price of the hats, it's a cornered market. The intercooler is eBay too and has its own video on my channel.
Hey, funny you ask. I found it impossible to source a plug for that exact hole size. I ended up with a firewall wiring grommit plug (has a hole to pass wiring through) as I couldn't find a solid one. I then used black silicone firewall sealer to plug it up and it's held for years. You could Probsbly plug it with Permatex Ultra Black too. I don't dare take it out to measure the hole size though. If you know the hole diameter I can try to look for you though.
i have a ton of questions. i have an 84 gn 3.8 turbo and wanna go holley blow through. stock boost was 13-15 normally. i dont know where to set the timing to start, total timing or any of that. im going to blow through a quadrajet efi for the small ports. this is for an off road commando. can you help?
Unfortunately your not running the same engine or EFI system that I have so my research isn't going to apply to everything. However, I'd lookup your stock initial and full timings and set those. Let's say it's 12° initial and total without boost is 34°. Now, with each degree of boost you'll want to drop at least 1° of timing. So, if you do 34° total, and 14psi boost, you'll retard 14° to a total of 20°. A lot will depend on type of fuel, cam, turbo, restrictions but that should get you running and not exploding. I'd confirm the stock engine timings (from factory) before you settle on any numbers.
Also, I did a video on controlling timing without a fancy electronic distributor. You may not want to use that method, but that video, combined with my other video on setting up the sniper for timing and fuel graphs might give you some ideas.
@@TurboCamaro67 i will chase your channel. i was going to do hei, but i will use theirs. i dont want to blow my engine up. you arent using holley efi? i saw you set it up progressive and that got me to thinking about the quadrajet style. like yours only smaller front and large rear.
@@TheRowdyJ yeah my unit is the 4 barrel Holley Sniper EFI. They make a 2 barrel model as well if you don't plan to be as aggressive with boost and all that.
@@TurboCamaro67 well i have an offenhauser dual port intake. it divides front and rear barrels not left and right. basically 2 single planes stacked on top of the other. each plane has its own runner and there is a difference in size difference about the same spread as a qjet. when youre cruising, you suck very little gas. has excellent low end. but when you get on it the rear opens up and it has great mid range. i wanna set it up with the qjet efi so when i cruise, it sips gas, but when i nail it the boost kicks and itll allow me to merge in the hiway or get out if the mud. its going in a jeep.
+ralph Smith it's an Offenhauser 5416 with 4 barrel adapter. It fit fairly easy but required a 1 inch spacer for the linkages to clear the head. Ive done a manifolds video, and a video assembing the engine where I discuss the intake and fitment in depth. Thanks for watching!
Yeah the prices are crazy. I got mine off eBay like 8 years ago now and it was $180US or something. Seemed expensive then. I've since purchased the SPA Turbo Exhaust manifold and it ran me about $380US. It isn't cheap to build up these engines that's for sure.
+tallcamaroguy Good tip, I had the throttle blades closed too far causing the high reading. These videos were taken right on first start so things have been smoothed out quite a bit since. Thanks for watching!
ha awesome! by "subbed" i meant i subscribed to your channel. haha. but thats cool! My Cutlass needs a sub or two. :) but Sniper EFI is what I'm going to do next!
Yeah, I think it's more of a "good better best" situation. The carb was good, this setup. Is better but direct port injection would be the best option. However I'm working on a family budget in the "better" category. It's better than the single and 4bbl carburetor in every way.
Very cool... So much more interesting than another LS build....
rlovell383 thank you, that's the motivation for the whole project right there.
Amen !
yup✌🍻
Ls is good tho
@@Thatcressidaguy it is but it’s gotten kind of boring and predictable.
I'm an inline ford guy but I love the build. Great job.
+Joe Ludlow thanks Joe!
Would love to see that setup on Ford’s 240/300 inline-6 truck engines. Had a 1967 F-100 with 240 and three on the tree
I like the turbo inline 6! Fun way to give it some pep. Around 400hp is amazing compared to what it was. Cheers.
Great to see someone with enough originality and vision to forgo the same old "LS swap everything" mindset.
Thank you for recognizing that. LS swaps are obviously a great way to get modern power but I wanted to stray from the cookie cutter approach. It's nice to be different and get people talking.
@@TurboCamaro67 I'm building an '85 Monte Carlo SS and I'm going with a big block Chevy. I started with a bare '71 LS5 454 block and added a bunch of go fast goodies. Everyone asks, "Why don't you just LS swap it?" I reply, "I did, with an *original* LS motor!". I've always wanted a big block car, so why not?
This is very cool ! I like to see these late great in lines get some love and attention. Unique TORQUEEE !!! thanks
Awesome! A lot of people don't know Cameros came with 6 cylinders
Floyd Henderson So true, in fact, in 1967 there were about 58,800 straight 6 Camaros rolled off the assembly line. 6's made up about 35% of Camaros made that year. I know you didn't ask, but I thought the numbers were interesting. Thanks for watching!
Congrats on the install!!! Nice job now let the fun begin!!!
+1Wild CamaroSS just got back from the first drive... So much fun. It's definitely never ran this well. Couldn't really go WOT as its raining but wow, it's like driving a different car.
I'm diggin it dude I installed one on my c-10 v-8 and I love it...wife has a 62 Biscayne thinking of doing that one as well..straight six...the turbo...that's bad ass man
That's great! The Biscayne would be great too. Thanks for checking the turbo six out.
I usually get sick of looking at the same old cherry red 69 Camaro’s with a big block and and some old guy who thinks he has something unique. But this??? This is cool...because the first gen Camaro actually was a straight six at the very beginning. It’s super awesome and I just love it.
I really appreciate it. I'm definitly not looking for praise but I think that in a humble way, the build speaks for itself. It's nice to know I'll never run into another build like this one on the street or at a show. Thanks again!
great video, very informative. I'm considering getting one of these systems. after watching this i want one even more 😊
+airlite44 Thanks for watching! I'm very happy with the system so far. Let me know if you have any questions and I'll do my best to help.
Turbo Camaro Great thanks!
Bro, you are awesome. Thx for the video!
No problem, glad you liked it!
Great video on the EFI- well done. Just a question : is your motor stock and did you run a stock holley 600 carb on it previously ? Thanks Ray
yeah
250 turbo! nice!
I'm building a 92 camaro rs with a 383 I enjoy you videos keep it up
+matthew formwalt thanks Matt! Lots of videos to come!
So cool, please change that solid fan, you need a clutch fan or a couple of electric fans
Haha, actually replaced the fan a few months ago with a solid plastic summit fan. Bigger, extra blade, more aggressive, lighter and cheap cheap. An obvious cooling bump for sure. Electric fans would be nice but I need a new radiator before I commit to real fans.
400 whp out of a turbocharged gm 250 or 292 inline 6 engine is grande!!
Love the diversity of a turbo 6. Any ideas what you have powerwise?
No offical numbers but inline guru's smarter than I have estimated around the 400TQ and 400HP range. Perhaps slightly more TQ than HP but I intend to find out for sure some day. Having a thrifty 250 that puts out 400HP makes the project a blast. It's more fun to think the stock engine packed about 145HP, so this build is 275% more power. That's the same as a 300HP 350CI V8 putting out 830HP 😁.
@@TurboCamaro67 I'd love to think so, (I have a 292/Q-Jet/Offy) but other You Tubes with 250s on dynos seem to suggest maybe 320 hp, still a whopping increase over stock. They weren't turbos, though. Have you dyno checked yours yet?
Nice job! Hope to do the same on my '69 camaro, with the 230 thrift. (no turbo)
+Jason Springer good idea Jason! We need more embracing of the inlines!
Ian, if you look on my facebook page, you will see a few pictures of the car. I got a TBI system from the junk yard and an offenhauser manifold. Seeing your sniper system on an L-6 is making me think I could do the same, although without the turbo at this point. already have electronic ignition, and a fuel pump kit. People love seeing these old girls as daily drivers! love how smooth an L-6 is!
+Jason Springer I'll take a look for sure! It's a great project and I'm definitly a fan of the recycled TBI systems. I actually planned to go that route until I heard Holley was doing a "budget" system. Someone asked me the other day if I wanted to buy their V8 as an upgrade and I couldn't help but snicker. The L6 is fun, smooth, original and in this case, a real sleeper over its V8 bretheren.
So few people bother with Straight 6's. I think they're cool. I've been trying to locate a second chevy square body pickup but am looking for a short wheel base with a straight 6 and a manual transmission. It's proved to be very difficult as a LOT of them were pulled out and replaced with V8's. *sigh* oh well. I enjoyed watching this video quite a bit!
You're right about the swaps. I get asked often by pretty much everyone why I kept the 6 over swapping in a bigger 8. It's a shame so many have been pulled, and a lot of them junked. At least they could have kept them aside for when we wanted them. I'm not sure where you are but even finding parts for inlines is nearly impossible here. I've got all the parts I need now, but it's been quite a ride. Glad you liked the videos, be sure to check out my others as their are lots of engine ones for future referencing.
I'm in the states down in the Dallas, Texas area. Plenty of trucks. But they're ALL small block v8's. which isn't bad I suppose but i'd really like to find a 6. I've got a 79 Chevy 4x4 with a 350. And I love it to death. I just want to diversify :)
Yeah, the last two car shows I went to displayed exactly 0 Inline 6's. My car doesn't have the best body and isn't clean by any means but It's nice to bring the only 6 to the field. A 6 can definitely bring you diversity, you might just have to go out state to find one.
Too bad you weren't able to do this with the same year Pontiac OHC Sprint 6. Still enjoying this.
Out of curiosity why not do a 292 turbo I6? Bad ass and unique btw. Has made me go full in on doing the same to 64 flat glass shorty chevy van
In a perfect world my car would have come with a 292 but this 250 is the #'s matching block so I stuck with it. If it ever explodes I may seek out a 292 for transplant.
@@TurboCamaro67 I hear ya on that. Super cool build, great job!
Nice build 💪
Thanks!
How’s the drivability of this set up? Boost with sniper EFI that is.
very nice
How well does that throttle body efi work with boost? Is it a special model or is it just the standard sniper efi?
Much appreciated thanks!
Its the standard 4 barrel 650HP version and works perfectly with boost, once you set it up like in our tuning video. If you don't set it up, you'll observe a significant rich condition as it goes from vaccum to 1psi boost. With it tuned as shown in the tuning video, it provides the proper amount of fuel at the right time and has a usable table to learn on. The default values of 0.1, 8 and 16psi just arn't ranged enough for efficient fueling. Otherwise its rock solid and no other hardware was required. You can actually buy Holley's boost control equipment and the Sniper integrates with it, and already has all the boost control settings to use it on the handheld and desktop software.
Great job. I see it's been a few years, how's it working. I want to get one for my big block for now then move to my straight 6 twin turbo. Any suggestions?
The sniper EFI works great. For a turbo setup like this I highly recommend it. Adjusting the carb and fine tuning the jets was always a bit too tidius for me.
fyi y'all should not use teflon tape on cast iron connections but use pipe thread compound as teflon can sometimes crack cast iron
How were you able to get the holley carb to sit the right way? Mine sits sideways.
The carb should be rotatable. The linkage and fuel line does require some manipulation to make work but you should be able to mount the carb in the right orientation.
This is awesome. Working on doing a similar build on my 68 292 c20. Do you have stock or aftermarket pistons/ring?
I used 70 overbore Ross forged Pistons with a 12cc dish and a set of Total Seal rings. Pistons cost me about $900 Canadian but I'm guessing they look just as pretty now as they did several years ago. I wouldn't have gone forged if I wasn't turbocharging.
@@TurboCamaro67 hmm ya might need to go for it since I do plan on running a turbo, thanks for the Info
I'm not certain it's a requirement to go forged, but it's insurance for sure. I think if you kept the boost low and we weren't racing it around all the time you'd be fine with cast, but use and compression will play a part. If you have access to some forged Pistons I'd consider it. I bought mine threw Tom Lowe at 12bolt.com and I know he used to carry overstock pistons for these engines.
I’m buying a 67 camaro Friday and was wondering what we’re the first improvements you made and where are you getting parts?
Hey, good decision! I. Got the EFI system from EFI System Pro and other parts from places like Summit Racing, Amazon and other local auto places. Luckily these cars are popular and their are tons of aftermarket options.
I know this is an older video, but im interested in learning about your turbo set up. Im planning to do it to my 77 camaro because i never seen a straight 6 in person and now i have one. Im mainly curious about boost control.
Thanks for checking out the videos Corey. I don't talk too much about boost control, but I use an external wastegate to have it vent off a desired max boost, and then a cheesy little bleed valve to make finite adjustments on the fly. I monitor the boost amount using the Holley sniper handheld monitor. You've brought this up on the EFI video, but you may see more of what you want on the Turbo setup and piping videos. Enjoy!
@@TurboCamaro67 yeah. I checked the rest of your channel out and seen that you used the holley system for some boost stuff, which is something im not wanting to go through with myself. Im currently on the hunt for an all carbureted blow through set up and cant seem to find much at all other than the intake, exhaust, and turbo itself. On top of this question though, i was curious as to why you have so much turbo plumbing? I figured since the intake and exhaust was on one side you could minimize the piping needed.
@@lilmancc35 I did originally have the setup with a large Holley DP carb with mechanical secondaries. For turbo, with this intake design I decided it was a bit too much work for me to be fiddling with the jets to keep the tune right. I have mild OCD so the weather would change and I'd be pulling the carb apart.
As for the piping, I decided to run 3" pipes throughout, including the cold air side. I also went with a behind the grille intercooler and didn't want to hack up the front of the car too much, so I decided to bring the rest of the cold air piping to the passenger side. Their wouldn't have been a lot of room to have a dual side port intercooler and have all hr piping on one side. If I didn't have the intercooler the piping would have been reduced significantly. Check out the intercooler video for more on that.
@@TurboCamaro67 seems to be a really thought out and well done build. I was thinking about doing a blow through set up, but since ive been looking at more and more, i think my best choice would have to be a draw though to keep it simple. Thanks for talking about your set up though. It really helped me understand a blow through set up.
No problem, funny enough I haven't researched doing a draw threw setup on one of these motors. Good luck with your build.
I lov the details n ur work ur mind is not cluttered at all. Hav ya thought abt dumping that straight cooling fan for electric fans??
Thanks! I've thought about it. Even without a shroud it stays at 180° no problem though. It's kind of a 'if it ain't broke' situation. But I'd consider it some day.
I see your IAC is high ,I could not get it down ether 20% is the lowest I could adjust to, did you get yours down and if so how.....thanks, by the why great job!!!!
Thanks for watching! I was able to get mine down via adjusting the idle screw and manipulating the AFR table in the config software. Mine usually floats between 5-15% now. I've had the Sniper off a couple times since install so it's also possible I inadvertently fixed a vacuum leak. All of the above are common causes of a higher IAC %.
the transmission works well with the over pressure? i think in the modulator, it works with the depression of the intake mainfold... how could it work in a intake with more pressure than the atomosferic?
Hey Andres, unfortunately this is not my area of expertise, but my. Understanding is that it shifts based on the amount of vaccum. Mine likely works well because I built the cam and turbo with the intention of coming into boost at higher speeds. That being said, if I hammer the accelerator while in a low speed, it does shift under boost but it does so higher in the RPM range than ideal. It's not terrible but it does work. I installed a shift kit that allows me to manually shift if needed, but I haven't bothered with that much.
@@TurboCamaro67 OK!! Thanks for your answer! :)
@@TurboCamaro67 Nice video and project. I think the purpose of the modulator valve is to soften (modulate) the shifts, which without it would be harsh. And I think the purpose of the shift kit is to make the shifts hard (so, faster). The shift points are managed by the throttle valve, so the further open it is, the later the upshift. Is the trans still the original Powerglide? I've had great service from them, and had one behind a 292 in my 53 Pontiac. WOT upshifts happened at 4400 RPM, which, in the earlier days of running that combination, happened often. More mature now, with a 700R4 behind the 292, my use of WOT is rare.
Yea listen if I could a minute if you apply some heat to your threaded rod you'll find it's less likely to break and because the Sniper base is identical to a Holley 4 carburetor a basic universal TH-350 trans bracket from Transdapt is all you need for your transmission kick down cable to work properly ..But wow you should have one very strong running 6 especially because most ALL 6 cly engines have such a long broad Torque curve this should really run sweet ..
You've given me motivation too turbo my hemi 245 straight six. It only makes 165hp stock. The sniper carb is recommended for 250hp+. Would this car run the car aspirated or does it have to be boosted and make over 250hp? If someone could answer I'd appreciate it so much
I'm glad to hear your pushing forward with your 6! If we're talking about the 2 barrel Holley Sniper 2300 series EFI, it is rated UP TO 350HP. It just means the flow of fuel/air will not likely allow you to make more than 350HP. If the sensors detect less required flow it will simply give you less. The system is more than happy to work in the 30-50% capacity and only make 165HP. It's actually fantastic as you could do some cam and head upgrades and won't have to worry about maxing out your EFIs capacity.
Hello! Are you still using third system? Somebody told me these auto tune efi kits doesn't work with inline engines (6 inline specially). I have this same engine (not turbo) and thinking to change my Holley quadrijet to a sniper.
Hey, these engines work just fine with the throttle body EFI systems as they are pretty much a direct replacement for a carb. They definitely work and can make your engine more efficient.
Is this the regular sniper kit or the super sniper?
Regular sniper but it's the Master Kit.
@@TurboCamaro67 from what I’ve seen you can run low boost on the regular one. I am trying to plan for later down the road. I have an f100 with a 302 and later on I may want to do a turbo setup but nothing crazy.
I have a stock 250, do you think I'd have issues with the sniper since horse power is only around 150? I plan to build it up, but overtime and I dont want to spend money on 2 barrel set up if I plan to build it up.
I'm confident you could take the 4bbl Sniper and make it work on a stock 250. Keep in mind, it would be almost impossible to build up a naturally aspirated 250 (no turbo or supercharger) to push out more than 350hp, which is the limit for the 2bbl Sniper. However if you are 100% confident you intend to apply forced induction of some kind and may break that 350hp threshold (similar to what I've done) then you'd want to invest in the 4bbl Sniper and it'll just self tune itself and be very underworked, which isn't nessasarily a bad thing, just less efficient for your dollars.
hola, yo pensé que solo se podía poner turbo con los super sniper
Hey Jama, el Super Snuper está configurado para potenciar de inmediato, pero el Sniper EFI normal es capaz, pero requiere un ajuste de software.
250c.i. turbo? All B darn. Nice efi setup
Yes indeed. Thanks for watching!
Did you have to change the map sensor for boost?
Nope... Its capable of 14psi out of the box, but you do need to setup the fuel graphs for boost.
@@TurboCamaro67 Would that be the same for a terminator setup? Which is basically same as sniper with external computer?
The inline six cylinder engine has plenty of potential to make more horsepower just like any engine
Interested in doing a sniper efi on my in-line 6, 60 Falcon. It’s proving difficult because I wanted to do a 2 barrel sniper and I can’t find an intake manifold for a 2bbl carb (trying to do a fuel efficient daily build). Do you have any tips or tricks for installation?
Michael Denham I may, which 6 are we talking about? The 144? I'm not as knowledgeable with Ford's but have researched all of the 6's for interchangeability. I will help the best I can.
Michael Denham I know this might sound a little hacky but you can make a custom carb adapter out of a block of wood. I did this on the inline 4 2.5 in my skid steer. I did it with a piece of hard wood and there are aftermarket wood spacers out there that are a pressed wood. I did show it in one of my videos on my channel. Hope this helps.
Find or build 4bbl to 2bbl adapter. Yea wood will actually work, but ethanol fuels will eventually eat it up. Use aluminum or plastic. A thick plastic cutting board makes a nice 1/2"+ spacer.
New videos coming soon?
Hello sir! You are a inline 6 guru so I want to ask.. what would be the best carburetor for an inline 6 if all you want is reliability and easy maintenance, not interested at all in horsepower, just something that fires up every time and takes a reasonable amount of gas ⛽️ thanks, i am from Costa Rica 🇨🇷
Hey, I don't think I'd call myself a guru. I've been through plenty with my six, but haven't done a lot of carb testing. The Rochester monojet mine came with worked well for a stock setup, never had any issues with it but obviously not for any power. If it were me, I'd contact Tom Lowe at 12bolt.com and provide your setup and he can steer you to your best bet. He has a bunch of options, used and new that will get you running.
Where’s you get that cold air intake setup?
It's a Spectre carb hat (plenum) and some Summit branded cone air filter. The pipe kit is from eBay. It came with most of the silicone connectors. I'm not sure where I ordered the hat from but it's one of the cheapest ones I could get that didn't look like it was glued together in someone's back yard. I'm actually still unhappy with the price of the hats, it's a cornered market. The intercooler is eBay too and has its own video on my channel.
@@TurboCamaro67 yea I’ve watched the turbo setup video. I wanted to get the setup you had prior to the turbo and intercooler
Sounds good... The original hat and filter was a nice upgrade on the carb.
I know this is old but do you have a part number for the rubber plug that you have on the valve cover right below the oil fill cap
Hey, funny you ask. I found it impossible to source a plug for that exact hole size. I ended up with a firewall wiring grommit plug (has a hole to pass wiring through) as I couldn't find a solid one. I then used black silicone firewall sealer to plug it up and it's held for years. You could Probsbly plug it with Permatex Ultra Black too. I don't dare take it out to measure the hole size though. If you know the hole diameter I can try to look for you though.
@@TurboCamaro67 ok thank you lol I'm in the same boat, they don't make a flush plug for that size! Ill have to do what you did I guess
Hah, I have to think some random company makes the plug but they didn't have it on my island. I just worked with what was available.
i have a ton of questions. i have an 84 gn 3.8 turbo and wanna go holley blow through. stock boost was 13-15 normally. i dont know where to set the timing to start, total timing or any of that.
im going to blow through a quadrajet efi for the small ports. this is for an off road commando.
can you help?
Unfortunately your not running the same engine or EFI system that I have so my research isn't going to apply to everything. However, I'd lookup your stock initial and full timings and set those. Let's say it's 12° initial and total without boost is 34°. Now, with each degree of boost you'll want to drop at least 1° of timing. So, if you do 34° total, and 14psi boost, you'll retard 14° to a total of 20°. A lot will depend on type of fuel, cam, turbo, restrictions but that should get you running and not exploding. I'd confirm the stock engine timings (from factory) before you settle on any numbers.
Also, I did a video on controlling timing without a fancy electronic distributor. You may not want to use that method, but that video, combined with my other video on setting up the sniper for timing and fuel graphs might give you some ideas.
@@TurboCamaro67 i will chase your channel. i was going to do hei, but i will use theirs. i dont want to blow my engine up.
you arent using holley efi?
i saw you set it up progressive and that got me to thinking about the quadrajet style. like yours only smaller front and large rear.
@@TheRowdyJ yeah my unit is the 4 barrel Holley Sniper EFI. They make a 2 barrel model as well if you don't plan to be as aggressive with boost and all that.
@@TurboCamaro67 well i have an offenhauser dual port intake. it divides front and rear barrels not left and right. basically 2 single planes stacked on top of the other. each plane has its own runner and there is a difference in size difference about the same spread as a qjet. when youre cruising, you suck very little gas. has excellent low end. but when you get on it the rear opens up and it has great mid range. i wanna set it up with the qjet efi so when i cruise, it sips gas, but when i nail it the boost kicks and itll allow me to merge in the hiway or get out if the mud. its going in a jeep.
How did you get that carburetor to fit what kind of intake is that ?
+ralph Smith it's an Offenhauser 5416 with 4 barrel adapter. It fit fairly easy but required a 1 inch spacer for the linkages to clear the head. Ive done a manifolds video, and a video assembing the engine where I discuss the intake and fitment in depth. Thanks for watching!
"I haven't decided yet"
I want that Offy intake, I'm just not ready to take out a 2nd mortgage on my house to buy one 😪.
Yeah the prices are crazy. I got mine off eBay like 8 years ago now and it was $180US or something. Seemed expensive then. I've since purchased the SPA Turbo Exhaust manifold and it ran me about $380US. It isn't cheap to build up these engines that's for sure.
Do the sniper support boost?
Sure does, check our my other videos configuring boost and driving in boost.
Is that a super sniper?
Your iac should be at 0 above 100 degrees unless you are holding the brake while in gear
+tallcamaroguy Good tip, I had the throttle blades closed too far causing the high reading. These videos were taken right on first start so things have been smoothed out quite a bit since. Thanks for watching!
What's the horse power
The educated guess is about 400HP and maybe a little over that in torque. Getting the official numbers on a dyno is on the agenda.
Is that a stock GM I6 exhaust manifold or a aftermarket exhaust manifold???
It's the exhaust manifold out of a 292 Inline 6. Has a 2½" outlet instead of the 250's 2¼".
subbed!
+Cody Shell Haha, 2 x 10" Pioneer 300w RMS subs In solid box. Run by a Cadence 650w Amp. Nothing crazy by any means but I like the thump.
ha awesome! by "subbed" i meant i subscribed to your channel. haha. but thats cool! My Cutlass needs a sub or two. :) but Sniper EFI is what I'm going to do next!
Use liquid or paste thread sealant in automotive applications, not tape!
Why? (I've used both, because someone gave me a tube of the paste. But mostly tape.)
You cannot get precise fuel metering with that intake cut it up and throw it in the garbage,
Yeah, I think it's more of a "good better best" situation. The carb was good, this setup. Is better but direct port injection would be the best option. However I'm working on a family budget in the "better" category. It's better than the single and 4bbl carburetor in every way.
Isn't' "Camaro" some sort of facial makeup for ... well, you figure it out.