tomcowle Posted March 30, 2009 Report Share Posted March 30, 2009 Here are some engine pictures of a 1991 S-10 I did and then re-did this winter. Owner originally wanted a single turbo then switched gears then wanted a twin-turbo. There are a few things to revise (radiator hose, powdercoat coldside intake and tune) but it started and ran under its own power this weekend. Quick Specs: 406" chevy GMPP "Fastburn" 210cc heads Steel crank H-beams JE slugs Blow-thru carb 60mm turbos Turbo 400 trans 9" ford ladderbar rear suspension 315 mt drag radials Street truck, hoping it runs 13.0's or better...lol Version 1.0 mock-up for single turbo http://i732.photobucket.com/albums/ww328/tomcowle/earlyturboheaders2.jpg Version 2.0 mock-up before coating http://i732.photobucket.com/albums/ww328/tomcowle/jimtwin.jpg Version 2.1 start-up config http://i732.photobucket.com/albums/ww328/tomcowle/jimturbotwin.jpg Quote Link to comment Share on other sites More sharing options...
John Bruh Posted March 30, 2009 Report Share Posted March 30, 2009 1. redo intake piping 2. add another bov to second piping 3. powder coat everything 4. profit 5. /thread Quote Link to comment Share on other sites More sharing options...
Guest 614Streets Posted March 30, 2009 Report Share Posted March 30, 2009 I like those valve covers Quote Link to comment Share on other sites More sharing options...
Qtr_pndr Posted March 30, 2009 Report Share Posted March 30, 2009 wtf kind of manifolds are those Quote Link to comment Share on other sites More sharing options...
Mopar Posted March 30, 2009 Report Share Posted March 30, 2009 +1 on redo'ing the intake pipe. The merge needs to be lower. Need a straight shot into the carb for the best distribution between cylinders. Other than that it looks good. Quote Link to comment Share on other sites More sharing options...
Rally Pat Posted March 30, 2009 Report Share Posted March 30, 2009 Charge cooling? Quote Link to comment Share on other sites More sharing options...
tomcowle Posted March 30, 2009 Author Report Share Posted March 30, 2009 wtf kind of manifolds are those They are copies of a set I saw at the races in Maryland, basically flipped S-10 headers with a funky collector. Quote Link to comment Share on other sites More sharing options...
tomcowle Posted March 30, 2009 Author Report Share Posted March 30, 2009 +1 on redo'ing the intake pipe. The merge needs to be lower. Need a straight shot into the carb for the best distribution between cylinders. Other than that it looks good. What? Quote Link to comment Share on other sites More sharing options...
Guest Removed Posted March 30, 2009 Report Share Posted March 30, 2009 +1 on redo'ing the intake pipe. The merge needs to be lower. Need a straight shot into the carb for the best distribution between cylinders. Other than that it looks good. plus 1..to many bends to close to the carb. Quote Link to comment Share on other sites More sharing options...
Ramsey Posted March 30, 2009 Report Share Posted March 30, 2009 No intercooler? Quote Link to comment Share on other sites More sharing options...
John Bruh Posted March 30, 2009 Report Share Posted March 30, 2009 No intercooler? like the early 90s diesel trucks. it's retarded but people still do it. a intercooler on that would gain 100hp min. Quote Link to comment Share on other sites More sharing options...
Mopar Posted March 30, 2009 Report Share Posted March 30, 2009 What? Where your turbo outlets meet on the intake pipe, they need to be as far from the carb as possible. If you don't, the motor will have issues with proper fuel/air distribution between the cylinders. In other words you could possibly have a lean condition on one bank, and rich on the other. I saw this issue first hand on a procharged mustang on the dyno. He had the intake pipe slightly off to one side, and it caused nothing but problems. Just trying to save you the headache he went through trying to figure out what was going on. Quote Link to comment Share on other sites More sharing options...
Ramsey Posted March 30, 2009 Report Share Posted March 30, 2009 like the early 90s diesel trucks. it's retarded but people still do it. a intercooler on that would gain 100hp min. oh. Quote Link to comment Share on other sites More sharing options...
tomcowle Posted March 30, 2009 Author Report Share Posted March 30, 2009 1. redo intake piping 2. add another bov to second piping 3. powder coat everything 4. profit 5. /thread The intake piping in the 3rd picture is pretty much the way its going to be other than adding the BOV. One large TIAL bov is being used, centered before the hat. Owner wanted to hear the truck run and drive it a little prior to him leaving the area for a business trip. (made 14psi of boost) I do my own powdercoating, so coating is not an issue Quote Link to comment Share on other sites More sharing options...
Guest Removed Posted March 30, 2009 Report Share Posted March 30, 2009 Where your turbo outlets meet on the intake pipe, they need to be as far from the carb as possible. If you don't, the motor will have issues with proper fuel/air distribution between the cylinders. In other words you could possibly have a lean condition on one bank, and rich on the other. I saw this issue first hand on a procharged mustang on the dyno. He had the intake pipe slightly off to one side, and it caused nothing but problems. Just trying to save you the headache he went through trying to figure out what was going on. johns car Quote Link to comment Share on other sites More sharing options...
tomcowle Posted March 30, 2009 Author Report Share Posted March 30, 2009 So your saying it won't run properly? I did this set-up as well, it seems to be running fine. http://i732.photobucket.com/albums/ww328/tomcowle/driversidefinished10.jpg Quote Link to comment Share on other sites More sharing options...
Browning Posted March 30, 2009 Report Share Posted March 30, 2009 I always assumed both intake pipes needed to be the exact same Quote Link to comment Share on other sites More sharing options...
Rally Pat Posted March 30, 2009 Report Share Posted March 30, 2009 Again....charge cooling? Quote Link to comment Share on other sites More sharing options...
Farkas Posted March 30, 2009 Report Share Posted March 30, 2009 I bet those run great Quote Link to comment Share on other sites More sharing options...
tomcowle Posted March 30, 2009 Author Report Share Posted March 30, 2009 I always assumed both intake pipes needed to be the exact same Your engine doesn't know any difference. I did some SUPERSTOCK pulling tractor stuff a few years ago and there really is no great way and no need to make equall legnth pipes, these tractors are all in the 75psi and higher boost levels with 2 and 3 turbos. Quote Link to comment Share on other sites More sharing options...
tomcowle Posted March 30, 2009 Author Report Share Posted March 30, 2009 Again....charge cooling? Just a little meth, boost proportionate. Quote Link to comment Share on other sites More sharing options...
tomcowle Posted March 30, 2009 Author Report Share Posted March 30, 2009 I bet those run great The single set-up run's 5.60's in the 1/8 mile at 3500lbs. Not bad in my book. Quote Link to comment Share on other sites More sharing options...
THE BUCKET Posted March 30, 2009 Report Share Posted March 30, 2009 bill lutz ran no intercooler on a blow thru and whent 6.80s at 3500. i think it works fine Quote Link to comment Share on other sites More sharing options...
tomcowle Posted March 30, 2009 Author Report Share Posted March 30, 2009 Remember, this is a street driven truck and not some race-only deal so if a couple of horsepower is left on the table who cares? The guy wants to drive it and enjoy it, so thats how it was built. It shouldn't embarrass itself that bad even if it doesn't run up to its potential. Quote Link to comment Share on other sites More sharing options...
Guest Removed Posted March 30, 2009 Report Share Posted March 30, 2009 bill lutz ran no intercooler on a blow thru and whent 6.80s at 3500. i think it works fine on alky with injection Quote Link to comment Share on other sites More sharing options...
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