exhaust pressure for spooling a big turbo
01-27-2005, 01:28 PM
#1
Staging Lane
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exhaust pressure for spooling a big turbo does anyone know if an LS1 has enough exhaust from both heads to spin a Cummins T46 turbo enough to get any usefull boost?
01-27-2005, 05:40 PM
#3
if it is the turbo from the 5.9 cummins engines used by dodge, you can spool it but I've heard that they are only good for 500-550rwhp. if it's from one of the big rigs(855ci or bigger)...uh,...no. I saw a guy put one of those on a 455 pontiac with a stock cam and he only made 8psi at redline with no wastegate.
01-28-2005, 08:03 AM
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Staging Lane
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yeah, it's off of a big rig. not the 5.9L dodge. i'd love to have more info on it but i bought it used and rebuilt it. I know it's a T46 cummins and I know its discontinued. but man that thing screams! (hooked it up to my air compressor) and 8psi ain't to shabby. it will be interresting to see
01-28-2005, 11:55 AM
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Originally Posted by BlackSilver
yeah, it's off of a big rig. not the 5.9L dodge. i'd love to have more info on it but i bought it used and rebuilt it. I know it's a T46 cummins and I know its discontinued. but man that thing screams! (hooked it up to my air compressor) and 8psi ain't to shabby. it will be interresting to see
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01-28-2005, 07:05 PM
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What about Holset turbos? Back in my DSM days I looked into putting an HX35 on my '97 Talon. I know that there are a few other HX and HY series turbos out there that might work fairly well in a street turbo car. HX55s can be had for a fairly decent price, and while it might not be the best turbo for an all-out race motor, it might just work well for the budget-minded amongst us.
01-30-2005, 01:41 AM
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Also, remember that heat plays a big role in the efficiency of a turbo on said engine. Not only does it take 'exhaust pressure' but the heat from those exhaust gases expanding rapidly also causes the turbine wheel to turn.
