sts turbo tailpipe problem
sts turbo tailpipe problem after 3 months without a muffler or a tailpipe on my STS kit, i put one there today and i hate it because the truck wont make full boost and would only make it at higher RPMs. i didnt put a muffler, it is a 3 inch tailpipe that goes on the right corner. what are you guys with turbos using as a tailpipe or what would you recommend?
mods are:4.8 5 speed, Sts Turbo @7psi, Pacesetter Lts, 220/220 cam
mods are:4.8 5 speed, Sts Turbo @7psi, Pacesetter Lts, 220/220 cam
That's weird. I have a Borla XR-1 after the turbo, and the car makes full boost by 3600-ish rpms (and that's a T76). Granted I'm only boosting 5 psi right now. I didn't see much of a difference in spool time at all when I put it on. I'm sure this doesn't help much, but just wanted to let you know my experience.
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TECH Addict
Joined: Nov 2001
Posts: 2,659
Likes: 1
From: Bellevue, Wa
the million dollar question, take the tailpipe back off, does it go back to normal?
it might be something else completely but a freak coinkydink that when you put the tailpipe on it cropped up.
it might be something else completely but a freak coinkydink that when you put the tailpipe on it cropped up.
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It may all be in your head too. I did the same thing, with the car quieter it just doesn't sound as fast. I also felt like I had a lot more low end torque with the muffler after the turbo than without.
i have the stock exhaust pipe and i build boost fine. wrap your exhaust from your y-pipe all the way back to the turbo.. yoiu will cut down spool time (spool quicker)
this is before i wrapped it
this is before i wrapped it
Joined: Jun 2004
Posts: 1,501
Likes: 7
From: Ft. Irwin, California (But Virginia is home)
after 3 months without a muffler or a tailpipe on my STS kit, i put one there today and i hate it because the truck wont make full boost and would only make it at higher RPMs. i didnt put a muffler, it is a 3 inch tailpipe that goes on the right corner. what are you guys with turbos using as a tailpipe or what would you recommend?
mods are:4.8 5 speed, Sts Turbo @7psi, Pacesetter Lts, 220/220 cam
mods are:4.8 5 speed, Sts Turbo @7psi, Pacesetter Lts, 220/220 cam
Good luck
