Boost Creep 3" Catback

[DSM91AWD]

I'm going to put 3" test pipe 3" catback on my 91 GSX with stock 14b turbo and stock downpipe, do you think i will get boost creep? I have 3" downpipe too, but i'm not going to put on the car, i know for sure i will get boost creep with 3" downpipe. Will it help with o2 housing dump?
Please Help Me Out

[ryanman]

There is only one way to find out. PUT IT ON.

[Dallas J]

Youre not guaranteed to get creep with your 3" downpipe, I dont know why you would think that. Are you on a stock turbo? I can run 12psi with a 3" down pipe on my B16g, never had any creep problems.

Also i believe the high altitude helps lower the point where creep would stop on any given Turbo/wastegate setup.

-Dallas J

[v413nc3]

If you make it easier for exhaust to go over the turbine instead of out the wastegate you'll get creep at a given RPM. Either live with it and turn down the boost so you're at 9-10 in 1st and 15-16 in 5th or do some porting :) (that is if it creeps, they don't always creep)

[3rdtime]

i have a full 3" turbo back system on a stock 14b and i havent had any problems. just try it if it dosent work for you take it off.

[KeltonDSMer]

How would you use a 3" test pipe w/ the stock DP? You might as well install the full exhaust and deal with boost creep later if it becomes an issue.

[hoffman]

Just slap it on. Your going to want to have that 3" exhaust someday anyway. So install it. 2-3psi is nothing and the stock fuel system can handle it.

Just what ever you do, don't do the 34mm flapper mod.