Boosted97GS-T
20+ Year Contributor
- 90
- 0
- May 1, 2002
-
Louisiana
heres the deal, for about a year now i have been having huge boost spike issues with my car. But since i never had a need to run more than 15psi it never bothered me. Now that i have upgraded turbo and other supporting mods, i would like to pick up the boost to around 18psi or so. but no matter what i do it 15-16psi.
I checked for boost leaks, and everything seemed fine except my 1g bov was leaking a little so i changed out that with a turboxs bov.
checked leaks again and everything held great. went for a test run and spikes went down to about 4psi spikes.
just yesterday i changed out my joe p mbc for a hallman(nice looking mbc i might add), and still have the same exact problem.
from what i can tell it looks like it likes to be at 15psi, the more i pick it up the more it spikes. sometimes the spike last long enough that it will give me fuel cut, but most of the time it will just end up back at 15psi or 16psi.
I checked for boost leaks, and everything seemed fine except my 1g bov was leaking a little so i changed out that with a turboxs bov.
checked leaks again and everything held great. went for a test run and spikes went down to about 4psi spikes.
just yesterday i changed out my joe p mbc for a hallman(nice looking mbc i might add), and still have the same exact problem.
from what i can tell it looks like it likes to be at 15psi, the more i pick it up the more it spikes. sometimes the spike last long enough that it will give me fuel cut, but most of the time it will just end up back at 15psi or 16psi.