jumpy acceleration

[twofourzeroSX]

ok i just recently upgraded head gaskets and installed the t28...it runs great but if you arent on boost, and you are in the low rpm range (before 3,500) it jerks back and forth. Im not sure what this is..any1 have any ideas?

[xero1]

could be you're clutch.

[twofourzeroSX]

the clutch slipping?its posible. i have been beating the crap out of it with alot of burnouts and stuff. but why doesnt it slip under hard acceleration or hard shifts?

[Rosco]

I have the same problem....I doubt it's the clutch because mine is brand new stage one Exedy....but hey you never know.

[inertiadrft]

boost leak!! or large intercooler??

[twofourzeroSX]

it holds boost fine under acceleration, and builds boost fine. i have the greddy vspec FMIC

[ILikeMy240sx]

well even if your engine holds boost fine, you might have a small vac leak somewhere that's causing your car to run jumpy like that during low RPM range.

I would do a leak test to see if you got any leaks. Also, check to see that your timing is ok as well.

[twofourzeroSX]

i checked the timing, that is fine...how do you do a proper leak test?