Injen Intake W/Up IC Pipe
High Flow o2 Housing Turbo Outlet
HKS RS Downpipe
TEST Pipe
HKS Silent Hi-Power Exhaust
I changed these parts on my E8,
and I use Perrin Fuel Rail with stock FPR,stock injectors,stock ECU,IS that ok?
What should i do?
NOW,my E8 has a problem,,when accelerate to about 5000r/min, my Evo jerks really hard like it hit a wall,
what is the problem?
thanks

 

If its only doing his in higher gears most likely your hitting boost cut......turn down your boost

 

Hmmm, Maybe needs a new fuel pump?

 

I did not change boost,its still stock boost

 

Does it throw a check engine if you stay on the gas, If so it is reading over boost. Even at 17lbs my evo did this with basically the same mods you have. Do a fuel pump and aflash and it should be fine.

 

Thank u very much

 

I use Perrin Fuel Rail with stock FPR,stock injectors,stock ECU,IS that ok?