im getting ready to finish up my car witch is gonna be my DD but still will take it to the track n run it and i was wondering what would be better to run with the b16a SIR ll the stock ob1 computer or a p28 chipped with Phearable.net?

Stock b16a
70mm bbk TB
3inch bpi velocity stack
bisimoto header
3inch exhaust no cat(18"resonator) vibrant muffler

 

3" not cat on a stock engine... hmmm. will bog a bit in the lower rpms with the stock computer and no other modifications. You fell for the old "3 inch exhaust is best for NA" argument didn't you?

 

and you fell for the back pressure bs?

 

You want more velocity flow

 

but does anyone one have any input on the ecu?

 

With the mods you have, a chipped ecu on 91-93 octane fuel from phearable.net will out perform your stock p30.

 

thanks!