hey I got a stock B20B with a B16 head and I just installed a B&M fuel pressure regulator and was wondering whats a good psi to run it at I believe it is set at about 42psi right now is that too high?.

 

You need an air fuel sensor and gauge. Don't mess with the stock setting until you get that or you risk damaging your motor. Anyone can recommend a psi that works for them but without knowing your set up that's dangerous.

 

i would say 46 better rich than lean! but...wwhat injectors are you on?

 

its just on stock B16 injectors. Nothin special yet.

 

i had a b18c5 now i have b20 vtec.. fuel pressure was around 55 psi at idle for the itr. i didnt change the fuel pressure now i have B20 vtec. is 55 psi too high? what's good fuel pressure for b20vtec at idle?? thanks alot

 

what is B20 vtec fuel pressure at idle? i need to know this asap