Do you think a fuel pressure riser would give significant gains on a 1.5 with mpfi and i/h/e?

Is it necessary to tune it on a dyno?

PL

 

no i dont think its worth it. if you have those mods already why not go for some N20 or some rims, coilovers, etc....

 

I agree. You dont need to raise your fuel pressure at all. If you really want just get a fuel pressure regulator for $15 and spend the rest of the money on something else.

 

Thats usually used on boosted cars... Much to say they are tid bit of a joke, I know I have one...:/ hehehehe

What you might do is get an adjustable fuel pressure regulator, along with a fuel pressure gauge... That way you could fine tune your fuel pressure. Might want to get an Air/Fuel Ratio gauge too. That would give you a "little" more info on what your fuel system is doing. Probably run you over a $100.00. to do it tho, last account I had. However, I agree with 89 CRX SI & 90_Civic_Hatch....

Honda's MAP sensor is real good about seeing how much air is flowing through the intake system. Sooo, it will tell the ECU to adjust the injector Pulse Widith, to compensate for the additional air, now that you have all the mods...



[Modified by 88_SC_CRX_Si, 7:04 AM 6/11/2002]

 

Ok, thanks!!

PL

 

once you start doing head work or swaping injectors you'll want a COMPUTER to adjust fuel. adjustable fprs are good for a constant psi. but odds are you'll run stoich at some points and rich as hell at others.