Hello h-t, I’m new to this form and I was wondering if I could get some help from you guys. I have been reading post after post and you guys know your ****. Well here we go, I have a 95 integra rs, with short ram I, dc 4-1 H, and apex cat back, and aem crank pulley. I just bout a b&m FPR and I was wondering if you guys could tell me what my stock fuel should be at and what I should adjust it to. Any comments would be very grateful . Thanks for all your help.

p.s I will post a pic of my car as soon as I could.

 

Welcome.

I'm not sure what you're hoping to do with the FPR. With your mods I doubt you're going lean so I assume your goal is to fine tune your A/F ratio. The problem with the FPR is that its going to affect your entire rpm band. If you're trying to fine tune the A/F you'd be better off with the VAFC or SAFC. No matter what technique you use (FPR or AFC) you're going to need to get on a wide band 02 equiped dyno to see how your changes are affecting the ratio.

Sorry, I don't know the stock FP off the top of my head. I'm sure someone will, but I'd encourage you to get a repair manual for the future.

Once again, welcome.

 

after i installed the dc 4-1 ss headers it fells like i lost mid range power, but that was with my butt dyno.

 

here is what you do...

you need a a/f guage, and a fuel pressure guage...

install the fuel pressure guage...BEFORE you install the FPR

get a baseline reading of your fuel pressure...then install the FPR and set it to stock...the watch your A/F and start tuning...

of course this would be done much more precisely on a dyno...

 

as far as losing midrange with adding parts. you have to also understand that any part that you add is a give and take, if it adds a lot to your top end, you will see either no increase in mid and low, and it is likely that you will see a dip in one or the other.

if I remember correctly 4-1 headers are designed for high end power, and you will lose some of your midrange.

unfortunately I don't know as much about the fuel pressures, your best bet is to follow what these guys say

welcome to the forum

 

I talked to a guy here in Toronto that has a dyno. he said that by upping my fuel and advance the timing he could get about 2-4 whp. do u think that might be true? or is he just f**king with me.. he said all I need is one hour on the dyno & it would cost me $110 cnd. Should I do it?

 

yes, put it on a dyno

 

You won't be able to fine tune the ratio unless you have a wide band sensor (expensive!). The A/F gauges using the stock sensor isn't nearly senstive enough to do that kind of tuning. Its good enough to tell you if you're lean or rich, but not much more than that. You're better off on the dyno, but personally I think your money would better spent on other mods at this point.