PDA

View Full Version : Adj. Fuel Pressure Regulator Q's


CRX_91si
01-04-2004, 12:19 AM
well after some months of it sitting in my tool box, i decided to stick on this AEM adj. regulator and B&M gauge.

Now before anyone says anything, i'm not expecting gobs of HP outta this mod, but i'd like to know an optimal setting i should be running at. Now in the Honda shop manual for the crx and the AEM sheet, it gives a general spec of 45 - 60 psi. Thats a pretty broad spec if you ask me.

So i guess i'm just looking for some input on what other people are doing, or even where i should start at. here's the set-up

D16A6
Z6 intake manifold
B18 throttle body
AEM cold air
4-1 header
2.5 cat-back exhaust
JET PM6 ecu upgrade (stock rev limiter)

any help / input is appreciated

thanx

mike

Lule
01-04-2004, 05:39 AM
Better check your manual for typos. 35-41 psi for the regulator with no vaccum applied. I have my pressure set at 36 psi and use endyn's idea of the idle bleed hole in the FPR.

Rexinre
01-04-2004, 07:14 AM
I have mine set at 41 when I had it dynoed. I pulled in there at 50ish and he said I was getting too much fuel. I aslo have a turbo so its a little different for me, but just so you have an idea.

Good Luck

CRX_91si
01-04-2004, 08:35 AM
Better check your manual for typos. 35-41 psi for the regulator with no vaccum applied.

umm...well have a look at the manual yourself then. It clearly says 40-60psi with no vaccum applied

http://www.binghamtonlife.com/manual/2gsm/images/91-11-94.jpg

the AEM sheet gives the same spec.

anyway thanx for the input, i appreciate it


mike

DOG
01-04-2004, 08:41 PM
I would set it at 40 psi if that is as low as you can get it. 36 psi is oem spec. for a6 . Unless you have a stage 2 PnP and a cam upgrade and the need for that much fuel to compensate for more air. Whats the oem z6 fuel pressure, anyone?

dragman99
01-04-2004, 11:09 PM
z6 is 40-47psi. with no vacuum.

CRX_91si
01-04-2004, 11:13 PM
Whats the oem z6 fuel pressure, anyone?

according to the manual for the 95 civic, EX/Si fuel pressure is listed as 40 - 47 psi with no vaccum applied

and actually to the other guy, i did mess up, the manual says 40-50 psi not 60.. the online manual is a little fuzzy and hard to read sometimes

my bad

so i guess in all, i'll stick it at 40-42psi and go from there.

thanx for the help

mike

Lule
01-05-2004, 04:01 AM
Well, that's odd. You're showing me the same page that's in my book, but that one line of type is different. It's certainly not the first error I've found in Helms. I still think 40 is too high.

onesickcrx
01-06-2004, 09:22 PM
30 at ideal and like 39 when it kicks up with vacum on it but i run it little diffrent when i had one mike just im me later or call me peace