I got my car back from the shop after having my aem fpr installed... i told them to put it to stock settings but its running at 31psi at idle in neutral according to the guage on the fuel rail. Should i put it higher to about 35? and which nut is the adjustment the one on top?

 

You paid someone to install a FPR?? Anyway, I have mine set at 40psi and that's right about in the middle of what Honda recommends and everythings fine...

Loosen the nut around the bolt sticking out, and turn the bolt with an allen wrench. Then tighten the bolt when you have the desired psi.

 

i got the regulator and a rail for my birthday... and he had it done with out telling me...



thats the adjustment right? sorry to be slow i just dont have the instructions


Modified by fireslinge at 2:54 PM 8/22/2004

 

Yup, that's the adjuster.

While 40 may be within specs, every Prelude I've seen had their fuel pressure around 35-37 psi at idle.

 

yea im gonna go to like 35-36 nothing crazy just stock
done and it runs much better...


Modified by fireslinge at 8:06 PM 8/22/2004

 

i pull thevacuum tube off and set it to about 43 psi , then once you put the vacuum tube back it will adjsut slightly along with manifold pressure.

 

i got got mine set at 45psi

 

What kind of gains can be seen with FPR?

 

dont expect much gains from a fpr... unless you just built your head and never adjusted the fuel.

 

don't mean to hijack, but when you guys are adjusting your aftermarket FPR's are you changing how do you know what pressure you are running. Are you using a gauge??

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by adseguy &raquo;</TD></TR><TR><TD CLASS="quote">don't mean to hijack, but when you guys are adjusting your aftermarket FPR's are you changing how do you know what pressure you are running. Are you using a gauge??</TD></TR></TABLE>

Oh, yes...you have to have a guage. I have a crappy B&M on the rail right now...

 

Yup, that's the adjuster.
While 40 may be within specs, every Prelude I've seen had their fuel pressure around 35-37 psi at idle.


are you sure its not 35 37 with the vacuum hose pulled off ?

 

Did the b&m fit right on? ......I just got a str fuel rail and was wondering..I see the port for it to screw into . Just wondering if the threads are the same.....

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Goinfasterthanu &raquo;</TD></TR><TR><TD CLASS="quote">Did the b&m fit right on? ......I just got a str fuel rail and was wondering..I see the port for it to screw into . Just wondering if the threads are the same.....</TD></TR></TABLE>

Yeah, that's what that port is there for, it should fit. It screwed right into my AEM rail...

 

92-96 h22-- 39 psi no vacum. this simulates wide ope throttle
97 up h22-- 51 psi no vacum.

trust me on this.

35 psi on your 2001 lude is way too low. turn it up to about 48 psi with hose off. they run a little rich from the factory and this will give you a couple of hp.

 

what would be wrong with your car if u pulled the vac tube off and it made no changes on the fpr

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by honda9369 &raquo;</TD></TR><TR><TD CLASS="quote">what would be wrong with your car if u pulled the vac tube off and it made no changes on the fpr</TD></TR></TABLE>

It made no changes on the gauge? That's odd. That would mean it wasn't getting any vacuum at all. Clogged maybe?

 

i use stock fpr and rail? oh yeah i have pump and injectors. hahaha