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adams86lxi
04-05-2006, 03:52 PM
Ok so i have a b&m fuel pressure regulator on my accord and im getting a guage for it too. But what would the fuel pressure be with the stock fpr??? So i have a good base point of what i should turn it up too??? Aso will the fuel pressure guage kits like these for civics hook up fine to are cars?? Or do i need a different fitting? Thanks!

http://www.optionsauto.com/prodinfo.asp?number=BM-46054
bobafett
04-05-2006, 05:37 PM
40-44 psi for efi i believe.

i cant help you with gauge fitment though. :(
gfrg88
04-05-2006, 05:48 PM
the fpr from b16 and b18 work are the same as our cars, i have my stock one on a b18 fuel rail.
adams86lxi
04-05-2006, 06:48 PM
the fpr from b16 and b18 work are the same as our cars, i have my stock one on a b18 fuel rail.


yea but would the guage work inbetween the 2? The guage that goes on the fuel filter.
gfrg88
04-05-2006, 08:29 PM
not sure :dunno:
smufguy
04-06-2006, 06:47 AM
40-44 psi for efi i believe.

i cant help you with gauge fitment though. :(

nope, its 37psi at idle and 39psi at WOT.

ADAM: that will fit. It will go on the line at the Fuel Filter.
adams86lxi
04-06-2006, 07:57 PM
nope, its 37psi at idle and 39psi at WOT.
ADAM: that will fit. It will go on the line at the Fuel Filter.

awesome! thats what i needed to know! So how do i check it? I would just leave the vaccum line to the wastegate to check the pressure at idle and just diconect the vaccum line to check the fuel pressure for wot right?
smufguy
04-07-2006, 06:03 AM
the FPR are 1:1 regulators. SO if you wanna run lets say 46psi of fuel pressure at 6psi of boost, you disconnect the hose with the car idling and u set it to 40psi of fuel pressure at 1atm. once u plug the vac hose from the frp to the manifold, due to the high vac in the Intake manifold, you will see the fuel pressure gauge drop to normal fuel psi. then u hit the throttle and u see 6psi on ur boost gauge, you will see 46psi of fuel pressure on your fuel pressuge gauge.

so know how much fuel pressure u have to run at max boost, and see how much the max boost is above atmospheric pressure. then subtract that from the required fuel pressure and set ur adj fpr to that fuel pressure. so from the above example, 46psi of fuel at 6psi of atmospheric pressure so u do 46-6 = 40psi of fuel pressure with the car idling and the vac hose off.