fuel pressure

[madchildz]

what is the ideal fuel pressure when my civic is running and or accelerating at a fast rate?

[BullShifter]

depends what you have done to your engine.

[91CRXTC]

where should i tap in to hook up a pressure gauge to see if i loose pressure at higher rpms?

[Greenblurr93]

most people tap into the bleed screw on their fuel filter, other put an AFPR and mount a guage on that. but if you want to see what it does while driving your going to need to bring the gauge into the car..

[91civichatch2571]

35-41 is normal on a stock motor with a vacuum line disconnected.

[BullShifter]

Originally Posted by Greenblurr93

but if you want to see what it does while driving your going to need to bring the gauge into the car..

NEVER put a fuel pressure guage in the car unless in electrical, most cases fuel pressure guages are mechanical which means if the line breaks you get fuel spraying inside the car. Not smart.

To answer your question you hook up the guage to the line closest to the driver side of fuel filter, in other words the left side.

40-50psi is spec with the vacuum line at fuel pressure reg. disconnected at idle.

[Greenblurr93]

ya, thats what i meant......lol...

[91civichatch2571]

Originally Posted by jackasssi

40-50psi is spec with the vacuum line at fuel pressure reg. disconnected at idle.

Not saying either of us are wrong, but just wondering where you got that spec from.

[BullShifter]

Originally Posted by Greenblurr93

ya, thats what i meant......lol...

uhuh

Originally Posted by 91civichatch2571

Not saying either of us are wrong, but just wondering where you got that spec from.

From my 91 Civic Si factory manual

[91civichatch2571]

alright, i suppose thats more reliable than the people on h-t lol

[Kunundrum]

Most Fuel Pressure gauges are kept in the engine bay... mine is mounted on my fuel rail.