Fuel Pressure HELP!!!!

z585

Member
does anyone know how much pressure is on the p5 fuel line? And does the pressure increase depending on how fast the car goes?

Thanks
Josh
 
Believe fuel line pressure is around 30-36psi. And your talking about right at the fuel rail right? and not the lines themselve from the tank foward?
btw that is at idle pressure not 100% sure what increase it would give under throttle but would think it would raise.
 
Fuel pressure at idle should be in the neighborhood of 35-45 psi. Some seem to think it is always on the high end. I've personally seen mine sitting mainly at 35 psi.

I think the stock FPR raises the fuel pressure only a few psi as the car sees load, but I'm not sure. I put my gauge on after I was boosted, so that changes everything.

Really wish I had had all my gauges before the install, that way I would have some before and after data, but there's that hindsight thing.
 
Thanks

If ya want to know the truth I screwed up my fuel line the peice from the pulsation damper at that quick connect to the quick connect next to the firewall. I was going to install a inline fuel gauge but didn't ya know we have hard plastic fuel lines?? I feel like such a dip sh@t! Well I had to splice it back together so i could drive it but I drive 45 min into houston to work it doesn't leak but decided not to chance it I will drive my wife's crappy civic. The dealship wants between $85-$150 estimante for a new line?
Does anyone know if I can safely splice the line back together or am i screwed out of $100 bucks?

Dumb as Dirt
Josh
 
Well, I could sell you my old line (it is sitting in a box).
Or to really save you cash, go buy some 5/16"? gas line and two clamps and make your own line that you can install a gauge in. All us turbos are running rubber fuel lines, so it will work for you too! Cheap and easy baby!
 

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