Engine/Transmission (1994 - 1998) Fuel pressure gauges

[JHenry]

What is the normal operating fuel pressure on a '98 12 valve engine, with no modifications, other than AFE filter, straight-piped and fuel plate? I want to buy a gauge and notice they range from 0-30psi to 0-100psi.

 

[hsmith]

I went with the 30 psi gauge and it stays pegged most of the time. A 60 psi gauge is needed for the 12 valves. My bad, Isspro does not offer a 60, so I may wind up with a miss match. I think we run around 34-36 psi max.

 

[hsmith]

Let me correct myself before I get stomped on. Isspro does offer a 60# fuel gauge. Geno's does not handle it.

 

[WDixon27]

i have a 60# isspro that just died that i need to replace, i have my of valve tweaked to where it runs between 28 and 34#, it seemed to like a few more psi as it found a happy spot where it pulls sweeter after i played with it, but i don't have a normal of valve, i dub'd it frankenvalve, it's half dodge half mercedes, when i got my truck the valve had no ball or spring so i dug through my pile of dead injection pumps at the shop and scavaged together a valve, been cooking for 2 years now with one spring change and tune up a year ago, guess the old spring died