lt170chevelle

iTrader: (2)

i ran a pressure test on my 94 lt1 and it had around 35psi with the regulator hooked up and around 45psi when unhooked.oh yeah and that was running in idle is this a little low on pressure? i thought lt1,s ran higher pressure. just wanting to know am trying to find out the mystery power loss lately. thanks Mako

MEAN LT1

iTrader: (2)

I think that is a little on the low side. Normal is around ~40psi from what Ive seen.

obe1 95Z28

Stock fuel pressure is 41 - 47 psi with the vacuum line off.

sssalah

Yes stock pressure is around that with the line unhooked. With the vacuum hooked it depends on how much vacuum the motor makes and idle speed, mine is around 32 psi hooked.

lt170chevelle

iTrader: (2)

ok thanks...thats one possibility vanquished

BlackScreaminMachine

iTrader: (17)

The one I'd worry about is when the guage is hooked up to the windsheild under load and its loosing alot of PSI under WOT

streetwarrior96

ur pressure is fine dude