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Fuel Presure

718 views 2 replies 2 participants last post by  spock1996 
#1 ·
I put a regulated fuel return on my truck with a gauge, I have the pressure set at about 75psi but when i hammer on it, it will get down to 30psi or so. Is my stock pump not keeping up?? whats everyone else running for pressure? ps stock injectors, edge programers highest tune.
 
#2 ·
I put a regulated fuel reture on my truck with a gauge on my 1999. I have the presure set at about 75psi but when i hammer on it, it will get down to 30psi or so. Is my stock pump not keeping up?? whats everyone else running for pressure? ps stock injectors, edge programers highest tune.
We run 65-72 on stock injectors, the pressure dropping is caused by either the pump not keeping up or a restriction before the pump.
 
#3 ·
do the superduty's have some sort of a fuel pickup problem? when i was leak checking my fuel system, it sounded like air going through my pump every once in a while, i had about a half tank of fuel.
 
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