Hey I'm lookin pretty seriously into putting a fass 95 pump in my truck but I'm curious to see what fuel psi I'll have at idle and wotwith the fass?! Any commets would be much appreciated

 

I get 15-16 psi at idle and 13.5 @ wot.

 

Mine does the same as can17 -- never below 13.5 @WOT or above 17 at idle

 

Mine does 15 and maybe down to 14 at wot, it stays pretty steady

 

Mine is at 17.5 psi @ idle and 14psi @ WOT.

TK

 

k cool guys.... thanks

 

Oops forgot to mention mine is a fass 150

 

Mines usually at 14 but every once in awhile it goes lower.

 

if you get a fass get the 150

 

i heard a 150 putsto much pressure on a stock injection pump?= premature failure no?

 

What do you mean by FASS 150??

Do you mean FASS 150/150 or FASS 150/95...there are also FASS 95/150 and FASS 95/95

FASS says the fist number specifies the series of the kit and the second is the GPH of the pump.

My part number is a FASS 150/95-1008, which uses a 95 GPH pump, good for upto 500hp I've been told

 

oh..... i guess i ment the 150/150 then

 

Get the 150 series (easier to get filters for), but the 95 GPH should be fairly adequate. Luke (1-5-3-6-2-4) did 507 on a stock lift pump, so a 95 gph will be plenty for most. I wasn't really aware of much pressure difference between the 150 and 95 GPH units. My 150 GPH unit was usually 16-18 psi at idle, and I could draw it down to 12 or so. My 95 GPH is 30+ all the time, but thats a special one.

 

I have a 95gph pump from fass but I do not have the filter parts just the pump I see 22 psi @ idle and 15 @ wot but on really cold days like in the teens I will see 10 psi @ wot. I installed a different spring in mine to raise the pressure.

 

Our pump volume has no bearing on what pressure you see....MAYBE 1 PSI difference...thats it.

If you have a VP-44, a 95 GPH pump can keep up with most anything you can toss at it.

ALSO...the pump without the filters is a HPFP (High Performance Fuel Pump)

The pump with the filters is a FASS. Anyone that was telling you they have pressure over 15 PSI has a HPFP (Unless they put in a different spring in the FASS to bring it up that high.)