View Full Version : Stock fuel pressure?


Runn
09-23-2005, 05:29 PM
Whats the stock fuel pressure on a 98?

Matt@HSW
09-23-2005, 06:10 PM
Usually around 57 - 58 ish psi.

matt

Runn
09-24-2005, 01:05 PM
How big injectors is possible to run with stock pump?

oange ss
09-24-2005, 03:14 PM
hp is the limiting factor on a stock pump not injector size

Runn
09-26-2005, 05:13 AM
But there have to be a limit to the injector size right? When the pump can run them at 100% anymore....

oange ss
09-26-2005, 01:05 PM
not really, pump has nothing to do with injector size, the pump is there to meet the fuel consumption of the engine , the VCM controls injector duty cycle depending on fueling needs and of course fueling needs can surpass the safe operating limit for injector size

hawaiiboysz
09-27-2005, 01:53 PM
So there is no need to upgrade the pump then? Just injectors So when would you need a pump?

oange ss
09-27-2005, 02:36 PM
So there is no need to upgrade the pump then? Just injectors So when would you need a pump?

an upgraded pump is always a good idea, but you really wont need one till around 450 rwhp, the 01-02 injectors are good for about the same power range, the 98-00 cars will need to upgrade injectors around 400-420 rwhp

slmdLS1
10-24-2005, 06:44 PM
Usually around 57 - 58 ish psi.

matt


44psi too low or is that "within a safe range" ?

oange ss
10-24-2005, 07:24 PM
too low

Matt@HSW
10-25-2005, 12:54 PM
Too low.

Matt

44psi too low or is that "within a safe range" ?

slmdLS1
10-29-2005, 07:25 PM
got it up to 58psi constant.