Is a Fuel Pressure Regulator needed?
07-15-2011, 11:36 AM
#1
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Is a Fuel Pressure Regulator needed? Hi all I have a 99 s10 with a 98 z28 ls1 in it. It has an auto trans and stand alone wiring harness. Other than headers, a 255lpf FP and cold air intake the engine is stock.It also has a fuel rail from a 2000 vette on it with the Fuel Pressure Pulse Dampener on the drivers side of the rail. I know that the vettes have the Fuel Pressure Regulator in the tank. On my particular application (99 S10), i do not have a FPR in the tank, therefore currently i am only running with a FP Pulse Dampener and NO FPR.
Currently the truck runns great and holds 60-70 psi on the rail while running.
My question is, do i need to add a FPR? If i do not add one what are the consequences? could i burn up my FP or something else?
Currently the truck runns great and holds 60-70 psi on the rail while running.
My question is, do i need to add a FPR? If i do not add one what are the consequences? could i burn up my FP or something else?
07-15-2011, 02:21 PM
#3
Agreed.
Needed, no - strongly suggested, yes.
I bet you are running rich and don't even know it. The fuel pressure regulator keeps things in line and the entire tune is built around that. In this case 58 PSI is the magic number, higher the engine will run rich and less will make it lean. Too much of either hurts longevity and power.
Needed, no - strongly suggested, yes.
I bet you are running rich and don't even know it. The fuel pressure regulator keeps things in line and the entire tune is built around that. In this case 58 PSI is the magic number, higher the engine will run rich and less will make it lean. Too much of either hurts longevity and power.
