cowboi89

Hello, I am putting an ls1 fuel rail on my motor which is an lq4 and going into a hot rod application.... not important. My painless harness manual says that the ls1 cars DO NOT have fuel pressure regulators. I thought that they did, which is in the form of the disk between the crossover for the fuel rail and the return line. The only big round 1 inch cyclinder which is flat. If anybody knows that this is not a fuel pressure regulator, please let me know. You reserve the right to call me an idiot if it is not. Thank you very much.
-Pete

ABeasst

iTrader: (5)

the fuel pressure regulator for ls1's is actually in the fuel bucket in the gas tank.

YoMommasTA

iTrader: (1)

the round cylinder you refer to is the acumulator.it is there to help make the injectors live longer.as the injectors open and close there is a hydraulic shock load in the fuel rail as the fuel moves and stops.that acumulator allows that energy to be soaked up.the regulator is in the tank,part of the pump assembly,its a silly little thing!

cowboi89

thanks guys, just what i needed to know