Can a stock fuel regulator be shimmed to produce higher fuel pressure?I installed a new stock regulator on my Tahoe and was thinking of trying to add a shim behind the clip to see what happened.Has anyone tried to modify a stock regulator?

 

Couldnt you use an FMU? Im not sure about altering a regulator, FMU seems easier.

 

I'm going to an aftermarket regulator in a couple of weeks and thought I'd see what could be done to the stock regulator,for a cheep mod for some of the guys who can't afford to change their fuel systems.

 

Unless its a regulator for a flex fuel engine it can be adjusted. If I remember right, it takes a #8 torx security bit. Just turn it clockwise to increase pressure.

 

Do you know if the FPR in a 2004 can be adjusted, It is a returnless system with the fuel pressure reg. in the tank.
Thanks and sorry for the high jack

 

yepper!

 

Is that a yepper for me also?
Yesterday I ordered the magna-volt from Magnacharger and had them over-night it to me. Hoping this will cure my fuel pressure problem. If It does I will be going to the Chevy VS Ford shoot out at the Sac. speedway On Sunday.
NorCal LS1 club rented the track for the day. I sure hope I can go and show them FERDS a thing or two
Mark

 

Negative. The 2004 does not have a regulator on the fuel rail.

 

Neither of the 2 FPR I have bought have had a *8 torx screw on them. I make sure I dont get the FF FPR. Where is it at? Is the screw right on the front visable once installed? I dont have one with me to take a picture of because I'm

"Over Here"

 

installed a new one on my truck and it had to be adjusted to get the fuel pressure up to where it should be, did not have to turn it much, don't know how high it can go