Question about truck fuel rail
Question about truck fuel rail Ok im swapping a truck 5.3 into my 71 c10 and getting all of the fuel system ironed out. I want to run the corvette style filter/regulator so i dont have to have a long return line back to the fuel cell but my truck engine has the return style fuel rail. My question is what is the easiest way to accomplish this? Can i run the corvette style filter/regulator to the inlet of the fuel rail and then plug the fuel return? or should i swap the fuel rail with one that is a return-less fuel rail?
Thanks for the help.
Thanks for the help.
Ok im swapping a truck 5.3 into my 71 c10 and getting all of the fuel system ironed out. I want to run the corvette style filter/regulator so i dont have to have a long return line back to the fuel cell but my truck engine has the return style fuel rail. My question is what is the easiest way to accomplish this? Can i run the corvette style filter/regulator to the inlet of the fuel rail and then plug the fuel return? or should i swap the fuel rail with one that is a return-less fuel rail?
Thanks for the help.
Thanks for the help.
Joined: Aug 2007
Posts: 24,241
Likes: 89
From: Turnin' Wrenches Infractions: 005
Are you talking about the port on the back of the regulator that's mounted to the fuel rail? That's not a return line to my knowledge, that's a vacuum port. The tunes run a straight fuel pressure reading for the injectors and the regulator varies fuel pressure via vacuum. On a sealed regulator (car) setup, the fuel pressure is fixed and the injector data is offset via the MAP sensor reading.
You can find a later non-return rail pretty cheap and easy. All stainless flex fuel rails are non return. Or there's always aftermarket ones.
I'm not sure what the regulator will do if you deadhead that line.
I'm not sure what the regulator will do if you deadhead that line.
Joined: Aug 2007
Posts: 24,241
Likes: 89
From: Turnin' Wrenches Infractions: 005
I understand in the stock configuration that the fuel regulator gets a vacuum feed to determine the correct fuel pressure. what i was thinking about doing was capping that vacuum port and running a plug instead of a return line. and have the fuel filter do the regulating. Would that mess anything up?
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