Fuel regulators? return line? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

67chevemall · 04-06-2006, 01:31 PM

Howdy

When you use a fuel regulator do you have to put a return line to the
cell for the extra pressure/fuel and you are turning back.
or
Does it not matter that you build up a little pressure in the line with
the regulator??

Any ideas on fuel delivery would be great..

shifty · 04-06-2006, 04:24 PM

normally a fuel pressure regulator has a return line to put excess fuel in the tank. your pump will put out X amount of fuel, which is usaually more than the regulator will need. it has to put the excess somewhere or else something is gonna bust (or your pump is gonna fry)!

67chevemall · 04-06-2006, 06:11 PM

so the stock pump is about 6psi and I have a gauge that is reading 4...
I have a Holley regulator that has the bottom plugged, ..where does that pressure go?

Should I unplug it and run a line from the bottom outlet to the tank?
The regulator only has an arrow pointing straight through..I didn't realize the bottom is a return line..If that is what it is..as I have no idea what it is..

ratrod67 · 04-06-2006, 07:29 PM

I believe there is no need for a return up to 7 psi. After that a return is needed.

67chevemall · 04-06-2006, 07:42 PM

Quote:

Originally Posted by ratrod67

I believe there is no need for a return up to 7 psi. After that a return is needed.

This would be easier! I could just plug the extra outlet on the fuel cell........Anybody else?

cduster · 04-07-2006, 12:02 AM

I ran one on a stock fuel pump with no return. Didn't have any problems

04-06-2006, 01:31 PM	#1
67chevemall Registered User Join Date: Apr 2003 Location: NB Posts: 3,367	Fuel regulators? return line? Howdy When you use a fuel regulator do you have to put a return line to the cell for the extra pressure/fuel and you are turning back. or Does it not matter that you build up a little pressure in the line with the regulator?? Any ideas on fuel delivery would be great.. __________________ 1968 Chevy C10 307 3ott fleetside 1967 Chevy C/10 V8, 3spd, fleetside lwb.Sold 1967 Chev C/10 step, 383, M21. SOLD

04-06-2006, 04:24 PM	#2
shifty Questionable Join Date: Mar 2005 Location: Atlanta Posts: 13,373	Re: Fuel regulators? return line? normally a fuel pressure regulator has a return line to put excess fuel in the tank. your pump will put out X amount of fuel, which is usaually more than the regulator will need. it has to put the excess somewhere or else something is gonna bust (or your pump is gonna fry)! __________________ If I've got anything up for grabs, it'll be here: 7-hole gauge cluster for a 67-72 p/u FREE (link) I can't check the forum daily. If I don't reply to you within 24 hours, drop me a PM! I'm (hopefully) still alive and will reply faster to a PM.

04-06-2006, 06:11 PM	#3
67chevemall Registered User Join Date: Apr 2003 Location: NB Posts: 3,367	Re: Fuel regulators? return line? so the stock pump is about 6psi and I have a gauge that is reading 4... I have a Holley regulator that has the bottom plugged, ..where does that pressure go? Should I unplug it and run a line from the bottom outlet to the tank? The regulator only has an arrow pointing straight through..I didn't realize the bottom is a return line..If that is what it is..as I have no idea what it is.. __________________ 1968 Chevy C10 307 3ott fleetside 1967 Chevy C/10 V8, 3spd, fleetside lwb.Sold 1967 Chev C/10 step, 383, M21. SOLD Last edited by 67chevemall; 07-09-2010 at 02:27 PM.

04-06-2006, 07:29 PM	#4
ratrod67 Registered User Join Date: Sep 2002 Location: DFW Texas Posts: 2,269	Re: Fuel regulators? return line? I believe there is no need for a return up to 7 psi. After that a return is needed.

04-07-2006, 12:02 AM	#6
cduster Registered User Join Date: Oct 2002 Location: S.W. Michigan Posts: 403	Re: Fuel regulators? return line? I ran one on a stock fuel pump with no return. Didn't have any problems __________________ Good Judgment comes from experience. Most experience comes from bad judgment.



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