return line

Mike Savelle · 05-04-2017, 08:24 AM

building another sb stocker for my son , do I need a return line for this carburetor engine?

Dave Turner · 05-04-2017, 08:29 AM

Hi Mike...I used a -8AN return in my fuel system. I don't regret spending a little extra on hose, fittings and the regulator to get the benefits as compared with the dead head style. Very consistent pressure at all times.

Dragsinger · 05-04-2017, 11:35 AM

Mike,

with several builds/upgrades, each one has smooth, steady pressure with the addition of a return line.

*The ultimate [when rules allow] belt drive pump with bypass regulator

*When rules require an electric pump I like a return style regulator that has a vacuum feature. Even with our radical cams just a few inches of vacuum at low speeds bring the pressure down about 2 - 3 pounds below the wide open [vacuun line removed] setting.

*At light throttle, the engine is less "blubbery" with lower fuel pressure

njk53 · 05-10-2017, 11:48 AM

Before we reworked our complete fuel system we were dead heading the fuel line to the carburetor. We went with a new Aeromotive fuel pump and regulator. It was recommended by Aeromotive to put in a return line which we did. The system to date has been working well with no fuel delivery related issues.

05-04-2017, 08:24 AM	#1
Mike Savelle Member Join Date: Dec 2001 Location: Ontario Canada Posts: 369 Likes: 125 Liked 7 Times in 5 Posts	return line building another sb stocker for my son , do I need a return line for this carburetor engine?

05-04-2017, 08:29 AM	#2
Dave Turner VIP Member Join Date: Oct 2005 Location: Schomberg, ON, Canada Posts: 1,222 Likes: 1,606 Liked 364 Times in 138 Posts	Re: return line Hi Mike...I used a -8AN return in my fuel system. I don't regret spending a little extra on hose, fittings and the regulator to get the benefits as compared with the dead head style. Very consistent pressure at all times. __________________ Dave Turner SS/GT #1153

05-04-2017, 11:35 AM	#3
Dragsinger VIP Member Join Date: Jul 2008 Location: Liberty City [East Texas] Posts: 1,760 Likes: 5 Liked 99 Times in 60 Posts	Re: return line Mike, with several builds/upgrades, each one has smooth, steady pressure with the addition of a return line. The ultimate [when rules allow] belt drive pump with bypass regulator When rules require an electric pump I like a return style regulator that has a vacuum feature. Even with our radical cams just a few inches of vacuum at low speeds bring the pressure down about 2 - 3 pounds below the wide open [vacuun line removed] setting. *At light throttle, the engine is less "blubbery" with lower fuel pressure __________________ Larry Woodfin 471W

05-10-2017, 11:48 AM	#4
njk53 Senior Member Join Date: Jul 2007 Location: East China, MI Posts: 504 Likes: 0 Liked 0 Times in 0 Posts	Re: return line Before we reworked our complete fuel system we were dead heading the fuel line to the carburetor. We went with a new Aeromotive fuel pump and regulator. It was recommended by Aeromotive to put in a return line which we did. The system to date has been working well with no fuel delivery related issues. __________________ Nelson Kowal Stock 345