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12-16-2013, 11:31 PM
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#1 |
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Registered User
Join Date: Dec 2013
Location: DALLAS, TX
Posts: 268
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Fuel Pump ???
I just got a new fuel pump, but it only has 2 ports while my current pump has 3. I know that the "extra" line is a return. is the return line necessary on a 72? or can I run the new pump without the return with no issues??
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12-17-2013, 12:09 AM
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#2 |
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Registered User
Join Date: Sep 2012
Location: San Antonio, TX
Posts: 1,026
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Re: Fuel Pump ???
I just did this to mine. Installed a 2 port fuel pump and just left the one coming from the tank unhooked. No problems. Many people do this
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Jeff 1972 Cheyenne Super SWB 350, Auto, Bucket Seats w/Console, Tach, Factory A/C, P/S ,P/B, Tilt 1998 Chevy 1500 Ext Cab 5.7, Pewter w/blue interior |
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12-17-2013, 07:28 AM
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#3 |
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Registered User
Join Date: Dec 2013
Location: DALLAS, TX
Posts: 268
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Re: Fuel Pump ???
I didn't think it would be a problem. but I wasn't completely sure! thanks
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12-17-2013, 10:01 AM
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#4 |
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Registered User
Join Date: Apr 2008
Location: Oregon City, Oregon
Posts: 741
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Re: Fuel Pump ???
What pressure does the carb need and how much pressure/flow does the pump produce? If it is a high pressure/volume pump you should run a return line. If not I believe the pump won't last as long. Don't know all the details but I remember that from when I installed my blazer tank (and used the in tank pump).
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12-17-2013, 10:06 AM
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#5 |
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Registered User
Join Date: Dec 2013
Location: DALLAS, TX
Posts: 268
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Re: Fuel Pump ???
it is a high pressure pump. I do have an adjustable pressure regulator set at 6 psi.
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12-17-2013, 12:05 PM
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#6 |
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Parts and more parts
Join Date: Nov 2003
Location: Lebo, Kansas (middle of nowhere
Posts: 6,821
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Re: Fuel Pump ???
What brand of fuel pump did you purchase? I put an Edelbrock fuel pump on my 84 and it only had the two ports, where the factory installed one had three. I found that I had some issues with the fuel line getting vapor locked, so I purchased the Edelbrock lower plate that has four ports in it and made a small outlet for the return line. This solved some of my overheating of the fuel and allowed for me to run a high pressure pump without issue.
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Frank |
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12-17-2013, 03:37 PM
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#7 |
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Registered User
Join Date: Dec 2013
Location: DALLAS, TX
Posts: 268
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Re: Fuel Pump ???
I also have the high pressure edelbrock. where did you get the plate??
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12-17-2013, 04:47 PM
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#8 |
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Parts and more parts
Join Date: Nov 2003
Location: Lebo, Kansas (middle of nowhere
Posts: 6,821
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Re: Fuel Pump ???
part number out of Edelbrock on-line catalog and ordered from Summit Racing
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Frank |
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