Installing Electric Fuel Pump, Need Help
Thread Starter
Melting Slicks
Joined: Sep 2004
Posts: 2,412
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Installing Electric Fuel Pump, Need Help
This week I'm going to install a Holley Black electric fuel pump. I have a few questions.
I plan to install the pump below the tank where the spare tire use to be, but all of the metal lines are up top. Can I run rubber lines from the top of the tank down to the pump inlet and also run rubber lines back up to the metal lines on top of the tank from the pump outlet? Will that be putting too much strain on the pump? Do I need to cut the metal lines somewhere down lower and flare them out?
For the electrical I'm sure that I'll be able to figure most of it out, but the oil pressure safety shut off loop confuses me. Do I need to buy this or can I just use my stock oil pressure sensor? If not, where do I mount this other oil pressure sensor? The only other port that I can think of is up near the intake manifold, but it would look real ugly sitting up there.
I plan to install the pump below the tank where the spare tire use to be, but all of the metal lines are up top. Can I run rubber lines from the top of the tank down to the pump inlet and also run rubber lines back up to the metal lines on top of the tank from the pump outlet? Will that be putting too much strain on the pump? Do I need to cut the metal lines somewhere down lower and flare them out?
For the electrical I'm sure that I'll be able to figure most of it out, but the oil pressure safety shut off loop confuses me. Do I need to buy this or can I just use my stock oil pressure sensor? If not, where do I mount this other oil pressure sensor? The only other port that I can think of is up near the intake manifold, but it would look real ugly sitting up there.
Last edited by enkeivette; May 7, 2006 at 07:06 PM.
Pro
Joined: Jun 2005
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St. Jude Donor '09, '24
For electric pumps it is best to have the pump sitting below the tank so gravity can feed it gas directly. With the lines over the top of the tank this is not going to happen. Competition Engineering sells a fuel sump that you can weld on to the bottom of your stock tank. Comes with NPT style outlets so the gas line can be run to the pump with no problems. I believe the major speed shops sell a T connector that runs in between the block and stock sensor so you can mount the new oil sensor there. You will be getting your pressure readings right off the pump that way for more accuracy to the sensor, houstonvett
Thread Starter
Melting Slicks
Joined: Sep 2004
Posts: 2,412
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Well I'd rather not butcher my gas tank. And I've seen someone on this forum who had a Holley Blue or Red style pump. So I know it can be done.
And I will mount it below the gas tank, the lines will be up top but Holley tech told me that this would be ok as there would be a spihoning effect.
My main question is however, can I run gas back up to the metal lines on top of the tank or do I need to cut the metal lines and send the fuel to them at a lower point?
And I will mount it below the gas tank, the lines will be up top but Holley tech told me that this would be ok as there would be a spihoning effect.
My main question is however, can I run gas back up to the metal lines on top of the tank or do I need to cut the metal lines and send the fuel to them at a lower point?
Melting Slicks
Joined: May 2002
Posts: 2,716
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From: Sulphur LA
St. Jude Donor '05-'06,'11,'13-'14,'16,'18,'19,'24, '25
I have been wondering the same thing, after seeing some pics of a 77 with the body off it looks like the best option is to drop the tank and do as you have been thinking connect to the tank on the pump inlet and than connect to the metal line going to the front of the car on the top of the frame near the tank.
Neal
Neal
Drifting
Joined: Dec 2004
Posts: 1,345
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Originally Posted by torqvette
Well I'd rather not butcher my gas tank. And I've seen someone on this forum who had a Holley Blue or Red style pump. So I know it can be done.
And I will mount it below the gas tank, the lines will be up top but Holley tech told me that this would be ok as there would be a spihoning effect.
My main question is however, can I run gas back up to the metal lines on top of the tank or do I need to cut the metal lines and send the fuel to them at a lower point?
And I will mount it below the gas tank, the lines will be up top but Holley tech told me that this would be ok as there would be a spihoning effect.
My main question is however, can I run gas back up to the metal lines on top of the tank or do I need to cut the metal lines and send the fuel to them at a lower point?
I've been running a Holley Red Pump for over 20 years (one replacement - it lived for over 100,000 miles). The pump will easily self prime if you route rubber lines to the intake. Once through the pump it has MORE than enought power to push the fuel ANYWHERE in the car you want it to go!!
I have sidepipes so I mounted it inside the frame rail on the passenger side ahead of the bumper brackets.
