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  Wiring Holley blue elec. pump help

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Author Topic:   Wiring Holley blue elec. pump help

Posts: 725
From: Sarasota, Fla. USA
Registered: Jun 99

posted 07-08-2001 10:49 PM     Click Here to See the Profile for Gary   Click Here to Email Gary     Edit/Delete Message   Reply w/Quote
Whats the esiest way to wire in my Holley Blue elec. fuel pump? Pump is located in front of my fuel cell. I have mounted my battery in the trunk on passenger side. Where is the best and easiest place to wire the pump into?
Man, wiring is my gray area, I can read OE diagrams pretty good but wiring in aftermarket stuff is sometimes greek to me. Basicly I want the easy way and best install.
Thanks for your help
PS Iv'e asked this question before but lost my notes
From what I gather,
Ground from pump just to chassis frame, and tap fuel pump hot wire into ignition (red with green wire on car) but where?

[This message has been edited by Gary (edited 07-08-2001).]

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Posts: 737
From: Gadsden, Al
Registered: Aug 99

posted 07-09-2001 12:50 AM     Click Here to See the Profile for Dave_C   Click Here to Email Dave_C     Edit/Delete Message   Reply w/Quote
I have had a blue pump on my car for years. Recently switched to a black pump when the blue finally wore out. Stayed with this design since all the plumbing /brackets /wiring was in place.

You need to use a relay. Running a hot wire all the way from front to back for the fuel pump is not good, amperage draw goes up. Using a relay lets you run just a small wire all the way back. The small wire only throws the internal switch in the relay, so it doesn't have to be large. Get one for about $5 at a parts store. I use the kind like they seel for use with off-road driving lights. 30amp, heavy duty.

Wire it like this:
10ga wire from battery terminal (or better yet the emergency cutoff switch for the battery) to the + terminal on the relay.

Small 16-18 ga wire from the ignition switch wire (or seperate switch) to the switch terminal on the relay.

Orange wire from the blue pump to the load terminal on the relay (good idea to use an inline fuse holder in between here)

Ground terminal on the relay grounded to the same place as the black wire from the pump.

I use crimp on connectors, but also solder them in place and then cover the joint with heat shrink tubing.


David Cole

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Posts: 359
From: Jasper, TN, USA
Registered: Dec 2000

posted 07-09-2001 09:45 AM     Click Here to See the Profile for SG236   Click Here to Email SG236     Edit/Delete Message   Reply w/Quote

Mine is wired just like Dave's and it works perfect!

Russ Hood
70s Maverick S/Pro

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