Electric fuel pump conversion (pics)
Elder User
Joined: Sep 2014
Posts: 862
Likes: 7
From: like subarctic, brrr man!
Not OP, but maybe I can help.
I used a OE fuel pump and tank from a 90's truck. High pressure fuel can push a long way! If your having problems with vapour lock, and are trying this setup then mount the Fuel regulator close to the carb away from heat sources. I used a Holly 12-803BP By-Pass Regulator when I was transitioning from carb to efi. The Holley 12-803BP looks the same as the regulator in a photo above.
As for wiring the fuel pumps, I used a couple of relays. One was switching front/rear tanks (Dual tanks), and the other was to turn on fused battery power on/off when the ignition was switched on and on start. One snafu was that I had to use two wires to keep the relay switched on. I used the plug going to the Ford Duraspark ICM module. And Diodes and a relay... and complicated things. :L Anyway, here's the post I made: https://www.ford-trucks.com/forums/1...l#post15487092
I used a OE fuel pump and tank from a 90's truck. High pressure fuel can push a long way! If your having problems with vapour lock, and are trying this setup then mount the Fuel regulator close to the carb away from heat sources. I used a Holly 12-803BP By-Pass Regulator when I was transitioning from carb to efi. The Holley 12-803BP looks the same as the regulator in a photo above.
As for wiring the fuel pumps, I used a couple of relays. One was switching front/rear tanks (Dual tanks), and the other was to turn on fused battery power on/off when the ignition was switched on and on start. One snafu was that I had to use two wires to keep the relay switched on. I used the plug going to the Ford Duraspark ICM module. And Diodes and a relay... and complicated things. :L Anyway, here's the post I made: https://www.ford-trucks.com/forums/1...l#post15487092
New User
Joined: May 2019
Posts: 1
Likes: 0
Fuel gauge back!
Hello, first off I like what you did! I just wanted to know what you did to get your fuel gauge back? I have a 85 f250 that the original Owner had electric pumps in tanks installed for a 460. I want to remove them and insatll just a sending unit and follow a similar set up to yours.
Also did I you get a different relay with more connections to accommodate for the additional wiring?
Also did I you get a different relay with more connections to accommodate for the additional wiring?
New User
Joined: Apr 2020
Posts: 1
Likes: 0
Parts list
Hey there fmc400 I was wondering if you had a legit parts list? I have an ‘81 4.9 300 that I’m doing this conversion on (pretty much a direct copy). I have the pump and the Hobbs switch, but as far as the relay and the other fittings, I don’t really know what to get. If you could email me the list that would be perfect! Thanks again! Happy Fording!
FTE Emeritus
Joined: Jan 2006
Posts: 2,288
Likes: 200
From: springfield Missouri area
Here is a switch, from what I can tell it just runs the power wire thru it and breaks connection when crashed.
https://www.oreillyauto.com/detail/b...=18-1685&pos=0
https://www.oreillyauto.com/detail/b...=18-1685&pos=0
Tuned
Joined: Feb 2016
Posts: 281
Likes: 16
It's been a while since this thread was active but am hoiping someone here can let me know if this version of a fuel pump controller would work just as good as the oil pressure switch:
FTE Stories
Ford Trucks for Ford Truck Enthusiasts
10 Things Every Truck Owner NEEDS (2026 Edition)
Michael S. Palmer
Rezvani's Latest Post-Apocalyptic Monster Is a Ford F-150 Raptor Underneath
Verdad Gallardo
Top 10 Most Expensive Ford Trucks Ever Sold on Bring a Trailer
Joe Kucinski
2027 Ford Super Duty Buyer's Guide (Every Model, Engine, & Package)
Brett Foote
Top 10 Ford Truck Tragedies
Joe Kucinski
AEV FXL Super Duty - the Super Duty Raptor Ford Doesn't Make
Brett Foote
Lobo Vs Lobo: Proof the F-150 Lobo Should Be Even Lower!
Michael S. Palmer
Ford's 2001 Explorer Sportsman Concept Looks For a New Home
Verdad Gallardo
10 Best Ford Truck Engines We Miss the Most!
Joe Kucinski
Laughing Gas
Joined: Jan 2016
Posts: 828
Likes: 66
From: Hartford, WI
It's been a while since this thread was active but am hoiping someone here can let me know if this version of a fuel pump controller would work just as good as the oil pressure switch:
Amazon.com: Revolution Electronics Electric Fuel Pump Controller. Primes the pump on key-on and turns the pump off if the engine stops. : Automotive
Amazon.com: Revolution Electronics Electric Fuel Pump Controller. Primes the pump on key-on and turns the pump off if the engine stops. : Automotive
The link you show to the one on Amazon I did look at as well but from what I understand it has to also be hooked up to a tachometer? You might want to double check that. If so and you don’t have a tach….probably a deal breaker on that set up.
Tuned
Joined: Feb 2016
Posts: 281
Likes: 16
My set up is pretty similar to the original ops set but mine is on a 460 engine.
The link you show to the one on Amazon I did look at as well but from what I understand it has to also be hooked up to a tachometer? You might want to double check that. If so and you don’t have a tach….probably a deal breaker on that set up.
The link you show to the one on Amazon I did look at as well but from what I understand it has to also be hooked up to a tachometer? You might want to double check that. If so and you don’t have a tach….probably a deal breaker on that set up.
Fleet Mechanic
Joined: Jul 2013
Posts: 1,997
Likes: 237
From: NE Ohio
the description stated if you don't have a tach just connect to negative on coil. I don't have anything else to add, haven't used it myself.
Thread
Thread Starter
Forum
Replies
Last Post
bigbird189
1980 - 1986 Bullnose F100, F150 & Larger F-Series Trucks
7
Jun 5, 2016 11:49 AM
colorado hick
1973 - 1979 F-100 & Larger F-Series Trucks
12
Jan 2, 2016 03:32 PM