EFI tank question
Thread Starter
|
Posting Guru
Joined: Jan 2014
Posts: 1,083
Likes: 0
From: Where the Army sends me
EFI tank question
I am considering injecting my 400. I talked to the company I'm looking to procure the EFI kit from about fuel supply. We agreed it would be best to swap in some later model tanks with electric fuel pumps. My question is more of a request. Does anyone have any good shots of the fuel pump setup on the injected gas trucks? I want to know where the pump is and how hard it would be to change out. I also want to keep the dual tanks.
Thanks in advance.
Thanks in advance.
Post Fiend
Joined: Dec 2007
Posts: 8,521
Likes: 16
From: Lost
These older trucks with EFI typically had a low pressure pump in the tank, and a high pressure pump on the frame. Dual tank trucks had 2 low pressure pumps, and use a different tank selector valve to activate the pump as well as switch tanks.
Converting to an EFI system using the factory style pumps would be rather involved. Even the tanks themselves would have to be swapped, since the sending unit hole is smaller on the ones without the pump attached.
Many aftermarket EFI setups that are intended to replace a carb, use an inline fuel pump, rather than one in the tank. These pumps are designed to work as both a puller and pusher. This would be the easiest way to go. Just mount this type of pump as close to the switching valve as possible, on the engine side.
Converting to an EFI system using the factory style pumps would be rather involved. Even the tanks themselves would have to be swapped, since the sending unit hole is smaller on the ones without the pump attached.
Many aftermarket EFI setups that are intended to replace a carb, use an inline fuel pump, rather than one in the tank. These pumps are designed to work as both a puller and pusher. This would be the easiest way to go. Just mount this type of pump as close to the switching valve as possible, on the engine side.
Posting Guru
Joined: Apr 2011
Posts: 1,636
Likes: 5
From: Orlando area
There is a company that makes an in-tank high pressure pump for older model cars/trucks if you want to go that route, but Rogue's suggestions is cheaper.
In-Tank Fuel Pump Module - PA-Series
In-Tank Fuel Pump Module - PA-Series
Thread Starter
|
Posting Guru
Joined: Jan 2014
Posts: 1,083
Likes: 0
From: Where the Army sends me
There is a company that makes an in-tank high pressure pump for older model cars/trucks if you want to go that route, but Rogue's suggestions is cheaper.
In-Tank Fuel Pump Module - PA-Series
In-Tank Fuel Pump Module - PA-Series
The pump after the selector idea I floated by the guy I talked to, and he said it would cause some major problems for their kit. I'm thinking of digging up some 95 tanks and swapping those in.
Moderator
Joined: Jan 2001
Posts: 56,980
Likes: 2,735
From: Virginia
The low pressure/high pressure pumps idea was Ford first attempt at delivering fuel to the efi engine. The later trucks used just a high pressure pump in the tank, and the switching valve actually operates from the fuel pressure from the pump, no electric to it. I am thinking this later system would be better, but you will have to be able to adapt the fuel lines, they used those o-ring type with the plastic tubing, and you will also need the connector to plug the wiring into, it's all different. A junkyard truck would be the place to get this stuff from, including the wiring.
Thread
Thread Starter
Forum
Replies
Last Post
Montync
1980 - 1986 Bullnose F100, F150 & Larger F-Series Trucks
10
Feb 25, 2017 08:10 PM
BigBully
1973 - 1979 F-100 & Larger F-Series Trucks
5
Nov 13, 2008 02:07 PM
leadmic
Fuel Injection, Carburetion & Fuel System
3
Mar 9, 2004 09:47 PM
