fuel pump question
Thread Starter
|
Freshman User
Joined: Aug 2006
Posts: 39
Likes: 0
fuel pump question
Hi there.
I've got an 87 f150 fuel injection system that's currently sitting on an early 70's 302 block with big plug heads. The thing never ran worth a **** with that motor so I'm gonna throw on a carb this weekend. (couldn't locate all the right parts to do a MAF swap, I've got stuff from a 96 but its the wrong computer)
Just a quick question on the fuel pump issue... can I use the electronic one or is it too powerful?
Also, the truck is an automatic 4x4... is anything in the transmission or the transfer case electronically controlled via the computer?
Has anyone done this kind of backwards swap before? Problem/issues?
Any tips are welcome, thanks for replies in advance.
I've got an 87 f150 fuel injection system that's currently sitting on an early 70's 302 block with big plug heads. The thing never ran worth a **** with that motor so I'm gonna throw on a carb this weekend. (couldn't locate all the right parts to do a MAF swap, I've got stuff from a 96 but its the wrong computer)
Just a quick question on the fuel pump issue... can I use the electronic one or is it too powerful?
Also, the truck is an automatic 4x4... is anything in the transmission or the transfer case electronically controlled via the computer?
Has anyone done this kind of backwards swap before? Problem/issues?
Any tips are welcome, thanks for replies in advance.
FTE Legend
Joined: Jun 2006
Posts: 31,930
Likes: 1,499
From: Ottawa, Ontario
That truck should have low pressure pumps in the tanks and a high pressure pump on the frame, so you could simply remove the high pressure pump and have something that is carb friendly. There were no electronic trannys used back then either so you won't have that to deal with, likely you have a C6 3-speed or AOD 4-speed. You will of course have to install an ignition system and matching distributor and do something with the under hood wiring. It's very likely the cam in the motor right now is what is causing the problems with the EFI system, swapping in something EFI friendly would make a big difference and would also be less work than a carb conversion but to each his own.
Thread Starter
|
Freshman User
Joined: Aug 2006
Posts: 39
Likes: 0
Thanks for the reply.
The big deal is that I have all the parts I need for the carb conversion due to the motor I'm building for my Mustang so I figured I'd just build my Mustang motor in my truck for now. I figure a fuel pressure regulator might be the route I go, I guess I could also just delete the high pressure pump.
As far as coils go... will the stock EFI one work with a dual-point distributor?
You're right about the cam issue, which is why I wanted to convert it to a MAF system but the headache is too much for me, I've got 2 other projects that require my attention. Most likely I'll leave alot of the EFI stuff in there for when I find the proper doner for it later.
Thanks for the help.
The big deal is that I have all the parts I need for the carb conversion due to the motor I'm building for my Mustang so I figured I'd just build my Mustang motor in my truck for now. I figure a fuel pressure regulator might be the route I go, I guess I could also just delete the high pressure pump.
As far as coils go... will the stock EFI one work with a dual-point distributor?
You're right about the cam issue, which is why I wanted to convert it to a MAF system but the headache is too much for me, I've got 2 other projects that require my attention. Most likely I'll leave alot of the EFI stuff in there for when I find the proper doner for it later.
Thanks for the help.
FTE Sponsor
Joined: Aug 2006
Posts: 755
Likes: 0
Thanks for the reply.
The big deal is that I have all the parts I need for the carb conversion due to the motor I'm building for my Mustang so I figured I'd just build my Mustang motor in my truck for now. I figure a fuel pressure regulator might be the route I go, I guess I could also just delete the high pressure pump.
As far as coils go... will the stock EFI one work with a dual-point distributor?
You're right about the cam issue, which is why I wanted to convert it to a MAF system but the headache is too much for me, I've got 2 other projects that require my attention. Most likely I'll leave alot of the EFI stuff in there for when I find the proper doner for it later.
Thanks for the help.
The big deal is that I have all the parts I need for the carb conversion due to the motor I'm building for my Mustang so I figured I'd just build my Mustang motor in my truck for now. I figure a fuel pressure regulator might be the route I go, I guess I could also just delete the high pressure pump.
As far as coils go... will the stock EFI one work with a dual-point distributor?
You're right about the cam issue, which is why I wanted to convert it to a MAF system but the headache is too much for me, I've got 2 other projects that require my attention. Most likely I'll leave alot of the EFI stuff in there for when I find the proper doner for it later.
Thanks for the help.
If you decide to get a new distributor, consider our custom curved Duraspark Distributor built with our new Full Length Oil Impregnated Bronze Bushing. The full length bushing improves timing stability and spark scatter. If stock appearance is not an issue, take a look at our one piece D.U.I. Distributor. Whether you choose the Duraspark or the D.U.I., we curve each on a distributor machine based on your engine combination. Please see them at:
http://performancedistributors.com/forddistributors.htm
Also, there is now an excellent installation article on the D.U.I. Distributor on the Ford-Trucks.com site at:
https://www.ford-trucks.com/article/idx/0/358/article/DUI_Ignition_Installation_In_A_Ford_351W_V8.html
Ignition Lesson of the Month: Hystereses, the difference between the timing as the rpm and vacuum increases to the timing as rpm and vacuum decrease, needs to be kept to a minimum. A precise advance curve accomplishes this.
__________________
FTE Sponsor
Performance Distributors
www.PerformanceDistributors.com
FTE Sponsor
Performance Distributors
www.PerformanceDistributors.com
