Old School fuel delivery?
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Junior User
Joined: Feb 2007
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Old School fuel delivery?
I have a 1994 F150 with the 302. Has anyone out there removed the high pressure fuel system and replaced it with a good old fashioned carb? Is there a place on the block for a mechanical style pump?
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Junior User
Joined: Feb 2007
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Yeah, I keep thinking the same thing but then all the thing does is jerk, jump, and spit. I want more power anyway; MUCH more. I guess I am looking for a reason to put some good heads in place and I feel that the current induction system won't be up to the task...
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If you really want to it can be done. First you should ask yourself what your goals are. As everyone else has pointed out it may be more realistic (and cost effective) to stick with the fuel injection. There are 1000+ hp engines out there running efi. If you have an electronically controlled automatic transmission you would have to buy an expensive stand-alone transmission control unit or be skilled enough to fabricate brackets and wire in the necessary sensors. A manual trans swap to avoid that issue can also be expensive. You need to re-vamp your ignition system as well as your fuel system. Here are some links to threads I have participated in regarding a carb conversion which should give you some idea of what's involved:
https://www.ford-trucks.com/forums/4...-92-truck.html
https://www.ford-trucks.com/forums/6...arb+conversion
http://www.corral.net/forums/showthread.php?t=908443
http://www.corral.net/forums/showthread.php?t=813727
On my truck I did not remove the high pressure fuel system but used a return style fuel pressure regulator to reduce the fuel pressure to carb requirements. I did not use a mechanical fuel pump because that requires the cost of changing the timing cover, adding a fuel pump eccentric and extending the fuel line.
https://www.ford-trucks.com/forums/4...-92-truck.html
https://www.ford-trucks.com/forums/6...arb+conversion
http://www.corral.net/forums/showthread.php?t=908443
http://www.corral.net/forums/showthread.php?t=813727
On my truck I did not remove the high pressure fuel system but used a return style fuel pressure regulator to reduce the fuel pressure to carb requirements. I did not use a mechanical fuel pump because that requires the cost of changing the timing cover, adding a fuel pump eccentric and extending the fuel line.
Post Fiend
Joined: May 2004
Posts: 11,289
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From: Lakewood, Ohio
in other words, even though it can be done, you really would have to want to do this.
leave it efi and modify that if you feel the need.
leave it efi and modify that if you feel the need.
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Lead Driver
Joined: Feb 2003
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From: Oak Harbor, OH
You can convert it to MAF (mass air flow) in a weekend, then it will handle better heads, a bigger cam, and headers. I really wouldn't be one to try to lose the smog controls as it's a hefty fine if someone finds out. It's not likely to happen, but it has and will.
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Junior User
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Mass Air Flow
I guess I must be a little naive but I thought the truck already had a mass air flow sensor. What do you mean when you say it would take a weekend to convert it? Would it be using the current injectors, etc. What would it cost to do this, as I would like to upgarde the heads...
Elder User
Joined: Mar 2006
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Fords seems to phase its product in and out. The good part is that you can have an earlier model with later technology but the bad part is that you don't have a hard and fast date for that development. That makes it hard when looking for parts (and advice) unless you know exactly what you have. Since you have mass air you can have your computer tuned with a chip. You may even be able to use something like a tweecer or PMS if you want to do the tuning yourself. I'm more familiar with those things in relation to Mustangs but someone around here should know.