Throwing in the towel. Ditching efi.

[RapidRabbit]

So I have decided to ditch the efi setup I have been working on.

Thinking of pulling the efi off and dropping my carb from old engine and a new edelbrock intake on the 5.0 block. I just want to get the car back on the road.

So my questions are

1. How do I handle fuel delivery.
Mechanical pump?

2. Distributor
Do I need to Change that out?

3. Alternator
How do I hook up the 3g alternator that's already on there.

4. What else needs to be changed?

Thanks guys.

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[kb3]

Sorry to hear you are giving up Pat!

1. You may need to stick with an electric fuel pump as some 5.0s don't have the fuel pump eccentric on the cams.

2. Also, assuming you have the efi distributor in the car right now, that will need to be changed out for another type of electronic distributor as the one you have gets it's info from the computer.

3. The 3G alternator should work, there are plenty of wiring diagrams available on line to help with that

4. ??

 

[stangg]

From what I saw of your underhood pics it looks like your almost there... What's holding you up on the EFI conversion?

 

[RapidRabbit]

Re: Throwing in the towel. Ditching efi.

Mostly just the fuel system holding me back.

Enlisted the help of the local shop I use near me. I had them pick up the car before we moved so I didn't have to tow it to the new house. He pulled it in the shop and went through it. His concern is the fuel pump is higher than the tank and there really isn't a good way to lower it. He wanted to put in an in tank pump and run the fuel lines that way. He suggested maybe just throwing a new intake and carb on and just getting it running. But if I have to stop deal with Changing all that stuff I don't know what to do.

With everything that needs to be done yet he's talking 2-5 thousand to get it finished.

I've realized I'm not capable enough to do the fuel system and don't want to stick that much into an already over budget project.

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[kb3]

hmm...my fuel pump is higher than the tank. It is located under the trunk floor just above the axle, ahead of the tank. I have not had a single problem with it. While I hard lined both feed and return lines, a lot of people are using efi fuel line. I do not have an accumulator tank and pushing over 400hp we have not had a fuel starvation problem.

I do understand the want to throw a carb on and get it running attitude. It may re-energize your want to work on the car if you actually get to drive it this summer!

 

[RapidRabbit]

That's where I mounted the pump. I am just frustrated as usual.

If I still need to use the pump and change all the other stuff then I'm not sure what to do. I'm actually starting to hate the car.

Anyone have a time machine so I can back in time and smack myself for starting this.



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[kb3]

throw the carb and manifold on it....and drive it.

Then start gathering all the parts you are missing for the efi swap, no doubt there will be a day you will want to revisit it.

 

[RapidRabbit]

Thanks.

So, what distributor would I put on?

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[kb3]

you should be able to run any standard Ford electronic ignition distributor, or a Petronix, or even a points distributor as long as the gear is proper for your cam. On my 67 convertible, I am running a 86 5.0 with Ford Duraspark distributor, standard round coil, etc. It does require the Ford electronic ignition box, but all parts are easily found at most auto part stores, fairly cheap too. I have a couple of simple wiring diagrams I can dig up if you decide to go that way.

 

[dodgestang]

I would source one of the GM style units you can guy for $50-60 that has the coil built into the cap and is basically a simple 1 or 2 wire hook up...no muss, no fuss, cheap, and puts you on the road.

 

[stangg]

Re: Throwing in the towel. Ditching efi.

Mostly just the fuel system holding me back.

Enlisted the help of the local shop I use near me. I had them pick up the car before we moved so I didn't have to tow it to the new house. He pulled it in the shop and went through it. His concern is the fuel pump is higher than the tank and there really isn't a good way to lower it. He wanted to put in an in tank pump and run the fuel lines that way. He suggested maybe just throwing a new intake and carb on and just getting it running. But if I have to stop deal with Changing all that stuff I don't know what to do.

With everything that needs to be done yet he's talking 2-5 thousand to get it finished.

I've realized I'm not capable enough to do the fuel system and don't want to stick that much into an already over budget project.

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That's insane... I made an "L" bracket that bolts to the floor and drops the fuel pump to just about the height of the sender. Not hard to do at all.
Which pump do you have?

For what its worth, an in tank pump still needs to draw from the bottom of the tank... so long as your sender is doing the same the pump should be fine if it's reasonably close to the bottom of the tank.

If everything else is ready and all's you need is to mount the pump and run the lines, then I think you should continue on with the EFI.

On the GM HEI... I'd stay away from that... I used a couple of aftermarket HEI distributors on my chebby and found that a lot of the internal parts are not completely compatible with actual GM parts. In other words when it fails, you may as well be prepared to just throw it away and get another.

 

[dodgestang]

Re: Throwing in the towel. Ditching efi.

On the GM HEI... I'd stay away from that... I used a couple of aftermarket HEI distributors on my chebby and found that a lot of the internal parts are not completely compatible with actual GM parts. In other words when it fails, you may as well be prepared to just throw it away and get another.

AT $60.....you just throw it away and but another one. MSD cap and rotor replacements are the same price (if not more)

It has the benefit of being highly disposable if the decision changes and an EFI install is done next winter

 

[jpyoung]

If you still want to consider efi, I saw where NPD sells a fuel tank set up for it. I'm sure it isn't cheap though. Just a thought.

 

[RapidRabbit]

Re: Throwing in the towel. Ditching efi.

So I went out to the garage and pulled my edelbrock carb of my old engine to maybe use it on the other. This is what was under it.

Is that some kind of adaptor to use a 4 barrel carb on a 2 barrel intake.

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[kb3]

Yep. That is how to mount a 4 barrel carb on a 2 barrel manifold. Not worth a plug nickel.

 

[RapidRabbit]

I figured it was. You should have seen the mangled up excuse for a throttle bracket that went with it. Po did some hack job install.

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[AzPete]

Nice.....haven't seen one of those in years....lol

 

[Horseplay]

Can't believe nobody made comment on the $2-5k estimate. Holy hell who is that guy? You can buy a new aftermarket SYSTEM for that kind of money and still have a ton of cash left over. Run away from him as fast as you can.

 

[Fst Blk]

I don't understand why it's would be so expensive either. I could have a super vic modified for a fuel rail with a Wilson elbow with a 90mm throttle body using a a9l Mustang computer for alot less than that. The fule system should be easy enough if your running a returnless style fuel log. Pump and plumbed and your ready to go :dun

Bill

 

[tarafied1]

I don't know jack about EFI but I have an 85 HO 5.0 distributor with the correct gear for a roller cam. It's your's if you want it. I have attached the Duraspark conversion I made on my 67, it's easy and ALL Ford. I've been running this set-up over 24 years (although with a BBF instead of a 302).
I also attached a 3G conversion, I haven't done this yet but planning too. I have the parts...