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Author Topic: 2.3 EFI Swap/Install Information.  (Read 12653 times)

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Offline 77turbopinto

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2.3 EFI Swap/Install Information.
« on: February 27, 2006, 11:18:04 AM »
Installing an EFI engine, or just adding the EFI to a stock n/a 2.3 will be just about the same ammount of work as a t/c-svo turbo swap. The only differences would be in the power, modification of the right front area of the engine bay, and the heater blower motor on non a/c cars. You will need the computer, harness, sensors, fuel pump..... (see the turbo swap thread in this section for more details) you will also run into hood clearence issues too. Because Pinto's never came with EFI, many parts will need to be custom made or modified.

A 2.3 EFI engine can be fitted with the stock 2.3 pinto manifolds and carb (and the other way around), DEPENDING on the engine, it's year, and the dissy. There are some EFI's with an 8 plug head, others with just 4, and some of the 2.3's are dissy-less. Some of the intakes are different, and will need to have a hole or two re-located on the head.

I don't have ALL the details on what parts will directly interchange due to the many variations of parts that are out there, but this thread is here to let others know that there are issues to overcome with this "swap", and I hope to get input from others posted here.

IMHO: If you are going to do this much work, go with the turbo swap and at least have some power for all your efforts.

Bill
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Offline joecool85

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Re: 2.3 EFI Swap/Install Information.
« Reply #1 on: August 04, 2006, 01:25:02 PM »
From the research I've done if you want to do an EFI 2.3 turned to carb'd, you would need a pre 1995 engine as thats when (from my understanding) Ford went to a EDIS (electronic distributorles s ignition system) setup.  You also need to make sure it only has 4 spark plugs.  From what I gather, other than that you should be pretty good just putting on an older carb manifold setup on top and pretty much be good to go.  Although I'm not sure you'd want to keep the 9.5:1 CR that the new motors have. 

The other thing is I've heard of different ports on the 2.3, something about some being oval and others being D shaped.  At least, I'm pretty sure it was the 2.3
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Offline 77turbopinto

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Re: 2.3 EFI Swap/Install Information.
« Reply #2 on: September 23, 2007, 09:00:01 PM »
From the research I've done if you want to do an EFI 2.3 turned to carb'd, you would need a pre 1995 engine as thats when (from my understanding) Ford went to a EDIS (electronic distributorles s ignition system) setup.  You also need to make sure it only has 4 spark plugs.  From what I gather, other than that you should be pretty good just putting on an older carb manifold setup on top and pretty much be good to go.  Although I'm not sure you'd want to keep the 9.5:1 CR that the new motors have. 

The other thing is I've heard of different ports on the 2.3, something about some being oval and others being D shaped.  At least, I'm pretty sure it was the 2.3

You COULD just use a DIS engine, I have seen it done in a Pinto.

Yes, there are different ports, but most of the manifolds will interchange, you just might need to drill and tap a hole.

Bill
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Offline pintoguy76

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Re: 2.3 EFI Swap/Install Information.
« Reply #3 on: October 15, 2007, 07:28:56 PM »
I have another question. I've got a 79 pinto, came with a 2.3/C3. Since the engine is toast im considering just installing a used 2.3 turbo instead of rebuilding the engine i took out anyways. It would be about the same cost probably and id have the benefit of the EFI and the turbo. It might be hard on the C3 but i think it'd take it. My question is. Can I move the oxygen sensor down in the downpipe a little or have it turned another direction in the elbow from the turbo so that i can keep the heater motor? Might sound wimpy of me but its really almost a necessity especially where the windows fog up so bad and fingers get so cold they hurt. It barly works in my 76 and i dont expect it to work too well in this 79 since its sat so long. Im betting theres alot of solidified crap in the heater core, based on the appearance of all the hoses and things. Grab ahold of them and you can hear them crack and stuff on the inside. So the heater core is gonna get replaced, along with the heater core. Dont look forward to that seeing as everyone says its so difficult. Anyways that was my question, the oxygen sensor location. Thanks guys ;)
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Offline 77turbopinto

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Re: 2.3 EFI Swap/Install Information.
« Reply #4 on: October 15, 2007, 08:23:52 PM »
In Connie's car, I moved the O2 to the side BUT the elbow was still making contact; I modified the elbow and fabricated a heat shield too.

Yes, you can move it, BUT not too far down.

BTW: You might want to post this Q in the turbo thread. I think I have a link to Connie's turbo install there.

Bill
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Offline dave1987

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Re: 2.3 EFI Swap/Install Information.
« Reply #5 on: October 27, 2008, 06:55:56 PM »
So when adding fuel injection to a carb'd 2.3, is it possible to just add the manifolds, install the harness and computer with an O2 sensor and be done with it (aside form the distributor)? Does head work need to be done for this conversion to work?
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Offline 77turbopinto

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Re: 2.3 EFI Swap/Install Information.
« Reply #6 on: October 27, 2008, 07:51:25 PM »
So when adding fuel injection to a carb'd 2.3, is it possible to just add the manifolds, install the harness and computer with an O2 sensor and be done with it (aside form the distributor)? Does head work need to be done for this conversion to work?

You should not need to change the exhaust, just can just add an O2 bung to the pipe.

The head will need a hole drilled to mount the manifold (non-dual plug stuff here, thanks), and you might also need to do some trimming to the alt. mount bracket.

You will need to install an EFI fuel pump and inline filter.

Hood clearence is still an issue.


Please note that I have never swapped to a N/A 2.3 EFI, but I have done the 2.3T (more involved).


Bill
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