72 Stang to EFI conversion

[Frederic Breitwieser]

>HO from a 90 mustang in my 72. I've talked to the people at windsor-fox and
>they pointed out only a few mods that needed to be taken care of to get this
>thing to bolt in. My big problem is I don't know exactly what emmisions
>components I need in order to keep the computer from f-ing up. All I have

My advice is as follows, though a little on the expensive side.

First, whenever possible, its best to swap the ENTIRE powertrain assembly
over, including the ECM, harness, all sensors and hoses, etc, because then
your troubleshooting will be reduced to "what did I forget to connect"
versus "what does this ECM need?", a much simpler process.  Being your
vehicle is 1972, you don't need more than a PVC valve, a charcoal canister,
and a cat converter.  The rest of it you can toss, however your ECM will be
expecting certain sensors and plumbing to be there.

Your other alternative is to purchase something like a Haltach or
Electromotive after-market engine management system, which you can hook up
yourself.... both units have screw terminals and well-documented
instruction booklets.

How I would choose between the to choices, is to realize that an
aftermarket ECM system would probably fall into the $1400-1800 range, and
depending if you have to buy the missing components from a retailer, or can
dig them out of a junkyard, you could save from there.

Hope I helped :)

BTW, the swap you are doing is fairly easy mechanically... did you bring
the new transmission over as well?  If you did, you have to have your
driveshaft length changed, but other than that, its a nice, reliable setup.
 Plus, you don't have to spray crud in your motorcraft carb anymore :)

Lastly, I do believe Ford does sell the appropriate harness for your setup
through their Motorsports division, which most of the dealers have access
to, part wise.


Frederic Breitwieser
Bridgeport, CT 06606
http://www.xephic.dynip.com/

1993 Supercharged Lincoln Continental
1989 4-Door Softtop Humvee (Hummer)
2000 Buick GTP (Mid-engine track car)

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