GM Alternator in '65

[ttweed]

undefinedI have '65 coupe with a 1990 5.0 that's been built to 340 HP at the flywheel. I've also modified it to be a GT "clone". The modification in question deals with converting from the early Falcon style instrument cluster to a five gauge cluster found in the '65 GT and "Pony" interior cars. Using California Mustang's "Mustang How To Volume 1" tech article found on page 44 I sucesessfully modified my car to use the five gauge cluster. Due to recent budget constrants I recently horse-traded for a nice chrome 140 amp three wire internally regulated GM (Delco S10) alternator. I had someone tell me to "...just disconect everything from your old Ford 35 amp alt. and run a large gauge wire to the large positive post on the solenoid..." Well, this didn't work and nothing inside the car had power now and the ignition doesn't start the car. I just purchased a two-wire connector harness that plugs into the top of the GM alternator. Wire one is supposed to go to a switched power source and wire two goes to a battery source. Anybody who has done this conversion please clue me as to what I need to connect and/or reconnect. I miss driving my car!

 

[BlueMonster65]

i used a powermaster GM 12SI one wire and you run a short wire from the alt to the pos. battery post. i removed the volt. reg and taped off the harness. it worked fine. however, it sounds like the alt. you have is not a true one wire. or it requires some modification for it to be a one wire. you can use the GM10si as a regular alt. with your exisitng harness and volt reg. you just need to make sure the field, bat, stator and ground of the alt. are connected to there respective counterparts on the volt reg. i forget which is which on the GM alt. it should tell you either on it or some where in the instructions if you were fortunate enough to get them.

 

[gp001]

This guy might be able to help if no one else does.

http://www.madelectrical.com/catalog/alt-1.shtml

 

[ttweed]

Thanks, Guys!

I'm going to give the guys at M.A.D. a call, the kit is cheap enough. It is indeed a three wire alternator. Again, thanks for your input.

FYI, my car has a Tremec 5 speed and four wheel disc brakes. Also it has JBA shorty headers with an x-pipe, 2 1/2" dia pipe through a pair of Flowmaster 2 chamber mufflers.

Sometime in the future...a stroked 351W!

Tom T.

 

[BlueMonster65]

maybe i should read more carefully....DOH.
i see it is a 3 wire that you bought. you can get a kit from www.summitracing.com to convert it to a one wire if you desire.