70 GTO conversion to single wire alt and MSD distributor ? factory wires? - Hot Rod Forum : Hotrodders Bulletin Board
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Old 08-12-2019, 11:03 AM
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70 GTO conversion to single wire alt and MSD distributor ? factory wires?

Guys,

I just converted my 70 GTO to a single wire alternator (Powermaster 100A) and an MSD distributor. Since this is an internally regulated alternator, what do I do with the voltage regulator and all the wires from them? Also, What do I do with the extra wires for the alternator that I no longer need? Thanks for your help.

Mike

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Old 08-12-2019, 08:52 PM
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Do a search for "CS to SI alternator conversion". That will show how two of the regulator wires just connect to the other two on an internally regulated conversion like mine, in which the alt technically has three wires I think. Your whizbang hundred amp job may be different from that though. Hopefully instructions are available at the manufacturer's website if none were included in the package. But if you are left with a wire that goes nowhere... heck, remove it at the firewall connector.
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Old 08-14-2019, 04:03 PM
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Thanks for the reply. I looked online and found some good videos on U-tube. Powermaster's website was not much help. Another question: For the single wire that is supposed to go to the battery, is there a reason it couldn't go to the terminal end of positive battery cable on the starter? I'm asking because I have the factory battery cables on the car and they are currently the spring clip style and there is nowhere to attach the wire from the alternator. I'm thinking I could get to the battery by attaching it to the same starter lug that the positive battery cable is attached to. Is that possible?

Mike
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Old 08-14-2019, 06:36 PM
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That is how GM pretty much does it any way. Hook to the big lug (positive cable end) at the starter.Use a fusible link to protect the wiring.

The extra wires are not needed as a one wire alternator is just that, one wire.

Just tape them into the harness.
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