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Re: 12v conversion for super a
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Posted by John T on February 16, 2007 at 16:15:28 from (66.244.90.5):
In Reply to: 12v conversion for super a posted by GWINN on February 16, 2007 at 16:00:56:
If you really wanna use a true One Wire Alternator, thats a piece of cake to wire, but as compared to a cheaper GM 10 SI 3 Wire, they can take higher RPM to kick in and a few of them (depend on internal regulator circuitry) can cause a very minor trickle discharge when setting. The big main output of a true One Wire Alternator wires to the Load (NOT battery/starter) side of the ammeter, thats the same place where the Gennys Voltage Regulator BAT terminal used to connect. Depends on the alternators amp rating, but Id use at least 10 gauge wire from the alternator to the ammeter and also from the ammeters other Supply side terminal to the battery/starter connection. NOTE 1: If your just now switching from Pos to Negative ground (as most all alternators use) the ammeter leads would now be reversed or it would read bass ackwards. The Supply side wires to the battery/starter and has ONLY one wire while the load side wires to the alternators output PLUS feeds hot battery voltage to the lights n ignition (via their switches BAT input terminals) NOTE 2: If its a coil ignition and you change to Negative Ground, the coil should wire + from the ignition switch and - to the distributor. NOTE 3: If it had a 6 volt coil you can EITHER add a series external voltage dropping (12 to 6) Ballast Resistor in the line from the ignition switch to the coil ORRRRRRRRR use a full true 12 volt rated coil and no ballast is required. Of course, change any lights to 12 volts
If I missed anything I hope the other gents will add to this, let me know if you have any questions: John T
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