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Old 10-30-2011, 02:30 PM   #5
Purdy Swoft
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Join Date: May 2010
Location: Alabama
Posts: 8,099
Default Re: 6 Volts versus 12

Changing over to 12 volts is pretty simple. install a 12 volt battery in place of the six volt battery, replace the coil with a 3.0 ohm coil or add a ballast resister to the six volt coil, replace the bulbs and its done. If the horn is original it will need a voltage reducer or it may lose its smoke. If you want negative ground, reverse the battery cables, the wires behind the ammeter and the wires on the coil. If you are running the original generator it will take a couple of seconds to repolarize or you could install a higher output alternator if you plan on running accessories or the brighter quartz halogen bulbs. I like the positive ground 12 volt conversion that I use on my roadster with no added electrical accessories except for a right tail lamp.
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