Quote:
Originally Posted by rotorwrench
Where most 6-volt cars will use a 16 AWG wire for a single load circuit, the 12-volt systems only need an 18 AWG wire. You can use 6-volt wiring for 12-volt but you can't use 12-volt wiring for 6-volt. There would be too much resistance for the lower voltage on the smaller gauge wires.
Wiring that caries a higher flow of amperage such as the generator armature wire and the battery buss wire have to be a fair amount larger in wire gauge than just 16 so I would recommend just purchasing a wire harness for the 6-volt systems. If the vehicle is changed currently or at a later date to 12-volt then nothing has to be changed.
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Thanks for your advice and also others with similar sentiments.