What gauge wire should be used to run from the alternator to my switch in the rear? I all ready have 1 gauge welding cable for my power from the battery in the back. and used some 1 gauge for the grounds also. just need to figure out how to wire so the alternator will not cause the car to keep running.

 

Does your car have a switch panel? If so, I would run the ignition wire to the switched side of your cutoff switch to kill the car. I might be wrong but I wouldn't think cutting power to the alternator is gonna kill the car like u think

 

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no switch panel but i'm sure i could find the ignition wire and splice into it.

 

I ran 4 gauge for mine and it charges fine. You need to run the alternator charge wire either directly to the battery or to the battery side of the cutoff switch.

 

This is the one I used ...