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toolboxchev · 09-18-2021, 05:08 PM

Be careful with upgrading wires, automotive wire is different from household wire, is different from marine grade wire.

Bigger is not better, if you up size a wire you can feed a circuit too many amps causing things to fry and cook. Especially the heater circuit. Fans will continue to take more amps if fed more juice. This is in the dash circuit and feeds through the ignition switch which in turn will cook more components.

GM did some pretty trick stuff to regulate power and conserve the use of copper in the electrical wiring so you have to take that into consideration. Look up some threads in the electrical forums, you will see folks have had some interesting experiences trying to do upgrades, myself included.

09-18-2021, 05:08 PM	#3
toolboxchev Registered User Join Date: Jul 2015 Location: 2nd left past the stump on a dirt road. Posts: 2,629	Re: Multiple charging wires from alternator Be careful with upgrading wires, automotive wire is different from household wire, is different from marine grade wire. Bigger is not better, if you up size a wire you can feed a circuit too many amps causing things to fry and cook. Especially the heater circuit. Fans will continue to take more amps if fed more juice. This is in the dash circuit and feeds through the ignition switch which in turn will cook more components. GM did some pretty trick stuff to regulate power and conserve the use of copper in the electrical wiring so you have to take that into consideration. Look up some threads in the electrical forums, you will see folks have had some interesting experiences trying to do upgrades, myself included.