bass-aholic
10+ year member
CarAudio.com Veteran
Oh boy...here goes.
First off, you should use 4g or 1/0 as your main power wire. Having 8ga wire is not why your getting voltage drops. The 8ga is restricting current flow, upgrading to bigger wire will allow more current to flow thus ******* more current from your electrical system causing more voltage drops. To stop voltage drops get a nice new battery, something big, if that doesn't do it depending on your stock alt size you might want to get a new alt. And on top of that there is no point AT ALL to use 1/0 for your big three on a stock alternator. 1/0 is good for 300 amps and your stock alternator is probably only 80-100 amps depending on your vehicle. The stock wiring is probably fine as is.
First off, you should use 4g or 1/0 as your main power wire. Having 8ga wire is not why your getting voltage drops. The 8ga is restricting current flow, upgrading to bigger wire will allow more current to flow thus ******* more current from your electrical system causing more voltage drops. To stop voltage drops get a nice new battery, something big, if that doesn't do it depending on your stock alt size you might want to get a new alt. And on top of that there is no point AT ALL to use 1/0 for your big three on a stock alternator. 1/0 is good for 300 amps and your stock alternator is probably only 80-100 amps depending on your vehicle. The stock wiring is probably fine as is.
