How far should I upgrade my electrical?

[Dimwit]

Hey all, I have a 150 amp stock alt with 1 55 ah battery under the hood and 2 135 ah batteries in the rear. If I wanted to support roughly 3.5-4k would an upgrade to a 350 amp alt be enough or would I need batteries too? I already have big 3 and 2 pos runs of 2/0 and 1 neg from the front battery to the rear.

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[oldschoolboomer 10+ year member]

you should be fine with what you have listed there

 

[Dimwit]

Oh cool thanks!

 

[SPL.Pantie.Soak]

From my understanding-- you could run that many watts on there- however you cant play at full tilt all day long while the cars going- you're going to have to turn it down a bit at times when the voltage gets a bit lower to give your over-stressed alternator time to recharge those big ole batteries.