What would I need?

[SentraGuy 0]

My current car is running off the stock 80 amp alternator. I am planning on soon putting 1200 watts RMS through the system. How will I know if I need an extra battery, or new alternator, or what?

Thanks.

[bigmikekc 2]

haven't you already posted something about what alt you need?

[KU40 173]

Hook it all up and see if the voltage drops to 12 or below. If it does, you need more electricity.

[Spencerk 4]

Hook it all up and see if the voltage drops to 12 or below. If it does, you need more electricity.

X2........ Only way to really know is to try it, but to get you close here is the break down. 1200 watts will need about 110 to 130 amps depending on how eff. the amp is, and the car will generally need 75% of its alternator capacity. So its a safe bet that your going to be short on the current flowageaitation (flow-age-a-ma-ta-tion)

[SentraGuy 0]

haven't you already posted something about what alt you need?

Yes BUT I would want that to be a last resort deal. Since that would be the most expensive option.

Just trying all my options first, ya know?

[bigmikekc 2]

haven't you already posted something about what alt you need?

Yes BUT I would want that to be a last resort deal. Since that would be the most expensive option.

Just trying all my options first, ya know?

yeah i know