Alternater size for new system?

Question

I am wanting to buy a new alternator for my car as i think i may have passed my current ones capacity. This is my system:

2 x mono-bloc amplifier 1000wrms each @ 1ohm - both will be driven at 1ohm. Both require an external 100A fuse.

2 x 4ch amplifier 100wrms per channel @ 4ohm Both require two 25A fuses each.

I have already upgraded my "Big 3" and a Optima Yellow Top is also on the cards in the near future. Currently i have a stock alternator pushing 60Ah so I'm having to limit my systems potential until I get this new alternator, and we can't have that!

So if anyone knows  what size alternator I need give me a holla.

Oh and if you could tell me how you came to your conclusion could you let me know that as well. I would like to know for next time.

Cheers

Ben

Anonymous · Accepted Answer

I made a handy guide just for that purpose that will calculate what size alternator and power wires you need as well how to set the gain http://www.datafilehost.com/download.php?file=6d26c621

You'll need Microsft Excel to use it. If you don't have Excel, Email me sparky3498@yahoo.com

Anonymous · Answer

First off let me say I do this kind of work all the time and you need to keep your factory alternator and a regular battery . Plus , put in a 240 amp high current alternator with a high current dry-cell or deep cell battery like Kinetik or Stinger only on but I would recommend a 2600 amp dry cell battery and a stinger alternator if you have more questions on this kind of work email me at : LittleDevil16388@aol.com

richard b · Answer

depending on how far you plan to go with your system, a 130-150amp alternator from powermaster should do fine. that said, if you are building a competition system, then upgrade to a 200amp powermaster alternator, and dont forget the capacitors.

Alternater size for new system?

3 Answers