alternator size?

by tangofox
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my 78 ford with a 460 engine has a 63 amp alternator. I have a 1000 watt RMS running two 10" subs and a smaller 600 watt Peak running 2 5x7's this is draining my battery even while driving. what size alternator should i go up to?


Replies (3)
trunkisloud on 07/22/2007 22:37:23
need more info on the equipment...model #'s on the amp

tangofox on 07/23/2007 13:35:08
memphis audio 16-prd1000.1 and the other is rockford fosgate 201s


swez on 07/23/2007 15:11:53
Thought we covered this in detail before Tango.

You'll need a stronger ALT for this package. These amps are not real heavy power monsters until you crank up the bass. Something on the order of ~150A's would be sufficient here. (That should not be too hard to find if you know the engine specs)

A 63A ALT is fine for running the basics in your ride, but not enough to thump & bump that sub amp hard for long. (Discharging the battery right?)

Also, when you do find a stronger ALT, look at the power line from the ALT to BAT and BAT to ground. If these are less than #4 gage wires, they need to be upgraded too.

Swez





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