Is My Stock Alternator Good Enough?

[mfmbcpman 10+ year member]

I am planning on putting an Alpine 500.1 and Rockford Fosgate 450.4 amp in my 93 Camry. I called Toyota and they said my alternator is 80 amps. Then, I went to Autozone and the peak amperage was 185. I'm kind of confused by what numbers I'm looking at to see if I need capacitors or a new alternator. Can someone help me or link to some articles?

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[MikeyB 5,000+ posts]

You'll be fine as long as you use proper wire, and probably do the big 3 if necessary.

 

[integra88 10+ year member]

x2..even at 80 amps you should be o.k

 

[jrwalte 10+ year member]

Most autozones can't properly test amperage. That test is including the amperage your battery is also providing due to the load.

With that RMS you'd probably be fine upgrading to an AGM battery if you haven't and with a second AGM battery in the rear.