Alternator power?

[chickenhunter 10+ year member]

im dropping in a decent sound system in my old 1968 plymouth fury but to power it all i figured i needed about a 90 amp alternator (i think it has about 30 amps now). so i went down to the local auto parts place and asked for one and they said the highest i could get for my engine (straight 6) was 60 amps. anyone know if this is true? if so will 60 amps be enough? can i keep my old alternator in too and run both? if not, where could i get an alternator good enough?

thanks

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[Billyf17 10+ year member]

The 60 should be fine. If you get a second battery that is. If you wire the amps to your one battery it could drain it and the alt wouldn't charge it.

I think 60 is good for your app, but like I said a second battery wouldn't hurt.

 

[StallionAudio 10+ year member]

I'm not sure, but the guy might be sayin that b/c orig. factory specs call for the bigges alternator being 60 amps. How do ya think guys w/ CRX's (for ex.) hook up high output 200+ amp alternators in them to power their systems. Factory max (again for ex.) prob calls for no bigger than a 90 amp alt., depending on power options. A '68 plymouth wouldn't have high drain options like an A/C or whatever, thus the smaller alt. Possibly it is the size as well, but that is prob unlikely. Those cars are pretty **** big... plenty of room for expansion.

 

[audiolife 5,000+ posts]

ohio generator lol good place to get an alt.....yu can get the 60 rewound to 90 im sure as well