Supra Alternator amp

[finman]

Does anyone know what the amp output of the alternator is on a 2002 indmar?
I am wanting to install a 2nd battery and battery isolator.

Thanks,

Finman

[jdaugherty5]

As I recall on the my 2003 SSV the alternator is 70 Amp total, 25Amps at idle and 70Amps at top end. I looked at indmar's website and that is the current specs on their 5.7L vortec engines as well.

Link to Indamr and supra engines:
http://www.indmar.com/engines/engine_detail.cfm?name=ind_57_mpfi

Look under tech bits for the Alternator rating. It does not look like they have changed the ratings since 03, so your 02 boat is probalby at least a 70Amp alternator.