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KMT
09-13-2008, 09:06 PM
I searched and found some estimates/guesses.... but...

Does anyone know the expected spec. (or range) for how many amps are output by the SC (1990) stock alternator @ idle?

No lights on, no accessories on, etc. Battery fully charged.

Thanks.

jimmy303
09-13-2008, 09:17 PM
The amperage the alternator delivers at idle will vary, depending on the load presented to it. If you have your lights and A/C on, with a discharged battery, your alternator will definitely deliver a heavier charge than if all is off and charged. Your output voltage, however, should sit between 13.4 and 14.1 volts, for a healthy alternator. Anything over 14.4 volts should raise concern, for funky things may start happening above that.:eek:

dwayne
09-13-2008, 09:54 PM
agreed with above.

KMT
09-13-2008, 10:44 PM
So, what is reasonable amps at idle?

10?
20?
40?
60?
80?
100....?

KMT
09-13-2008, 11:39 PM
Thanks for the replies.

Finally found this data @ 'PA Performance (http://www.paperformance.com/scripts/openExtra.asp?extra=11)', for anyone else searching later, etc.

jimmy303
09-14-2008, 04:10 AM
If everything is perfect, you should have a rather low draw on your alternator (5-10 amps, maybe) at idle. But, like I said before, monitor your voltage...