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AMP level for FD alternator?

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Old 05-06-03, 01:41 PM
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AMP level for FD alternator?
What AMP level should a stock touring alternator put out? I just had mine tested and it's between .9 and 1 (or maybe that was 10 and 9). I'm replacing my Miata battery with an Optima yellow top. I want to make sure my charging system is functioning properly because the miata battery only lasted 6 months.

Thanks guys

Chris C.
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Old 05-06-03, 11:20 PM
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I did another search and someone posted 100 is normal. Can anyone confirm this?
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Old 05-07-03, 03:02 AM
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at 3000rpm, it should be putting out 100 amps. why a miata battery?
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Old 05-07-03, 03:26 PM
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Greddy FMIC. Thanks for the reply
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