Can I get a stronger battery? - Page 2 - Miata Turbo Forum - Boost cars, acquire cats.

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Old 12-08-2009, 09:41 PM   #21
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Originally Posted by Ben View Post
Oh, Rafa you have an NA don't you? NA alternators are very low output, though automatics have greater output alts than manuals. The FD RX7 alternator should also bolt up and be an upgrade.

Or do what Joe advises, which is to get the original rebuilt and rewound. There are people who do that; I've had it done on old GM cars multiple times.
Joe's advice is indeed spot on. I know a guy like that. Many around these parts.

Originally Posted by JasonC SBB View Post
rafa what is your idle RPM?
Alternators will need >1000 rpm to generate full otuput.
1100 rpm. I could never get the car to idle properly with the a/c on so I just don't use it.
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