Originally Posted by Ben (Post 492492)

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.

Originally Posted by JasonC SBB (Post 492531)

rafa what is your idle RPM?
Alternators will need >1000 rpm to generate full otuput.