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I got my high output alternator from MechMan
320 amp alternator for 499 plus like 15 shipped
They are out of Knoxville TN (865-522-6166)
I run it on my supercharged gs4
I submitted an inquiry to mechman about my GS400 a couple of weeks ago this is their response:
"Those vehicles have a pretty low idle speed, and a relatively small crank pulley, so I generally recommend either the 170 amp or the 240 amp S series unit if you want really good output below 800 engine RPM. Both units are pretty much indestructible, even in hot climates. All the S series units feature our twin heavy duty internal rectifiers, oversize charge post, billet aluminum overdrive pulley, hairpin stator, and 12 massive diodes. We include a 2 year warranty, and a 1/0 gauge cable connection with every unit. The price also includes the necessary vehicle specific adapter bracket and plug-n-play wiring harness. Because the drive belt on those cars is so narrow, you may experience some belt slip with the 240 amp unit when it is under a heavy load. We offer a 320 amp unit, but it will pretty much slip the belt all the time.
170 amp
300 rpm turn on
500 rpm - 120 amps
800 rpm - 150 amp
1200 rpm – 170 amps
$449
240 amp
500 rpm turn on
650 rpm - 100 amps
800 rpm - 140 amps
1500 rpm - 240 amps
$549
I just ordered a DC Power 270 Amp alternator, my friend Bigty has used it for over a year with no problems.
sorry whoever sent you that? but mine works and i got the receipt right here.... best of luck to you
Mechman sent me that information. Here is a screenshot of the email. I'm not planning to spend over $500 for something that the manufacturer says does not work. Sorry to the OP for the hijack.