corvairs at pacifier.com corvairs at pacifier.com
Thu Jul 29 13:54:37 EDT 2010

Tim - My youngest brother was a commercial custom electrical component
rebuilder for nearly 20 years and he said that anything over 75 amps in a
Corvair alternator was a shaky proposition.

The reason is the small contact area on the pulley made by the Corvair fan
belt. You get much above 75 amps and start getting slippage and other

As usual, his standards were based on a safe margin, and like many things,
your experiences may vary.

Only 2 days left on our motor mount sale!

> i am running 100 amp  "3 wire?" or more alternators on my rampy and 64
> A/C
> coupe with no issues. the rampy has aircraft landing high beams , 100 watt
> ham radio , gas heater , and heated seats. yes i upgraded a few other
> things  along the way to cope with increased loads .
> i had 2 140 amp  (real one wire units with the little module plugged  in )
> units made at the local auto electrical shop that were the same housings
> for my boat. they also worked well , but we had to go to double pulley/
> belts
> on  those.
> i bet the rampy draw gets right up there at times , but so far it works
> fine. dimmer switch was my first failure , so added a relay. that was
> after
> running a new larger wire for battery feed up front , isolator for extra
> battery  to run a marine refrigerator freezer on trips .
> i think there were photos posted on the old website
> _http://www.corvair.de/corvair_ham/corvair_ham.html_
> (http://www.corvair.de/corvair_ham/corvair_ham.html) .
> i run a voltmeter in my spyder dashes to monitor .
> so far , i am very glad i did this upgrade.
> got the old 70's 80's gm alternators for $5 each cores at the junkyard ,
> then put new parts and corvair front and fan on them. i think they ended
> up
> costing @$50 each by the time i was done. that was new aftermarket rotor ,
> field  , regulator , and brushes .
> regards, tim colson
>  _______________________________________________
> This message was sent by the VirtualVairs mailing list, all copyrights are
> the property
> of the writer, please attribute properly. For help,
> mailto:vv-help at corvair.org
> This list sponsored by the Corvair Society of America,
> http://www.corvair.org/
> Post messages to: VirtualVairs at corvair.org
> Change your options:
> http://www.vv.corvair.org/mailman/options/virtualvairs
>  _______________________________________________

More information about the VirtualVairs mailing list