On Fri, 26 Jun 2009 01:46:44 GMT, "Lew Hodgett"
wrote:

Did they include an output curve?

High output at low RPM isn't Low cost.

Neither is a "hot" rating.

They do OK on both counts based on my observations. They're mounted
on DD6-71 diesels with about a 3 to 1 sheave diameter ratio. They
start producing full output at around 1200 engine RPMs which would be
3600 alternator RPM. I have not run any long term stress tests at
high temps but have measured them with an IR gun at about 170F while
producing 200 amps. I've only got about 50 hours on them at this
point so long term durability is still a question mark. At $450 I
can afford to carry around a spare however. They are also relatively
cheap/easy to rebuild.