[DeTomaso] Re Re: ZF on eBay ??

Dave Londry davel at trguys.com
Thu Mar 22 14:24:32 EDT 2018


I remain troubled by the friction and windage losses of an alternator 
turning 10,000 rpm, when it could be turning 2500 rpm. Red-line 
operation is not good operation..

If you needed (for instance) a 25A average output to keep the battery 
from cashing out before the end of the race,
then the most efficient way to provide that should be to run the 
alternator at the minimum required rpm
to produce 25A and at as near constant speed as possible.
It would not be to run it under the most variable conditions and having 
already given up the parasitic drive losses.

If you wanted to be most effective, do all that plus suspend charging 
when the pedal is down (play hybrid).
Dave


On 22/03/2018 6:10 AM, Tomas Gunnarsson wrote:
> Actually, the alternator is typically geared to turn at up to around 
> 10 000 rpm at engine redline.
>
> Tomas 



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