[DML] Re: Car's use of electricty / alternator & battery question
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[DML] Re: Car's use of electricty / alternator & battery question



The Ducey alternators seemed to be a lot more sensitive to high temps
than the others. I can't offer a better place to put the alternator
but if high temps are that big a deal someone could put an air duct in
to direct more, cooler air over the alternator. The whole engine area
is a "dead air" zone. To properly rate an alternator at max output you
have to figure the temperature it will operate at. It is not playing
fair to bench an alternator at 70 degrees to it's full output for 5
minutes. The way I would expect it to be done is to rate it at the
ambient temperature it is expected to operate at for at least 1 hour.
You can't use the manufacturer's rating because in the Delorean the
alternator will run hotter so it's output MUST be derated. I don't
know how you rate your alternators and I don't know your failure rate.
Of course your failure rate has to take into account problems in cars
that people put your alternators into where the alternator is not the
problem anyway! Or where  they may install it improperly. Many times
the problem is NOT the alterantor but bad connections, bad battery,
shorts, etc.
David Teitelbaum
vin 10757 


--- In dmcnews@xxxxxxxxxxxxxxx, "John Hervey" <john@...> wrote:
>
> David, 
> Where would you mount the alternator it wasn't where it is now. If
you look
> at all the cars that my builder looks at he say's we really have the
best
> place because the wind going down the street can help cool the alt.


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