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Larry Larry is offline
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First recorded activity by BoatBanter: Jul 2006
Posts: 5,275
Default Can an alternator be to big?

chuck wrote in news:1152835959_12681
@sp6iad.superfeed.net:

And belts and slippage
may also limit charging current.



May?
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WILL!

325A x 14V = 4550 watts divided by 746W/hp = 6.1 HP plus the conversion
losses, probably over 10HP.

How big was that Yanmar 2GM in that boat??....(c;

How many HP is a V-belt capable of delivering at 2000 RPM, anyways?

How many pulley Vs does the alternator's pulley have, if it has pulleys at
all?

Two fan belts are NOT going to pull a 200 or 325A alternator for long.....
It's hard enough to keep a 120A fan belt from squealing....