IML: horsepower to drive an alternator
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IML: horsepower to drive an alternator



There is no way that an alternator is going to require 10, let alone 40 hp, to operate. One of the ways Horsepower is measured in Watts, where 750 watts equal 1 hp. Watts are also expressed electrically as amps multiplied by volts. Now for some simple math, lets presume a 100 Amp alternator at max output, and a 14.5 volt charging voltage. 100 amps multiplied by 14.5 volts should equal 1450 , and 1450 watts is almost 1500, and 1500 is 2 horsepower. So from that example it can be seen that a lower amperage output alternator is going to have a correspondingly lower total wattage output and if thats the case, a lower power requirement to drive the unit.

Not to flame anyone here or cause a big commotion, but many people on the IML take the various facts, figures and technical subjects as completely authoritative and thats not always the case.

Mikey
62 Crown Coupe





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