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Old 02-09-2016, 12:57 AM   #16 (permalink)
niky
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Quote:
Originally Posted by oldtamiyaphile View Post
At large alternator makes 160A, that's ~2.2hp at full load. Even with all the losses from crank to output, it won't ever take more than 3hp to drive it.

20hp is what it takes to drive a whole small car at freeway speeds.
Memory is hazy. My bad, I believe it's about 20 with everything, including AC.

I recall one dyno we did where turning on all the electricals sapped some 5 horses (on a small car) from the wheels. But that's everything on except AC... which you won't be doing a lot of.

Still... I don't think it's worth it.
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