If I was spinning up a car alternator with a small engine, say 5HP, what size alternator (amps) should I expect to be able to run?
- posted
19 years ago
Auto alternators and small engines.
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- posted
19 years ago
It depends from the alternator specification. An alternator for a small car can deliver 35 A max., while, for a fully equipped SUV, well above 120A.
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- posted
19 years ago
A 5 Hp engine develops about 3700 watts. At 13.8 volts this would come out to 270 amps. Neither number takes into account any inefficiency.
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- posted
19 years ago
So you think 100a would work OK?
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- posted
19 years ago
You shouldn't have to worry about the engine stalling with 100 watts.
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- posted
19 years ago
more like 1400w