Thread: Alternator Mods
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Old 06-17-2008, 05:43 PM   #9 (permalink)
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Location: Charlotte, NC
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HF - '85 Honda CRX HF
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The "friction" in the alternator actually charging is the magnetic resistance the active circuit is supplying. The resistance is the current voltage the battery sitting at in the circuit. Generators (like your alternator) and electric motors are the same thing, the difference is the polarity of the circuit. If you hook up your alternator straight to your battery it will run; The engine has to overcome this force in order for the alternator to charge the battery, because it actually has to spin the alternator the OTHER way, in order put the battery in a charging state. I think the only way you could get less resistance from the alternator running would be to go with a low amperage unit. Adding a larger output alternator would be the exact same as installing a larger electric motor for your engine to fight. If you did your wiring right and went minimalist on your electrical goodies, you could easily get away doing this. Take a good look at anything that uses electricity in your car, and remember that every single milliwatt you is energy derived from your gasoline. Use less power, use less gasoline.
The Fleet
FOR SALE: 1985 Civic DX Hatch - Fresh paint, rebuilt trans, Weber 32/36 carb
"The HF" :1985 CRX HF - 102K miles! Runs super strong, modifications will be entirely mileage oriented
"The DX" :1987 CRX DX - Devacced, excellent interior, runs perfect, the fun car
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