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Old 07-13-2011, 05:59 PM   #25 (permalink)
California98Civic
Cyborg ECU
 
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Join Date: Mar 2011
Location: Coastal Southern California
Posts: 6,299

Black and Green - '98 Honda Civic DX Coupe
Team Honda
90 day: 66.42 mpg (US)

Black and Red - '00 Nashbar Custom built eBike
90 day: 3671.43 mpg (US)
Thanks: 2,373
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Quote:
Originally Posted by brianjone5 View Post
My idea for an alternator modification is to replace the shaft pulley with an Air Con-type clutch/pulley. With a circuit sensing batter voltage, while the voltage is adequate, the clutch would allow the pulley on the alternator to spin freely. When the voltage reaches a pre-determined low, the clutch would kick in, turn the alternator and recharge the battery. You'd only spin the alternator when you needed to on long trips, and could top the battery at home via a trickle charger between trips.
My sense of this alternator mod is that it might not add much because an alternator that is not "on" spins fairly freely anyway, no?
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See my car's mod & maintenance thread and my electric bicycle's thread for ongoing projects. I will rebuild Black and Green over decades as parts die, until it becomes a different car of roughly the same shape and color. My minimum fuel economy goal is 55 mpg while averaging posted speed limits. I generally top 60 mpg. See also my Honda manual transmission specs thread.



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