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Old 01-24-2012, 08:06 PM   #5 (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)
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Quote:
Originally Posted by ConnClark View Post
Why not just leave the alternator on for all the runs? Current consumption should be the same if you don't use the radio.
That's a good question, and Carlos/cfg83 has part of my answer. But it's also true that this Civic has the ELD/Alt set up that allows the ECU to modulate the power output of the alternator, and it does not seem to be completely regular under otherwise identical conditions. Maybe with a starting battery it would be, but not with my deep cycle. I watched the alt charge sometimes and not at others. And it was not always putting-out the same amount of power. Isolating the alt seems like my only way to control this factor. I have been looking more at some of the other test on here again too. The tendency is to build the skirts as close to the wheel as possible. I made a mistake leaving room there, I bet.
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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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