Thread: Test: Alternator vs. no alternator = 10% MPG gain @ 70 km/h
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Old 09-11-2013, 03:17 PM   #284 (permalink)
California98Civic
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Join Date: Mar 2011
Location: Coastal Southern California
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Black and Green - '98 Honda Civic DX Coupe
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Quote:
Originally Posted by HypermilerAX View Post
At how much would you estimate the gain with the belt on but the electrical load at zero ? 8 or 9% ?
Depends on the car, but most of the drag on the engine definitely comes from electrical load, not the free wheeling pulley and belt.
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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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