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Old 04-28-2012, 12:09 AM   #2 (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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I can't see the battery being an issue. The alt seems to put significant load on your little engine. With the belt removed the pulley is freewheeling and allowing the engine to rev up. Without the ECU systems most of us are accustomed to, the engine seems to have no way to adjust the idle. That's my guess. Maybe someone with experience with these older engines will have a solution. Good luck.

EDIT: it has to be a fuel thing, right? That's why you see more power in gear too. Your opportunity without the alt belt would be to adjust the fuel flow downward, no? Power-up your battery by plugging in. That would consolidate and expand the FE gain from eliminating the alt. Does that sound plausible?
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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.




Last edited by California98Civic; 04-28-2012 at 12:20 AM..
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