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Old 08-02-2015, 09:23 PM   #2 (permalink)
Cyborg ECU
California98Civic's Avatar
Join Date: Mar 2011
Location: Coastal Southern California
Posts: 6,297

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
Thanked 2,169 Times in 1,467 Posts
Yes. You can do something like this with either "EOC" (engine off coasting) or "DFCO" (deceleration fuel cut off). I have done both quite a lot, but I am much more comfortable with the latter. My alt is wired through an on/off switch. When I am in a long braking situation of some sort, I turn on the alt and engine break in gear. My volt meter usually shows 13.xx or even 14.xx. I can do the same thing during EOC and even extend the coast by fully opening the throttle, but it does not feel worth it for all the added hassle and the feeling of pushing the engine into weird territory. Haha!
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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