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Old 08-15-2019, 07:41 PM   #146 (permalink)
Cyborg ECU
California98Civic's Avatar
Join Date: Mar 2011
Location: Coastal Southern California
Posts: 5,755

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: 2,143
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Well, I jist bought fuel and came in less than half an MPG off the 70mpg goal. Spoiker warps more in the heat, then flexes back to a more flat shape during the night. Fail! But more importantly I have had to run the alt all the time. My deep cycle battery from Odyssey (Enersys) has prematurely died 1.5 to 3.5 years ahead of description. $230.00 for the battery, my second of this type, third overall, and they are not even answering emails. Voltage drops to 10.xx volts ridiculously quickly, forcing the alternator to run hard all the time. So, of course I have purchased a new battery from another supplier (NorthStar) with the same technology--in fact NorthStar supplies Enersys. I also got 50% more power storage for 15% more cost.

When the new battery comes and I install it in a relocated spot in the trunk, I will make another run at a 70 mpg tank.

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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