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Old 03-12-2018, 06:58 PM   #11 (permalink)
Cyborg ECU
California98Civic's Avatar
Join Date: Mar 2011
Location: Coastal Southern California
Posts: 5,199

Black and Green - '98 Honda Civic DX Coupe
Team Honda
90 day: 64.33 mpg (US)

Black and Red - '00 Nashbar Custom built eBike
90 day: 3671.43 mpg (US)
Thanks: 1,846
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Originally Posted by sendler View Post
The Mercedes F1 engine runs at 50% thermal efficiency due to the electric turbo harvesting all of the available waste heat and gas velocity in the exhaust.
Thanks for that, sendler. Really interesting.

Here is an overly complex setup that allows a very small engine for greater fuel economy: a small, light-weight car, with an engine that is smaller than 1.0L. It would use a combination of a BAS-type eAssist, an exhaust turbo, and a very small electric supercharger for low end torque in the turbo lag seconds. Set up with the ability to harvest heat and kinetic waste energy in a battery with a grid charging ability too... Seems likely to win a Rube Goldberg design award!


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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