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Old 06-17-2020, 12:28 PM   #33 (permalink)
California98Civic
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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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Quote:
Originally Posted by serialk11r View Post
... but it's probably not worth the added complexity.
There is a point of diminishing returns for sure, where multiple changes add complexity and reduce reliability and ease of maintenance. I could have gone with some racing pulleys that are even lighter. There used to be a 1.5 lbs crank pulley (~3 lbs lighter). And there are underdrive pulleys that weigh less than 0.5 lb that would give even greater effect because the little weight they have is also closer to the pivot point, but I would lose my alternator belt and would be pushing the tolerances of my engine. I have a DD, not a race car (lol).

Definitely going to start looking for a lightweight flywheel, though.
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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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