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Old 07-08-2016, 01:37 PM   #3 (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 ChazInMT View Post
I don't see how you are going to gain a measurable improvement by slightly tweaking the roof line there. I can see where if you put something on there that extended the roof back to the rear edge of the trunk lid that you'd get some gains, but without extending the template, I can't imagine anything other than a tiny improvement.
Yeah, that has got to be correct. One of the best things I learned here at EM was about optimization. How would you optimize the shape? You could spend a lot of time and money on a piece that would change nothing. I don't want to discourage, but it would likely prove really disappointing. I have had experience with disappointing experiemnts. You have much better chances extending the template, as ChazInMT notes. Why not do that? With a hinged tail about the trunk you could retain trunk access.
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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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