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Old 05-08-2012, 09:18 AM   #5 (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 Cd View Post
I agree that has to be the Cd of the hatch.
The previous generation ( 92-95 ) actually had a better Cd for the hatch versus coupe ( .31 vs ..32 )
Amazing what a slight change in window angle can do to destroy a cars drag.

After seeing such big improvements from such little changes, it makes me wonder why car manufacturers brag about how many hundreds of hours they spend on a car to get the Cd down two or three counts.
I saw that too, about the 92-95 Civics. The VX only came as a hatch, right? It had a small chin spolier, a backlight spoiler, only one outboard rear view mirror, and what else to achieve this .31 ... because as you say the back end should be worse than the coupe. Partial undertray? It's a curious fact.
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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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