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Old 07-20-2011, 07:12 PM   #87 (permalink)
California98Civic
Cyborg ECU
 
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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 wyatt View Post
I have also seen a double spoiler used to increase downforce, with no real regard to Cd. Hucho shows an example of a car with no spoiler, a car with a low spoiler, and a car with a low and really high spoiler. The low spoiler (like one on a Gen1 Prius) lowers the Cd, but with the really high one, it increases the Cd and downforce considerably. I like the looks of the spoiler on the car, but knowing that it actually helps the Cd is what puts a smile on my face!
Hello. I have pretty much abandoned the "raised trunklid" project that I created this thread for. I might return to it at some point. The fabrication was just too far above my skills. The Merkur spoiler came up in a previous thread playing with "bonneville" type spoiler ideas... I am reading Hucho, and it seems reasonable to attach a small spoiler to the tail of the trunk, like the Prius and a many cars available right now, regardless of whether we have the testing precision to show the benefits empirically.

EDIT: I just found a Merkur-like spoiler design on the Ford Probe III, from a 1981 auto show in Germany. That design seems to have had the lowest Cd (0.22) at the show (Hucho, 229).
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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.




Last edited by California98Civic; 07-20-2011 at 11:23 PM..
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