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Old 06-02-2011, 10:54 PM   #127 (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 aerohead View Post
If the original foil had been horizontal you would have been very close,if not on the 'line.' I did this on my CRX,but also extended the hatch buttresses along the 'Template' line out to the foil and went ahead and enclosed the foil to create a short boat tail.It added only a foot to the car but got the Cd to 0.235,added 8 mph to the top speed and pushed me immediately to over 60 mpg at the old double nickel speed limit.
This is exceedingly cool and tantalizing, but I have the reality of the Cali Highway Patrol, which pulled me over re: my driver side mirror delete today. I got off with a warning. That's actually my second warning. If I had a foot long projection I think I'd catch more trouble. I already run tint where I am not supposed to. I need a strictly legal solution here.

Quote:
Originally Posted by aerohead View Post
On current production cars you'll notice that the trunklids are a lot higher .The air likes this. You could construct a 'hollow' projection which runs above the trunklid,from the backlight,out to as far as the bumper,which has sides which wrap down to meet the sides of the car.It would be like the 1982 Pontiac Trans Am Firebird,only full-length. You'd be able to look right through it.The air would re-attach onto the back of it,capturing a vortex above
I have noticed this about the trunk lids. I like this idea a lot. I recently took apart the rear deck inside the car and I could attempt this, lifting the third backlight a little higher easily. In fact my first effort at a "spoiler" was maybe not altogether off from this idea... see old attached photo. It was just a 2'x4' sheet of 4mm thick coroplast taped down. I could elevate it a little and shape it in the spirit of the 82 TransAm. I could mount it to the lower window and cut it to curve around the the side, yes? Any further thoughts before I act on this idea?
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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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