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Old 10-20-2012, 01:03 PM   #240 (permalink)
COcyclist
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Join Date: Dec 2007
Location: NW Colo
Posts: 738

TDi - '04 VW Golf
TEAM VW AUDI Group
90 day: 52.55 mpg (US)
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Quote:
Originally Posted by Arragonis View Post
Would like to start considering wheel covers soon - suggestions welcome on reversable covers for wheels like these :
I made covers out of coroplast political signs. I used an old yardstick (meter stick) to make a compass with a hole for a bolt at 1" and a hole for a sharpie marker at half the desired diameter +1". I find offset metal snips cut the coroplast nicely. I secured them with plastic wire ties looped around behind the wheel spokes. From the photo it apears that your wheels may not be totally flat? With a little experimentation one could make a larger diameter flat cover and make a pie slice to make it slightly cone shaped. I did use some blue painter's tape on my alloy rims to protect them where the covers may contact them. (I have not scientifically tested them but my tank averages with them on have not been encouraging)
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Quote:
Originally Posted by freebeard View Post
The power needed to push an object through a fluid increases as the cube of the velocity. Mechanical friction increases as the square, so increasing speed requires progressively more power.
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