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Old 05-19-2011, 09:51 PM   #1 (permalink)
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Flat tail spoiler??

I'm not sure what to call this rear panel device - or if it has a name. I saw it on a diesel-powered Metro at the 2011 Green Grand Prix.

Question is, does it help? Sure is easy to put on the car.
What do you guys think??



That's a clear plastic panel, supported by a simple bracket at the center. The car is an X-Prize entry, by BITW Technologies. It scored 106 mpg at the GGP but I have no idea whether the rear plastic panel helped or hurt.

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Last edited by brucepick; 05-19-2011 at 10:30 PM..
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Old 05-20-2011, 10:56 AM   #2 (permalink)
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Brucepick! Thanks for the pic! We have a nice thread going on this topic right now:
http://ecomodder.com/forum/showthrea...ler-14946.html

I'll post a link to this.
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Old 05-20-2011, 04:24 PM   #3 (permalink)
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Do you have any more photos of that car?
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https://ecomodder.com/forum/showthre...tml#post621801


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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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Old 05-23-2011, 10:10 PM   #4 (permalink)
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Do you have any more photos of that car?
See the other thread. I joined that discussion and I figure it's probably best to have it all over there.
http://ecomodder.com/forum/showthrea...ler-14946.html
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Old 05-24-2011, 01:35 PM   #5 (permalink)
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Thanks, Interesting entry. I went to the BITW website but they don't really give much information about the diesel engine swap from what I saw. The mpg figures suggest their aero mods must be helping to get the most out of the diesel.

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60 mpg hwy highest, 50+mpg lifetime
TDi=fast frugal fun
https://ecomodder.com/forum/showthre...tml#post621801


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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