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more thoughts...
Spotter, Thank you for posting your careful test data. I hope you do not find a 1% mpg increase discouraging. It is a step in the right direction. Darin (MetroMpg) has said there is no magic bullet; it's more of a magic buckshot approach, a percent or two here and a percent or two there and it all adds up.
I envy your simple and reversible construction method. I made a similar one of coroplast for testing but I don't have easy attachment holes. Do you have scraps left to make flat coroplast wheel covers? Perhaps in the future you can extend your Kammback for a longer, removable tail. I have welded up a bracket that fits in my receiver hitch for this purpose but that is as far as I have gotten so far.
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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
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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