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Old 06-02-2008, 03:40 PM   #50 (permalink)
i_am_socket
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Location: Jersey
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Skeeter - '05 Toyota Corolla LE
90 day: 35.55 mpg (US)
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Or far more simply: just have a chase car and an empty road, its cheaper and easier

I did a few searches trying to find everything I could to get more data, but one interesting piece I found had to do with wheel skirts. From Gassavers - basically it seems the pumping of air from the wheels combined with a wheel skirt created pressure that messed up the airflow and reduced MPGs. Without the spokes pumping pressure in there the situation might have been reversed. Perhaps step 1 is disc and step 2 is skirt?
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