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Old 02-12-2008, 12:35 PM   #10 (permalink)
Lazarus
ECO-Evolution
 
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Join Date: Nov 2007
Location: Central Texas
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Iron Horse (retired) - '97 Iron horse Intrepid

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I think the magic number is 11 degrees. There is to much slope from the roof line. There would be early seperation of airflow off the roof. I thing Carlos has the ridght idea with sloping the roof line in a gradual decreasing angle until you hook it up with the boat-tail at the rear of the car. Same hold true for the under belly when bringing it up past the bumper.
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