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Old 11-03-2013, 06:20 PM   #3 (permalink)
2000mc
herp derp Apprentice
 
Join Date: Oct 2008
Location: Lawrence, KS
Posts: 1,049

Saturn-sold - '99 saturn sc1
Team Saturn
90 day: 28.28 mpg (US)

Yukon - '03 GMC Yukon Denali
90 day: 13.74 mpg (US)
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hi hliew88, impressive mods for a new member

Quote:
Originally Posted by hliew88 View Post
Front air dam made by curving 2 strips of some patio siding. Held on by zipties only, extends down to lowest point on car, around the front wheels. Better than lawn edging IMO. It doesn't seem to be helping my mpg though... explanations?
it looks extended out to the sides a little too much to me. if possible bend the ends back some to follow the curve of the bumper, if that cant be done trim a little off. i'm thinking the air is getting pushed out to the sides by the airdam, beyond the width of the tires.
also, if you added the panels under the body before you added the air dam, then youre going to see a smaller improvement than the same air dam on an unmodified vehicle
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