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Old 10-21-2009, 08:22 PM   #14 (permalink)
basslover911
Master EcoModder
 
Join Date: Sep 2008
Location: Fort Worth, Texas
Posts: 356

Silver Turtle - '02 Ford Focus Zx3
90 day: 38.83 mpg (US)
Thanks: 4
Thanked 2 Times in 2 Posts
Well I already have smooth wheel covers anyway. I am thinking venting it behind the tire might be best though.

My reasoning is that throwing it in front of the tire will add more "air" that the wheel (even though it is smooth) has to go through. Also, I am thinking that by adding it in the rear it might also help with the airflow separation that always occurs at the edge of the fender right behind the wheel well in almost every car and make that transition smoother thus eliminating some of that flow separation... ?
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