Wheel Well Fender Flaps in Front of Rear Tire (04 Civic)

[ChazInMT]

I was inspired by the recent post regarding edges being useful in new aero designs. One of the comments by the GM guy regarded a flap in front of the back tire on the Chevy Traverse. I found a good pic of it here.



and Zoomed in....



This got me to wondering about my 04 Civic back tire...



I was thinking of doing this....



I would just use some vinyl edging or something to extend it out a few inches and drop it down a bit making it the width of the tire and 2 -3 inches lower than the frame rail.

I would use some sorta plastic fasteners to attach it, cause if I use metal screws, and the thing gets torn off somehow, there is about a 110% chance it will end up giving me a flat tire.

Crazy enough to work?

[DonR]

Crazy (read inexpensive) enough to try.

[euromodder]

You'll see these small air deflectors on loads of new cars BTW.
Any air you can deflect away from a tyre is a (minor) gain.

Put them at a slight angle.

[Frank Lee]

Get some cheap mudflaps and stick 'em on the "wrong" side...

funny how we say to take 'em off if they are mounted where they're supposed to be.

[aerohead]

Originally Posted by euromodder

You'll see these small air deflectors on loads of new cars BTW.
Any air you can deflect away from a tyre is a (minor) gain.

Put them at a slight angle.

The flap under yaw conditions has a Cd 1.11

[aerohead]

Just as a comparison,you might want to look at what Fuji did with the '86 Subaru XT.

[Vekke]

Porsche Cayman has also nice curvy flaps before rear tires. This is the best picture I could find, but that "lies" little about the angles used.
Specifications of 2010 Porsche Cayman Base | Review of 2010 Porsche Cayman Base features and pics| 2010 Porsche Cayman Base best price