View Full Version : DIY Rear Wheel Spats

06-10-2014, 05:02 PM
I saw this idea discussed at Ecomodder in regards to fuel savings through aerodynamics. I thought I'd give it a try. I first took a piece of cardstock to make a template.
https://scontent-a-sea.xx.fbcdn.net/hphotos-xfa1/t1.0-9/10411269_10152220876144426_3573112120374624389_n.j pg

Then I used that pattern to cut out a piece from a sheet of 3/16" ABS plastic that I had laying around.
https://fbcdn-sphotos-d-a.akamaihd.net/hphotos-ak-xpa1/t1.0-9/1522147_10152220876329426_6791331051230905198_n.jp g

I used a heat gun to bend the plastic to conform to the shape that I desired.
https://scontent-b-sea.xx.fbcdn.net/hphotos-xpf1/t1.0-9/10449967_10152220876754426_7991595478173594067_n.j pg

I used 1/2" sheet metal screws to secure them in place.
https://scontent-b-sea.xx.fbcdn.net/hphotos-xpf1/t1.0-9/10409039_10152220876954426_8275212450234109651_n.j pg

After using these for close to ~1400 miles, I am seeing a small 0.5 mpg increase. Regardless, that's good for about 6 extra miles per tank!

06-10-2014, 10:46 PM
Looks pretty good and not too hard to do. What are these made to do deflect air away from the tire?

Looks like I could just extend my mystery mod :rolleyes:


And the best part is no more busted knuckles when washing the car. :p