View Single Post
Old 10-28-2014, 11:02 AM   #12 (permalink)
serialk11r
Master EcoModder
 
Join Date: Jan 2012
Location: United States
Posts: 1,756

spyder2 - '00 Toyota MR2 Spyder
Thanks: 104
Thanked 407 Times in 312 Posts
Quote:
Originally Posted by freebeard View Post
It wasn't documented, but as basjoos says, it probably about doubled my mileage. But I picked up a lot of rock chips in the paint and I was a nervous wreck, so I don't do it anymore.

Instead of rear wheel spats, maybe something like this:



Instead of a tab running across the tread, divergent fences that force the wheelwell turbulence outward where it can be sheared off by the ambient flow, instead of under the car. Adjusted for adequate departure angle of course.
Yea those rock chips...I try to draft vans and smaller trucks instead for this reason.

+1 to the wheel air fences, but you have to make them pretty low and may get ground clearance issues. In some racing magazine they wind tunnel tested a Lotus Exige, and the drag reduction from making fences that go nearly all the way down to the ground was enormous, even though that car has a short tail.

It's way cheaper than lowering the car though, so it's probably worth a shot. I noticed Tesla Model S have these too but they are small and stubby.
  Reply With Quote