JD

[Drop Shock]

On an airplane you might want air to "push up on the bottom" of something, but you never want that on a race car. You want air pushing down on things. Technically the air doesn't do any pushing really. It's all about Newtons 3rd law. Anytime you deflector air, or any mass, in a certain direction there will be an equal and opposite force. Anyway, "letting air out" is correct. Think about it. When the car is yawed at a slip angle in the corners, it's the same reasoning behind having the rear end open. With the right front nose dropped down close to the track and the left rear jacked way up in the air, the air coming over the bpdy and flowing out that left rear wheel well is going to be deflected upward. That's going to create down force on the left rear.

Definitely makes since, I remember Josh Richards running something like this on the Rocket house car about 6-7 years ago. It was a real short quarter panel almost like something you’d see on the right rear at Macon or Belle Claire

[rdcllk]

I remember that short qt panel. Was at Screven that year
Only Josh and Bloomqueist had it that way

[flagone]

Randle Chupp and his WolfPack Team Cars long had shortened left rear fenders. Josh showed up at Screven that year and practiced with the shorty LRQ. And when I got there the next day I went down and told Mark they had to take it off. It was an unsanctioned event.

My guess here though is that JD made them overly large to draw attention to the problem that it has/can or will become.

http://www.dirtondirt.com/story_3929.html

[Kromulous]

Well it’s not working, JD is getting smoked like all the rest of em by Rocketshepp...