Re: BlueScooby's 06 STI - Underbody Panels Phase 4 (rear diffuser)
Yeah everything in there is subject to a lot of variables, but the principles in design are valid anyway. I just won't see like 1000lbs of downforce like you might with a really low sealed floor flat bottom car... There is a lot of interesting data on how various factors impacted downforce in a CFD model and in a wind tunnel, and some of it is actually tested on road cars and very applicable to my car (even though my suspension isn't "race" stiff). Even down to the number of strakes on the rear diffuser! Its a good read either way though :tup:^FYI, most of the stuff in that book isn't going to be as applicable on a street car due to the constantly changing gap between car bottom and the road. Unless you have a super stiff suspension setup.
Edit: mainly the underbody is what I'm meaning. Your route should be helpful though, get as flat as possible