compare and contrast aerodynamic advantages of different wings and designs

[tastyratz]

Ok this thread is for just that, to compare and contrast aerodynamic advantages of different wings and designs.

[rant]
This is for the grown ups to have an intelligent discussion about different wing designs so please refrain from the following:
"if you dont drive about xxxmph I dont see the point"
"wings are for ricers"
"i dont think it looks good"
"wings dont work at all"
wings DO work, A well designed wing will be a trade-off between drag and downforce, I dont really care if you like the way my car looks with a part purchased that has functionality in mind, and yes.... I regularly drive at those speeds... some may call me an asshole. stfu n00b.
[/rant]

So now that's pleasantly said and out of the way early on in the thread lol. What would probabbly be the most efficiently shaped wing for a s13 hatch? I have seen several released and I know theres no true wing specifically designed for optimal downforce or atleast reduction of lift for our car (that makes a big enough difference atleast... not stock)

I would like to install a wing on my car that will provide an optimal amount of downforce while producing minimal drag. I have seen several designs such as a single deck aerofoil without curvature, a dual deck without curvature whether in part or in whole, a newer "3d style shape" such as the do-luck or this d-drug




would that bump in the center actually provide an advantage? what about length of the wing? optimally would it be better to have one that is wider than the car, one that is exactly the same, or one that is slightly smaller? Whatever type I plan on going with I plan on trying to design a shock based system that will provide variable resistance on the wing mechanically forcing it to have a higher rake at lower speeds, and less of a rake at higher speeds for a more consistant downforce without creating way too much drag up top.

intelligent thoughts? comments?