Originally posted by XT500
But isn't that the actual point of the spoiler? So the car has more grip while going around corners, and while accelerating? The spoilers should be optimised to give a lot of downforce at lower speeds (cornering, accelerating), but also to minimise drag at higher speeds.
If you create aerodynamics that give a lot of downforce at low speeds, as speeds increase and more air flows over them, they will produce even more downforce and actually slow the car along the straights, aerodynamics is always a compromise between straightline speed and low speed performance, Obviously you want good grip through corners, but also want high speed stability, a balance between the two must be reached or you risk sacrificing straight line speed for a little more cornering speed, you really can't write either one of them off and sacrifice them for the other. The general idea, is to do as ferrari has done with the F2002, produce a car with slippery aerodynamics with phenomenal mechanical grip from the chassis, and use slippery aerodynamics with low drag to supplement the mechanical grip thereby you need to run less wing in the corners to get a decent amount of grip, which means less drag down the straights where all out speed matters, meaning there is much less compromise between straighty line speed and cornering grip.
One thing to consider about the V8 spoilers is that the holdens have supports about 1/3 of the length in, which minimises flex of the wing, but the ford ones are supported only at each end, so there is more flex in the middle, reducing the effectiveness. The VR/VS commos had the T-wing (lots of flex), but it was ammended for the VT.
I have not heard this before, but will call to an example the now outlawed flexible wings in F1, they were able to be set at a particular angle for low aerodynamic loadings (slow speeds) to produce a lot of downforce, but as aerodynamic loads increaded on them (fast speeds down the straight) they would flex back and reduce drag and the amount of downforce applied to the car so it wouldn't be a compromise in either area, it was outlawed because the wing foild had a habit of braking and causing nasty accidents. Now if Holden wings were doing this they would have been OK in low speed stuff, they would have produced their maximum amount of downforce, they would have flexed at high speeds down straights to reduce drag, and this could be considered a good thing...