Areodynamic Reading Material

[mmdb]

Link below is a pretty good summary of aero effects on a car and components used to create downforce.

http://www.superhachi.com/theory/downforce/

[a_ahmed]

Those drawings and explanations are kick ass lol

[RBbugBITme]

I see an error! The low front air dam doesn't continue on as a flat plate. The air is shown expanding in front of the front wheels and the expansion would slow air down and create higher pressure. Just nit picking cause I'm bored...

[Def]

I see an error! The low front air dam doesn't continue on as a flat plate. The air is shown expanding in front of the front wheels and the expansion would slow air down and create higher pressure. Just nit picking cause I'm bored...

Yea, but there would be a pretty pronounced low pressure area right behind it due to the flow separation. It might make about the same(or maybe slightly more/less) downforce than a proper airdam with a smooth lower profile, but that will be at the expense of much more drag. So I agree it's definitely not the best design.

Seen it on quite a few cars though(BMWs in particular that want to keep the stock engine cover height and lower an airdam/splitter down).