ok so I saw speedvision show highlighting a lexus that looked like it had the aerodynamics of a brick and was as big as a house however had an aerodynamic coefficent of .3 which is damn low thats what most sports cars are. They attributed this due to the fact that the bottom of the car was covered with a sheet of plastic (or similar material). Ive seen cars built for top speed and long races with the undercariage having large flat pieces of material for the undercoating of the car but damn I didnt know it helped out that much. Anybody seen one on a honda any web sights? I might try to build a couple pieces for shits and giggles plastic is cheap right? Just dont know what to do about the exhaust. I can see it already my ghetto rigged undercarriage falling off my car at 100mph on the interstate........that wont sound to good. Seriously though if you know of any web sites with more info on undercarriage aerodynamics or even pictures of undercariages its appreciated. Thanks.
Robster

 

i believe camrydan had posted the bottom of a skyline which was of course equipped... look for the can you guess what car this is thread

 

 

The bottom of my car is covered showing only the the resonator catalytic converters muffler and all the exhaust piping. I dont think to get the full effect you can just cover up parts with sheet metal. These guys at Lexus and Mercedes really did their homework as they are engineers I think it would be hard to replicate what they did.

 

mines covered to.....if you do it wrong Id imagine you would end up creating more drag than anything

 

hence why those shrouds on the bottom of your cars under the radiator are so important.. bu tmost people discard them b/c they are a PITA. they can actually cause so much turbulence that they can push air out form BEHIND the radiator slowing down the car and haulting cooling efficiency..

 

PITA??? What is that?

 

Pain In The Ass

 

a lovely warm flatbread