:slap:

Back tires need love too. Unless you're a drag strip hoe. :squint: :snoopy:



Lift indirectly reduces traction, so decreasing your car's lift with some aero bits will increase cornering ability at speed, along with some (probably unnoticable under 100 mph) straight line stability.

The key is to select a wing that gives you a good compromise between drag and downforce. Most stock rear spoilers do not create much (if any) noticable drag. However, they are designed to move turbulence away from the rear of the car unlike those enormous aluminum wings on say, BTCC cars. Picture a turbulent area of air behind the "cockpit" area... low pressure forms along the trunkline in the wake of the car. Which produces all sorts of swirling & whatnot. Low pressure above the car + high pressure below the car = lift.

As you move from a stock deck spoiler (Ferio) to more of a wing design (R), the speed at which it is effective is changing. The faster you are going, the less time the passing air has to "settle" behind the cockpit area and, therefore, the taller the wing has to be to catch that high pressure front.

Rake is a different matter, but I'm sure most of you realize that as the angle of the wing increases, you get both more drag and more downforce, until you pass 45 degrees at which point people start wondering what the heck you are thinking.

Using the above as a guide, you can see that for the average person or someone on a regional AutoX course, a stock spoiler is probably the best idea. Anything taller will just make your car less aerodynamic, not more. For those on a nationals AutoX course or a road course/circle track, you might think about a Type R wing or something by a big name JDM racing team (Jun, Mugen, Spoon, Toda, etc.). They're the only companies I'd rely on for aerodynamic products that are actually aerodynamic. Even the big name JDM body kit producers are a little questionable (Cwest, etc.).



Hope that helps.