Hi! I have a 1995 nissan 240sx, i have full aero body kit ready to install and planning to get front splitter and rear lower diffuser, but i want to get rear wing now, and was looking at some of them, planning to get a 2 deck gt style wing, but why the top deck is shorter then the bottom one? How does having 2 deck works better compare to single deck ones, and new gt wings now a days are curved and have a hump upward at the middle (seems less slope, less down force)? Does it really increase more down force with the hump in the middle of the wing and have it being curved compare to traditional straight flat gt wings?

Also about roof spoilers.... Is it pointless to add a roof spoiler after i add a gt wing? Because the spoiler spoil the air movement right at the end of the roof panel, by the time it get to the rear wing the air movement is disturbed or diffusing and the wing will not be able to do any effect? Or should i mount the wing higher?

I know i may not make any scene or sound stupid but i'm just starting to learn how aero work and want to make sure i'm making the right choice, setting it up right so that it function, not just sitting there and look ricey, any input helps! To all members thankyou!!!!!!!

 

here's some reading material for you
http://www.up22.com/Aerodynamics.htm