An important factor when adding a wing to your car is placement and wing angle.
As can be seen on the simulation below, wings are extremely sensitive to placement. A few degrees to much angle causes the wing to stall. This reduces the wings downforce and increase drag.
Simulations are made on the wing used on the Its Fun 3 Porsche. Values can be found in table below:
Speed Angle Downforce Drag
150 km/h Optimum 63 kg 0,7 kg
150 km/h Opt + 6 deg 50 kg 5,6 kg
For consultation of how to improve your wing performance, please contact me for prices.