CGX car nut:

Don’t forget that the static weight distribution for a road car is different from a race car because a race car is much more dependent on aerodynamic forces.   Too much rearward weight distribution with additional downforce leads to greater propensity toward understeer, which scrubs away speed in a corner.   This is undesirable in a race car.

That's why race cars can produce downforce on the front axle as well.  But in general it is best to have more downforce on the rear axle than the front.  This way you can tune the chassis without downforce to be lively and neutral (or even slight oversteer), so that the car rotates and handles well in slow corners.  But at high speeds, you want stability (neutral to slight understeer).  Not fun to be sideways at 200mph, but being able to rotate the car in slow corners can be helpful.

The effect of downforce is proportional to the square of the speed its traveling.  So in a 50mph corner the car only produces 1/16th the downforce as in a 200 mph one.


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18 GT3 Manual, 73 Carrera RS 2.7 Carbon Fiber replica (1,890 lbs), 06 EVO9 with track mods. Former: 16 Cayman GT4, 73 911S, Two 951S's, 996 C2, 993 C2, 98 Ferrari 550, 79 635CSi