Why do sports cars want low weight but high down force? It seems contradictory
In: Engineering
Weight is a measurement of mass. It just happens to be “down” on earth. The mass is a component of momentum which you to be as low as possible to allow for improved acceleration.
The lighter the car, then the more acceleration you get with the same force. Also the easier to slow the car (negative acceleration) which is also important in performance vehicles.
Downforce is required because fast vehicles are made aerodynamic by necessity. Going fast and being aerodynamic are the recipe for a wing. If you get lift from the shape of the car then you’re getting less traction, which means you get less forward force from the energy you’re putting into the tires. It’s also dangerous for turning.
Make sense?
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