All > Recreation > Sports > NASCAR
- Specifically the air pressure of the tires. Changing the air pressure in the tires is a way to alter the setup and handling of a NASCAR race car. Different tires are set to different air pressures to adjust for the conditions of the track. For example, if the race car is tight coming off a corner, a driver might request an increase in air pressure in the right rear tire to "loosen it up."
Ducksters - Cite This Source - This Definition
- With the advent of radial tires with stiffer sidewalls, changing air pressure in the tires is used as another setup tool that is akin to adjusting spring rates in the vehicle's suspension. An increase in air pressure raises the "spring rate" in the tire itself and changes the vehicle's handling characteristics. If his race vehicle was "tight" coming off a corner, a driver might request a slight air pressure increase in the right rear tire to "loosen it up."
NASCAR - Cite This Source - This Definition
- Force exerted by air within a tire, expressed in pounds per inch (psi).
Sports Illustrated - Cite This Source - This Definition
- Bite, Chassis, Handling, Loading, Round, Setup, shock, spring, spring rubber, Wedge, Wedge, round of, weight, weight jacking