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Artist rendering of a NASCAR restrictor plate. A restrictor plate or air restrictor is a device installed at the intake of an engine to limit its power. This kind of system is occasionally used in road vehicles (e.g., motorcycles) for insurance purposes, but mainly in automobile racing, to limit top speed to provide equal level of competition, and to lower costs; insurance purposes have also ...
In sports car racing, balance of performance (BoP) is a regulation and mechanism that maintains parity between competing vehicles by adjusting the limits and parameters of a vehicle such as horsepower, weight, engine management, and aerodynamics to prevent a single manufacturer from becoming dominant in a racing class or series.
There are also aftermarket units where a separate controller is installed using a custom RPM setting. A limiter prevents a vehicle's engine from being pushed beyond the manufacturer's limit, known as the redline (literally the red line marked on the tachometer). At some point beyond the redline, engine damage may occur.
At the high-speed superspeedways, track limits are marked by a double yellow line (white line at Atlanta Motor Speedway starting from 2022) separating the apron from the racing surface. Exceeding track limits to advance one's position is subject to a drive-through penalty, or if the foul occurs on the last lap that car will be relegated to the ...
Drivers race on the apron at Chicagoland Speedway (the area between the white and yellow lines). aero cover See wheel shroud. air jacks Pneumatic cylinders strategically mounted to the frame near the wheels of a racing car, which project downwards to lift the car off the ground during a pit stop to allow for quick tire changes or provide mechanics access to the underside of the car for repairs.
Max Verstappen tells BBC Sport in Las Vegas about the approach that has brought him to the cusp of a fourth world title.
For the 2017 season, the fuel limit per race was increased to 105 kg. [12] For the 2019 season , the limit was again increased to 110 kg. [ 13 ] The power outputs of F1 engines have not been disclosed since the 1990s, however, the consensus is that the 1.6 L turbocharged V-6 engines produce 750 to 850 bhp , depending on trims and mappings.
The High Limit Racing series, currently known as the Kubota High Limit Racing Series for sponsorship reasons, is an American touring sprint car racing series. It was founded in 2022 by five-time World of Outlaws sprint car series champion Brad Sweet and former NASCAR Cup Series champion Kyle Larson .