These devices are used primarily at Daytona and Talladega.
Pronunciation:
re strict or plat • (noun)
Examples:
The restrictor plates reduce the horsepower so much during plate races that aerodynamics often decide the winner instead of the engine.
Related Resources:
Great Plate Debate - Pro Great Plate Debate - Con
Definition:
A flat device with holes drilled in it designed to limit the amount of air that enters the engine. This
effectively limits the horsepower of the engine and slows the cars down.
Related Terms
• Plate Racing
• Bump Draft
Plate racing has been controversial since it's debut. Here is the "pro" side.
And here's the other side of the argument.
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Restrictor Plate
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