All racers please read this reminder!

[HR9121]

Originally Posted by Bill Harris

Rusty2211 is right. Listen any morning in the pits and it sounds like Jurassic park.
Why is there a need to "test" the throttle stop RPM? Every NHRA accepted delay box is digital and the desired RPM is set to a particular value. Have you ever "tested" it and found it to not be the RPM that you set? It sounds like something that is done habitually and has no real useful purpose, sort of like motorcycle riders who cannot let their bikes simply idle at a stop light and have to continually wing the engine. No purpose, just a habit and an annoyance, but a dangerous one in this case.

Mr Harris, the amount of time a car is on the throttle stop is controlled by a delay box but not the rpms. The rpms while on the stop are controlled by the blades that close, and changing weather conditions can affect what the rpms are.