3 ms·
From your first link, they turn at around 3800 RPM, but the race only lasts a few seconds so they only complete a few hundred revolutions: "This calculation as
by hnuser123456 2y ago
From your first link, they turn at around 3800 RPM, but the race only lasts a few seconds so they only complete a few hundred revolutions:
"This calculation assumes an average racing engine speed of roughly 3,800 revolutions per minute over a period of 3.8 seconds."
- magicalhippo 2y agoYeah, obviously they don't use a CVT so the RPMs are anything but the same throughout the race. I don't know the details of Top Fuel and such, but Steve with his SMX[1] wagon[2] keeps his car at 2000 RPM at the lights, so seems reasonable to assume Top Fuel is around there too. On the top end the Top Fuel cars are limited to just over 8000 RPM[3], with the red line at 8500 RPM. So an average of 3800 RPM seems reasonable. As a cross check, given that Top Fuel cars are single-speed[4], I guess one could calculate the same using the diameter of the wheels, keeping in mind that the tire expands a lot compared to its size at rest. [1]: https://www.enginebuildermag.com/2024/12/4000-hp-twin-turbo-572-cid-smx-engine/ https://www.enginebuildermag.com/2024/12/4000-hp-twin-turbo-... [2]: https://www.youtube.com/watch?v=LnrZdrp77Cs https://www.youtube.com/watch?v=LnrZdrp77Cs [3]: https://www.enginebuildermag.com/2023/03/top-fuel-and-funny-car-engines/ https://www.enginebuildermag.com/2023/03/top-fuel-and-funny-...