Reading about Tesla cars I found that they can achieve 16000 RPM, single gear ratio 9.73:1 and differential ratio around 8.28:1, but... if I try to get RPM from car speed (max 200 km/h): RPM = car speed/(wheel radius) x differential ratio x gear ratio x (60/(2 x PI))
car speed: 200 km/h = 55.55 m/s wheel radius = 0.34 m differential ratio = 9.73 gear ratio = 8.28 conversion rad/s to rpm:(60/(2 x PI))
I get: RPM = (55.55/0.35) * 9.73 * 8.28 * (60/(2 x PI)) RPM = 122104.193095
which does not make sense
Am I missing something?