KaareKanin t1_ja6ucmc wrote on February 27, 2023 at 7:21 AM

Reply to comment by quadmasta in ELI5: Why does farming equipment require such low horsepower compared to your average car? by thetravelingsong

But on the flip side, gear down a normal car engine to output the same rpm, and the torque would be higher (with the premise that a car engine has more power).

Cars don't require much power, only the drivers do. Power is king, torque is just a matter of gearing

quadmasta t1_ja7h7mc wrote on February 27, 2023 at 12:29 PM

No it wouldn't. Gasoline vehicle engines are designed for higher RPMs and don't make peak power until higher up in their operating range. Tractor engines are designed for low RPM operation and have their peak power waaaaay down in the RPM range.

KaareKanin t1_ja7krne wrote on February 27, 2023 at 1:04 PM

A given power figure on a shaft rotating at given speed will give the same torque. This is how it works. You can't really argue with this. So I say again, gear both drivetrains to the same output speed, and the one with more power has more torque