The RPM, or "Revolutions Per Minute" is the speed at which the engine turns at any given moment. In other words, the tachometer displays the RPM using sensors to measure the crankshaft rotations ...

Because RPM measures engine speed, it plays a key role in areas related to engine specifications. It is utilized to calculate horsepower, leveraging the formula “Horsepower = Torque x RPM ...

The legendary 4.0 L Cosworth GMA V12 makes 607 hp and 333 lb-ft of torque in the "regular" T.33 where it's mated to a six-speed manual transmission. Murray says that the T.33S will take this same V12 ...