Here's why:
* Crankshaft: The crankshaft is the central rotating shaft in the engine. Each crank throw on the crankshaft corresponds to one piston.
* V6 configuration: A V6 engine has six cylinders arranged in two banks of three, angled to form a V shape.
* Firing order: The cylinders fire in a specific sequence (e.g., 1-5-3-6-2-4).
* One revolution: For the entire engine to complete one full cycle of firing, all six cylinders need to fire once.
Since the crankshaft has one crank throw for each piston, and a V6 engine has six pistons, the crankshaft makes one full revolution for every two revolutions of the engine (where "revolution of the engine" refers to all six cylinders firing once).
