By using fluid dynamics, a torque converter seamlessly transmits power from the engine to the transmission. Although they are complex devices, the fundamentals are simple in theory.

Along with horsepower, torque can be one of the most confusing automotive concepts to understand. It’s a rotational force created by the crankshaft of an engine. Torque affects acceleration and hauling power. But as electric vehicles become more popular, the way we view torque could change.