What is cam timing?

Cam timing refers to the precise positioning of the camshaft in relation to the crankshaft in an internal combustion engine. It dictates when the engine's valves open and close during the four-stroke cycle, impacting engine performance, efficiency, and emissions. Proper cam timing ensures optimal airflow into the combustion chamber and exhaust expulsion, which is crucial for achieving desired power output and fuel economy. Adjusting cam timing can enhance engine characteristics, such as torque and horsepower, across different RPM ranges.