What does VCT mean in cars?

[SanJeremiah]

VCT stands for Variable Camshaft Timing (I-VCT), or Variable Valve Timing; essentially, it refers to mainstream naturally aspirated engines. More details are as follows: 1. The principle of a VCT engine involves optimizing valve timing by adjusting the camshaft angle to achieve the best valve timing, thereby improving torque across all speed ranges. 2. It significantly enhances fuel economy, effectively increases the car's power and performance, and reduces fuel consumption and exhaust emissions. 3. For cars equipped with turbochargers, avoid turning off the engine immediately after high-speed driving or climbing a slope. Let the engine idle for 10 minutes before shutting it down. Cars with turbochargers accumulate carbon deposits several times faster than naturally aspirated engines.