Timing belts govern the operation of the engine in your vehicle at all times, which means any issue or failure of the belt means your car's not going anywhere.

Let us warn you right now: removing and replacing the timing chain on your Toyota VVTi engine is a very complicated process. If you have never done that and are willing to learn, make sure this is ...

This article presents the development of coordinated control of throttle, spark advance, and variable valve timing (VVT) in a model predictive control (MPC) framework for engine idle speed control ...

W. Hannibal, A. Bertsch, VAST: A New Variable Valve Timing System for Vehicle Engines, SAE Transactions, Vol. 107, Section 3: JOURNAL OF ENGINES (1998), pp. 1032-1038 ...