What does VTEC mean?

[AlexandraAnn]

VTEC stands for Variable Valve Timing and Lift Electronic Control System. It is a self-developed variable valve timing and valve lift electronic control system introduced by Honda, capable of simultaneously controlling valve opening/closing timing and lift under two different conditions. More related information is as follows: 1. VTEC can appropriately adjust valve timing and lift according to changes in engine speed, load, water temperature, and other operating parameters, enabling the engine to achieve maximum efficiency at both high and low speeds. 2. In the VTEC system, the intake camshaft has three cam profiles, each pushing against three rocker arms on the rocker arm shaft. When the engine is at low speed or under low load, there is no connection between the three rocker arms. The left and right rocker arms push two intake valves respectively, giving them different timing and lift to create a squish effect.