Variable valve timing
Videos
Variable valve timing is the process of altering the timing of a valve lift event in an internal combustion engine, and is often used to improve performance, fuel economy or emissions. It is increasin
Cylinder head of Honda K20Z3. This engine uses continuously variable timing for the inlet valves
Hydraulic vane-type phasers on a cut-out model of Hyundai T-GDI engine
VVT-i
Videos
VVT-i, or Variable Valve Timing with intelligence, is an automobile variable valve timing petrol engine technology manufactured by Toyota Group and used by brands such as Groupe PSA, Toyota, Lexus, Sc
Variable valve timing
…VVT (Chrysler, General Motors, Proton, Suzuki and Maruti Suzuki, Isuzu, Volkswagen Group, Toyota) VVT-i, VVTL-i (Toyota, Lexus) VTVT (Hyundai…
Cutaway view of Variable Valve Timing with intelligence on a ZR engine in Techniquest Glyndŵr
The 2ZZ-GE engine, the first and only engine to feature VVTL-i
The BEAMS 3S-GE 5th-generation engine ("Black Top"), the first to feature Dual VVT-i
The 1UR-FSE engine, the first to feature VVT-iE