VVT-i

Also called Dual VVT-i, VVTL-i, VVT-iE, Variable Valve Timing with intelligence

Draft: this page has not had its final check yet, so check the sources behind anything you rely on.

Toyota's variable valve timing, which shifts when the valves open as the engine runs.

The story

History: facts, each with the kind of source it rests on

VVT-i stands for Variable Valve Timing with intelligence. It came in 1995 on the 2JZ-GE in the Toyota Crown, and uses engine oil pressure on an actuator to turn the intake camshaft against its drive. A published reference

Dual VVT-i times both the intake and exhaust camshafts, first on the 3S-GE in 1998. VVTL-i also changes how far and how long the valves open, first on the 2ZZ-GE in the 1999 Celica. VVT-iE moves the intake camshaft with an electric motor. A published reference

Found on

Every generation on the site whose dossier or engine names it