Variable Valve Timing with Intelligence

VVT-i is based on the principle of maximising performance by matching the timing of the engine's air intake and exhaust to your driving situation - idling, acceleration, passing and cruising.

The on-board 32-bit microcomputer on the VVT-i engine continuously monitors the RPM reading, throttle opening and other factors to optimise air intake and exhaust. It makes the necessary adjustments every 1/1000th of a second.

For instance, to give you a performance boost during full acceleration, the computer turns the air-con system off for the few seconds when you need the extra power. Once you have returned to stable speed, it turns the air-con system on again. This can all happen so fast, so efficiently - you will not feel any change in comfort.

The three main advantages of driving with a VVT-i engine are:

More Power

By optimising valve timing, the engine delivers powerful torque at low to medium engine RPMs. This continuous optimisation provides smooth acceleration every time.

Better Fuel Efficiency

The VVT-i engine uses fuel more effectively and keeps wastage to a minimum.

Cleaner Exhaust

With more efficient combustion that lowers exhaust emissions, the Toyota vehicle is more environmentally friendly while improving engine performance.

The engine manifold intake and exhaust have been reversed in the VVT-i engine. The intake is in the front and the output is in the rear of the engine. This improves efficiency, reduces intake noise, and shortens the distance to the catalytic converter.