Variable valve timing is used on both the intake and exhaust sides.

As its name implies it comes with variable valve timing.

At the time of its launch in 2007, it was the only motorcycle engine to feature variable valve timing.

The valve timing was changed with the exhaust valves opening earlier and closing later.

This was the first production engine to use variable valve timing.

In an industry first for a V8, the engine now has variable valve timing.

The impact of valve timing on engine performance and emissions.

Also first engine in production car with variable valve timing.

The major difference from the L91 is the addition of variable valve timing.

The engine uses variable valve timing to increase fuel economy.