Variable Valve Timing-Intelligence, or VVT-i, is a variable valve-timing system developed by Toyota that debuted in the 1990s. VVT-i uses input from sensors and driving conditions to improve engine ...

In order to set a stage for what follows, let's first revisit some of the fundamentals involved in how valve timing relates to power output. And to further clarify how "power" is defined in the ...

Ducati has announced it will introduce new engine technology that will boost power and torque, improve fuel economy, reduce emissions and won’t affect servicing intervals. Ducati Testastretta engine ...

Valve timing is the most important factor determining an engine's character. A good illustration of this is provided by the following curious historical fact. In 1947 the Standard Motor Company of ...

The hunt for efficient engine valve technology can be a never-ending journey into cam timing, various combustion cycles, and lift and duration adjustments. For that reason, some companies believe ...

Mihai has even branched beyond the usual confines of an automotive writer from time to time, however, his heart is still close to anything car-related. He's most at home retelling the story of some ...

For decades, timing belts have divided mechanics and drivers alike. On one hand, belts run quieter than chains, and replacing them can be straightforward on certain engines. On the other, they can ...