The supercharged 4.2-liter V8 under the XKR’s hood features twin air intakes and continuously variable valve timing—mated to what Jag claims is a “class-leading” six-speed automatic paddle-shift ...

Variable valve timing is one of the key technologies in the further development of automotive engines. A variation of valve lift profiles and variable valve timing in the engine operation map offer ...

Set to debut in a new 1.6-liter 4-cylinder Smartstream turbo engine, Hyundai's new valve tech is able to continuously change the duration of valve openings to suit driving conditions, which Hyundai ...

In our April 2013 issue, we went one-on-one with the GM powertrain teams responsible for the new LT1 V-8, which is standard equipment in all ’14 Corvettes. We showed you the engine’s block, rotating ...

Hyundai figured out continuously variable valve duration in a production vehicle (or at least one about to hit production). increase in performance of 4 percent with 5 percent better efficiency, along ...

Hyundai Motor Group has developed the world’s first Continuously Variable Valve Duration (CVVD) technology to feature in future Hyundai vehicles. The innovation was revealed at Hyundai Motorstudio ...

Hyundai Motor Group (HMG) says it has developed the world’s first ‘Continuously Variable Valve Duration’ (CVVD) technology to feature in future Hyundai and Kia vehicles. The innovation was revealed at ...