In that search for the goldilocks middle ground, OEs have developed VVT technology, and most domestic performance cars from Detroit offer some form of this technology standard. VVT has the magical ...

EPA tests claim an estimated 5.5 to 7.5 percent fuel-economy increase. Variable valve timing (VVT) hydraulically advances and retards the camshaft, in theory improving both fuel mileage and ...

What about the other V-word systems, such as Toyota's VVT-i, Nissan's CVTC, or Mitsubishi's MIVEC? All of those letter scrambles are part of the wonderful world of variable valvetrain systems ...

When it comes to VVT, it's all about the twist. Here's why. VVT isn't new technology. It's been common in cars since the 1990s. Until then, engineers walked a fine line trying to balance an engine ...

If your engine oil has not been changed on schedule, it could damage the VVT-i system. Change engine oil as recommended by your mechanic or the car manufacturer. Courtesy Photo It is obvious that ...

Harley-Davidson has filed a patent application for a variable valve timing (VVT) V-twin engine, possibly for the Sportster to improve economy and reduce emissions. The iconic American manufacturer has ...

Unlike many rivals, which now have electrified or mild hybrid engine options, the Aygo sticks with its tried-and-tested three-cylinder 1.0 VVT-i, which has had its intake and mounts re-engineered ...

Engines range from 1.0 VVT-i to 1.33 VVT-i automatic Readers report Real MPG to be between 35–65 mpg The Toyota IQ won't be bought on looks. It's runtish, though less abbreviated than a Smart. It ...