Since the beginning of hot rodding, gearheads have endeavored to increase the performance of internal combustion engines through the optimization of valve timing. It's been proven time after time that ...

When it comes to eight-cylinder gas engines, GM has some twisted engineers who are hard at work in its labs. No, they're not crazy, unless you consider the almost fanatical obsession they have with ...

Decades ago (OK, half a century or more), there was a product advertised in many of the performance magazines called the Varicam. The idea was a set of springs attached to a centrifugal device that ...

QUESTIONI'm in the process of transplanting an L77 from a 2012 Caprice 9C1 PPV [police pursuit vehicle] along with its 6L80E [six-speed, longitudinally mounted electronic automatic overdrive ...

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 ...

Suzuki’s R&D department have filed a flurry of patent applications showing a variable valve timing system specifically aimed at the Hayabusa hyper bike – suggesting that even as the Busa hits its 25th ...

Maruti Suzuki has launched the new 2.4L Grand Vitara more powerful sporting a 2.4L, 163.5 Bhp engine as against the current 2.0L, 120 bhp one. A 2.4 litre VVT (Variable Valve Timing) engine delivering ...

Many cars today including the Toyota RunX, Toyota Allex, Toyota Raum, Toyota Vitz, Toyota Spacio, keyword being Toyota, specifically small fuel-sipping cars from the manufacturer. Whenever one is in ...