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 ...

Earlier this year Toyota launched the iQ micro-car in Europe and now the Japanese automaker has unveiled a more “performance-oriented” version of the cute and trendy iQ. The new engine is a 99hp VVT-i ...

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 ...

Toyota has added an all-new 1.33-litre Dual VVT-i petrol engine with stop-start technology to the Toyota Auris. Toyota says that the new powertrain with stop-start results in 17% lower CO2 emissions ...

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 ...

SAE Transactions, Vol. 112, Section 3: JOURNAL OF ENGINES (2003), pp. 124-134 (11 pages) An experimentally derived map of the engine volumetric efficiency is usually employed to control the A/F ratio ...