GM Powertrain announced today it will deliver a 3.6-liter V-6 gasoline engine with direct injection and variable valve timing (VVT) technologies in the 2008 model year. A vehicle application will be ...

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 ...

Not too long ago, we reported on the news that Indian Motorcycle had a new liquid-cooled engine in the works. That engine was suspected to be the same one that appeared under the Victory name a few ...

Downsizing and turbocharging. For a car nut, those two words spell trouble. Most automakers, however, think otherwise. Mazda tries to keep the N/A flame alive, and so does Toyota. If you’re living in ...

SAE Transactions, Vol. 114, Section 3: JOURNAL OF ENGINES (2005), pp. 167-179 (13 pages) An accurate air flow rate model is critical for high-quality air-fuel ratio control in Spark-Ignition engines ...