BorgWarner Turbo Systems says it has developed a new ‘K04 Twin-Scroll turbocharger’ which will be used for the first time in a spark-ignition engine with direct fuel injection and turbocharging. The ...

While BMW certainly used to favor naturally aspirated engines, the German automaker has been relying on boosted fours and sixes much more frequently over the last 20 years. BMW has experimented with ...

Subaru was experimental in the 1990s, and for the Legacy, it made one of the weirdest engines we've ever seen. Subaru is conservative these days. It sticks with technologies it knows well, evolving ...