Normally a supercharger is required in a Miller-cycle engine, which makes Mazda's new mill particularly intriguing. It will be combined with Mazda's first CVT, and thanks to a 222 lb. diet ...

There's no word yet on whether the engine will make it to the US. To get the most of the system, the EA211 TSI Evo uses the more efficient Miller combustion cycle and runs at a high 12.5:1 ...

Decades later, Ralph Miller patented the Miller-cycle engine in 1957 for even more efficiency. The simple genius behind the Miller cycle is that it leaves the intake valve open during part of the ...