MotorTrend on MSN6mon
Porsche's Six-Stroke Engine Could Kill Four-Stroke Designs
This "two-times-three" Porsche idea is an attempt to leverage the best of both cycle types. Essentially, it’s a six-stroke ...
Evo6mon
Porsche patents cleaner, more powerful six-stroke engine design
Porsche has patented a revolutionary six-stroke internal combustion system. Contrast to all modern combustion engines that run the four-stroke Otto cycle that typically features one compression ...