Report: Porsche is working on tri-turbo system for next 911 Turbo
If the Porsche 911 Turbo wasn’t fast enough to begin with, the automaker is kicking power up even further with an all new tri-turbo system. The horizontally opposed 3.8-liter six-cylinder is currently fitted with a twin-turbo, and the next generation 991 is being used in the last stage of development for the new tri that [...]

