EVO X Twin Clutch SST (Sport Shift Transmission)

LANCER EVOLUTION X


Twin Clutch SST (Sport Shift Transmission)


The mechanism
Twin Clutch SST puts odd (1st, 3rd, 5th) and even (2nd, 4th and 6th) gears on separate input shafts, each connected to an individual clutch. With both clutches under precise system control, this arrangement allows lightening-fast, smooth and lag-free gear changes with no interruption in power delivery. Using clutches instead of a torque converter to transmit power makes the Twin Clutch SST simpler in structure and reduces power transmission losses for higher transmission efficiency that leads to improved fuel mileage.


Drive modes
Twin Clutch SST allows the driver to switch between three shifting programs - Normal, Sport and S-Sport - to cover the full range of driving situations, from town use to sporty motoring on open roads.

a. Normal mode
For use around town and other normal driving situations, Normal mode scheduling uses relatively low-speed shift points to deliver unobtrusive shifting for maximum comfort together with optimum fuel economy.

b. Sport mode
For use when driving in the mountains or when engine braking is required, Sport mode scheduling uses higher shift points and quicker shifting to deliver instant throttle response that instills in the driver a closer man/machine relationship.

c. S-Sport mode

Compared with Sport mode, S-Sport mode scheduling keeps the engine turning at higher revs while allowing lightening-fast shifting.