- Increase in torque and pulling power in the low and medium rotational speed range with simultaneous gain in peak power
- Optimal design of the partial-load cam geometry for the low to medium load and rotational speed range. Viewed vividly, the new M R engine offers almost the same high torque range in the lower and middle ranges as the previous S 1000 R engine paired with the peak power of the RR
- Reduction of gas exchange losses in the partial load range
- Reduction of exhaust emissions and optimised sound image
Background:
The design of the cam profiles determines whether the engine is optimised for either
- max. power at high rotational speeds,
- max. torque at low rotational speeds or
- a compromise of 1. and 2., but then does not deliver both in the best possible way.
By means of the ShiftCam technology it is possible to realise 1. and 2. in one engine at the same time by changing the used cam profile depending on the rotational speed. The result is an engine that provides both maximum peak power (high rotational speeds) and maximum torque at low rotational speeds.
Take a look at this video, it explains how ShiftCam works using the R 1250 Boxer engine as an example.