BMW / Apache 310 – New engine patent leaksīasic idea of Shift Cam system is the same in case of the single-cylinder motor. The Shift Cam system is beneficial as it increases fuel efficiency and reduces emission in both low-rpm and high-rpm scenarios. This is achieved by shifting the inlet camshaft so that one of the two cam profiles is always in contact with the inlet valves. Just as the name suggests, Shift Cam works by altering the cam timing as well as the valve lift. This has resulted in some innovative tweaks to the single-cylinder motor. Among the primary challenges is to make the Shift Cam system compact, so that it can fit inside the relatively smaller sized single-cylinder motor. BMW single-cylinder Shift Cam engineĪs compared to Shift Cam system used in larger capacity BMW engines, the one to be used with the single-cylinder motor comes with a unique set of tweaks. The updated engine is likely to be shared with TVS as well for its 310cc Apache range. However, the primary candidates to benefit from this upgrade will be G310R, G310GS and G310RR. Another target could be C 400 GT, which also has a similar motor. Now a new patent reveals that BMW is planning to introduce the Shift Cam system with its 300cc single-cylinder engine.

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