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Message: <blockquote data-quote="MeanStreak" data-source="post: 65370" data-attributes="member: 350">Valvetronic minimizes pumping loss by reducing valve lift and the amount of air entering the combustion chambers. Compared with conventional twin-cam engines with finger followers, Valvetronic employs an additional eccentric shaft, an electric motor and several intermediate rocker arms, which in turn activates the opening and closing of valves. If the rocker arms push deeper, the intake valves will have a higher lift, and vice-versa. Thus, Valvetronic has the ability to get deep, long ventilation (large valve lift) and flat, short ventilation (short valve lift), depending on the demands placed on the engine.</blockquote>