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valves

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    Video: BMW S 1000 RR valvetrain at full bore shocks and awes
    1266602340

    BMW S 1000 RR valvetrain – Click above to watch the video after the break
    It takes a ton of engineering prowess to create any functional internal combustion engine, but especially one that's capable of spinning itself up to 14,200 RPM... without blowing itself to bits in the process, of ...

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    Behold the cam-less future
    1166812440

    Mechanically actuated valves may soon be a thing of the past. We've made over a century's worth of improvement on the same basic combination of a camshaft, followers (or lifters), a poppet valve and a spring. We've gone from using pushrods and rocker arms to actuate the valvetrain to direct-acting ...

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