valves

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 ...

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 ...