Let’s say you had an inline four motor with gear driven dual overhead cams and four valves per cylinder. Let’s say that motor revved to 14,200 RPM; wouldn’t it be cool to cut away part of the valve cover and watch the cams in action at redline?
BMW thought so, so they filmed the above video as part of the S1000 RR’s development testing. Enjoy it guilt free, because it’s really science you’re watching here, not motor porn.
Source: Autoblog