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I saw this a while ago, and it seems to be a viable solution to increasing flow in the valvetrain, and also, combined with a few other factors, potentially increasing an engine's operating RPM.
Things that Limit RPM, and their solutions:
Poppet Valve Float
Potential Solution: This
Piston Velocity breaking rods
Potential Solution: Forged rods, low stroke, high bore
Flame front propegation
Potential solution: Direct injection
Maxed out crank bearings
Potential solution: Better bearings..7000rpm is nowhere near the limit for industrial bearings (think turbojet engines and fans), get some better ones.
Anybody else got any? Drivetrain loss from gear friction through the transmission might start to get ridiculous above about 20k, we might need to strictly use belt drive or helical CVT's for at least the inital reduction.
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twisted no more
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