F1, trickle-down, etc.

[Wild Thing]

The F1 engines are not running "insane" piston speeds. Look no further than a 100cc kart engine. They have a 5cm stroke and rev to 24000rpm, while F1 engines have around 4cm stroke and rev only 18000rpm. And kart engines have mandatory steel con-rod, none of those $$$ materials that the F1 engines use. What impresses me is the valve acceleration that the F1 engines run. The valves move so fast that valvesprings are simply to slow to close them (a spring takes time to decompress even without load).


> Hmm...For several years now, Kevin Cameron, an engineer who writes an
> excellent column for _Cycle World_, has said exactly the opposite.  
> Current F1 engines have far higher specific outputs than current
> front-line 4-stroke motorcycle engines.  Pneumatic valve gear is not used
> by any of the bikes.  None of them approach the insane piston speeds
> currently seen by F1 engines, nor do they use materials anywhere near as
> exotic.  The 2-strokes used by the premier classes are not particularly
> sophisticated, and haven't been developed to significantly higher power
> levels in several years, primarily because their chassis and tires simply
> won't handle anymore than they have.


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