You'll love this. Tortuous 21,000 rpm on a race simulating dyno.

https://www.youtube.com/watch?feature=player_embedded&v=y3QG8V5BkME#t=43

^^^^^^^^ I'd like those asian girls to simulate some high rpm on my lap......to show me how the piston moves in the bore, and how important a tight ring seal is.

The things a man could do with 21,000 RPMs...

just for mild and a few others :D
http://i61.tinypic.com/153setv.jpg

Two thoughts come to mind:

It's amazing that these engines work at those speeds, OHC or pushrod.

Someday someone will invent a much simpler engine that will be almost bulletproof. The Wankel didn't work out and turbines are expensive and have other drawbacks. The piston engine will be a museum piece one day.

So true. Pistons engines really are barbaric but thats all we have for now.

well there was the Coates valve which is an excellent idea.

Honestly, my first thought- That's some damn good steel.

Everyone loves to see 'billet' (misnomer buzzword, I digress), but in a hard service like that you just have to respect the superiority of good steel. Of course proper heat treat, and excellent machining practices also contribute.

All I can say is that after see these video's -- AND I DON'T WANT TO START AN OIL THREAD DISCUSSION!!!!

I won't use ANYTHING but synthetic oil in my engines. While most are not spinning to this level of rpm's something has got to give- and knowing that there are only a few microns separating functional from disaster -- isn't too comforting.

When you really stop and think about the tolerances that these engines are being built to - I hope their gage calibration process/metrology is really up to snuff!!

Take care!

3pointstar

Of course it is, they can't afford for it not to be. Look up a Gage R&R study, the precision in a modern engine is no accident.

The level of sophistication and absolute quality that the US, the Japanese, the Germans, etc, can deliver day in, day out from a modern production line is not respected and almost incomprehensible.