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Originally Posted by Darkness
The technology is basically putting better piston rings. ie thicker and better material. But there's not a whole lot that can be done, friction is still going to be there and thats what's going to kill it. I guess we'll just have to see what happens in the long term.
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Not really. The trend is to use thinner rings (made of stronger materials) with lower tangential loads to reduce friction and increase conformability.
At those speeds, I'd be concerned about the stability of the rings, the bearing loads, and the fatigue on the reciprocating parts.