Interesting - thanks for posting that.
Friction reduction approaches mentioned in the article:
- cylinder-coating materials
Quote:
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In the Nanoslide coating process, the cylinder walls are sprayed with an ultrathin layer of a molten iron-carbon alloy. A special finishing process puts a smooth surface on this extremely hard coating, at the same time opening tiny pockets in the metal that retain oil for lubrication.
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- advanced honing techniques (abrasive & laser based)
- smaller bearings
- straighter chain runs (camshaft chain)