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Internal combustion was 'settled science' by the end of WWII and was thoroughly regression tested on the drag strips of Southern California. You can go faster by drilling holes in the tops of the pistons. Who knew?
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Is that the go-faster trick of drilling down behind the compression ring so combustion pressure increases the sealing force on the power stroke? Allows you to run lower ring tension for reduced friction on the rest of the strokes at the cost of a bit more oil consumption. A nice example of using gas pressure instead of mechanical spring force. Could potentially work in a "burn and coast" optimized vehicle that spends almost no time off peak bsfc.