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I once read about a diesel engine which was redesigned for even higher efficiency. One of the changes was tweeking the bore and stroke (without changing displacement) to minimize the surface area, slightly reducing the amount of heat that escapes through the cylinder walls. This might also reduce friction.
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e·co·mod·ding: the art of turning vehicles into what they should be
What matters is where you're going, not how fast.
"... we humans tend to screw up everything that's good enough as it is...or everything that we're attracted to, we love to go and defile it." - Chris Cornell
[Old] Piwoslaw's Peugeot 307sw modding thread
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