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  1. BramCohen

    Mazda rx8 wankel efficiency nearly there?

    If the big problem with the wankel is surface to volume ratio, couldn't that theory be run in reverse, as an improvement to the piston? I'm a total n00b about this stuff, but I'm guessing that a long thin piston suffers from too much surface area when fully extended, and a short stubby one has...
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