• NoSpiritAnimal@lemmy.world
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    6 months ago

    A Hemi indicates the top of the combustion chamber has a Hemispherical shape, rather than the typical frying pan type shape.

    The increased size of the chamber means additional fuel and air can be introduced, which increases power output.

    It’s old tech like carburetors. It’s wasteful on fuel, but MOPAR fans love it.

    • ridethisbike@lemmy.world
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      6 months ago

      Doesn’t it also mean a higher compression ratio? Meaning more power behind the same A:F ratio? Or am I as dumb as the guy who put the stickers on that truck?