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  • Engine dyno

    I have been wondering how those old engine dyno's worked, the ones that used a strap wrapped around a flywheel, the end of the strap is attached to a spring scale, (or was it a stack of weights?)

    What I have always wondered is, how do they work in actual practise? I have visions of a lot of friction on that strap, friction=smoke, heat etc.

    Was weight applied until the rpm started to drop?

    Any ideas?
    Thanks, Peter

  • #2
    See here-
    http://www.buckleyoldengineshow.org/...horsepower.htm
    I just need one more tool,just one!

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