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  • Raw Horsepower

    dOES ANYONE KNOW THE HORSEPOWER RATING ON THE "79"XS11F

  • #2
    I believe the factory claimed 95HP, but I am probably wrong.
    Gary Granger
    Remember, we are the caretakers of mechanical art.
    2013 Suzuki DR650SE, 2009 Kawasaki Concours 1400, 2003 Aprilia RSV Mille Tuono

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    • #3
      Horse-drawn XS

      S'OK Sixtysix

      It's 95bhp everywhere I've read too, so I think you are right.
      XS1.1 sport - Sold June 2005 :-(
      Guzzi 850
      Z1000

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      • #4
        ok ... IF Gary is right ...does that mean he is wrong ?
        wpc57

        '81LH Midnight Special "Margret"

        I ain't as good as I once was..but I am as good once as I ever was.... (Toby Keith)

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        • #5
          Errrrr
          XS1.1 sport - Sold June 2005 :-(
          Guzzi 850
          Z1000

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          • #6
            Arent HP and BHP a bit different, like BHP numbers tend to be about 25% higher than HP?
            1979 XS11F Standard - Maya - 1196cc (out of order)
            1978 XS11E Standard - Nina - 1101cc
            http://www.livejournal.com/~xs11

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            • #7
              .... <B>igger <H>orses ?
              Ken Talbot

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              • #8
                Originally posted by Snow
                Arent HP and BHP a bit different, like BHP numbers tend to be about 25% higher than HP?
                brake horsepower: abbr. bhp or b.hp. The actual or useful horsepower of an engine, usually determined from the force exerted on a friction brake or dynamometer connected to the drive shaft

                Horse Power: hp - A unit of power in the U.S. Customary System, equal to 745.7 watts or 33,000 foot-pounds per minute


                That's the dictionary response... is the difference just in how they are measured?
                1979 XS1100 Special with 81 carbs

                Richmond, Virginia, USA

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                • #9
                  If there isn't any other available info, I would speculate that "rear wheel horsepower" would be the same as bhp and "flywheel horsepower" would measured as just hp instead of bhp?
                  1979 XS11F Standard - Maya - 1196cc (out of order)
                  1978 XS11E Standard - Nina - 1101cc
                  http://www.livejournal.com/~xs11

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                  • #10
                    I did some searching around on the Internet and found this article that gets into bhp vs hp.
                    1979 XS1100 Special with 81 carbs

                    Richmond, Virginia, USA

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                    • #11
                      Seems to me I read something..somewhere that said the the original definition of horsepower was the "ability to move 18,000 lbs, one foot in one minute" I aint sure zactly but I am pretty sure its something like that...
                      And the actual and reported horsepower for almost any engine can be WAY misleading..(I have a 78 plymouth fury "old squadcar" the 440 in it is rated at 195hp at 5200 rpm) Trust me when I say they lied!! Got the time slips to prove it.
                      For nowdays almost everything is rated at "the wheel" with everything that can be turned on is, and running.
                      '81 sh " Maime" The Nature of The Beast

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