horsepower?

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  • sae3231

    #1

    horsepower?

    my friend and I are discussing the differences in performance from a 77 gs750 and an 82 gs1100l, can anybody tell me the stock horsepower ratings for these two bikes? I keep getting conflicting information that ranges from 75 to 98 for the 82 and I get shrugs when discussing the 77. 75hp seems low for a 1100. any help would be great
  • gsbill
    Forum Guru
    Charter Member
    Past Site Supporter
    • Mar 2004
    • 9223
    • Earth

    #2
    Should be at about 100 hp..@ 8,700 rpm...All 1100 motors I found specs for had the same HP for 1982.
    EULC ON

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    • Guest

      #3
      But that is bhp measured at the crank, correct? For exapmle, the '82 GS1100E was rated at 102/103 in one report I read. Should put rwhp at about 85 or so for the 1100???

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      • JHawkins

        #4
        Originally posted by sae3231
        my friend and I are discussing the differences in performance from a 77 gs750 and an 82 gs1100l, can anybody tell me the stock horsepower ratings for these two bikes? I keep getting conflicting information that ranges from 75 to 98 for the 82 and I get shrugs when discussing the 77. 75hp seems low for a 1100. any help would be great
        My 79 gs750L was supposedly 72 hp stock at the crank. I had it on the dyno last fall and she came out at 54 to the rear wheel. That is pretty much bone stock.

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        • pano
          Forum Sage
          GSResource Superstar
          Past Site Supporter
          • Apr 2003
          • 1818
          • MA

          #5
          I had my 821100e on a dyno years ago with a 4-1 exhaust and jetting with the stock air box and I got 92 at the wheel.
          1982 GS1000S Katana
          1982 GS1100E

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          • speedy400

            #6
            Hate to jack your thread sae. But I have a similar question. I have an 82' gs850l, has a UNI filter, modded airbox, and the stock mufflers replaced with 2 megaphone straight through glasspacks. Just incase(:twisted I wanted to make it faster, someone said I could basically drop in an 1100 motor. What kind of hp number diffrences would their be between mine and say a stock 1100? Would it be better to spend my money on other performance parts?(ignition, possibly turbo?) I'm a huge motor head so I could do either, but I'd like to spend it wisely. Thanks-darren

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            • gsbill
              Forum Guru
              Charter Member
              Past Site Supporter
              • Mar 2004
              • 9223
              • Earth

              #7
              Originally posted by Cassius086
              But that is bhp measured at the crank, correct? For exapmle, the '82 GS1100E was rated at 102/103 in one report I read. Should put rwhp at about 85 or so for the 1100???

              I would guess that your estimate is close..
              EULC ON

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              • Einar J Skog

                #8
                Hi

                This is the numbers that I have found.

                1978 Gs750 =72 Hp
                1982 Gs850 =80,5 Hp
                1982 Gs1100GK =98 Hp



                Gs1000GL
                (1100Wiseco-Dynojet stage 1-Kn filter-Degreed cams-Lazer Competition 4-1)
                Testing the bike on dyno next month

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