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Anyone dyno a stock(ish) 11E?

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    #1

    Anyone dyno a stock(ish) 11E?

    We know that in 1982 Suzuki claimed 108 hp for the 11E. We also know how much a "manufacturer's claim" is worth (that and $2.90 will get you on a bus or train around here). Some think it was accurate, but only on an engine stand - not driving a chain/shaft and rear wheel. I've heard that referred to as 'gross' hp (as opposed to 'net' at the rear wheel).

    So, does anyone have an idea or guess as to how much horsepower the 11E actually made at the rear contact patch? My '82 made 99.3 after it was jetted for the APE pods and V&H exhaust. The mechanic neglected to do a 'before' run as I had requested. It had about 25 k miles on the clock, was 32 years old, and all maintenance had been performed.

    I've heard that the '82 made a little more than the '81 and '83. I'd be interested in 11E dyno figures for any '81 through '83 bike, regardless of modifications.
    1982 GS1100E V&H "SS" exhaust, APE pods, 1150 oil cooler, 140 speedo, 99.3 rear wheel HP, black engine, '83 red

    2016 XL883L sigpic Two-tone blue and white. Almost 42 hp! Status: destroyed, now owned by the insurance company. The hole in my memory starts an hour before the accident and ends 24 hours after.
    Tags: None
    #2
    I'm also curious. Mine has a new set of RS36's and a Kerker. The previous owner thought it had a "kit" in it but almost every bike I ever bought was supposed to have one.

    Comment

      #3
      Sure would be interesting to know, but never remember anybody checking it. I'm thinking the only "power making" changes to the 4V 1100's was the air intake openings changed each yr. and in "83" they changed the ex. cam....
      1983 GS1100E, 1983 CB1100F, 1991 GSX1100G, 1996 Kaw. ZL600 Eliminator, 1999 Bandit 1200S, 2005 Bandit 1200S, 2000 Kaw. ZRX 1100

      Comment

        #4
        I can't provide the '82 stock as you asked, but this may be interesting from an '83.

        One with V&H pipe, stock carbs/engine (92 RWHP)

        The other with Dynojet kit (93.5 HP).

        12K on the bike per service records.

        Dynojet kit = 1.5 HP near redline, and down a few HP lower down where you ride it more. I know 'mileage may vary' but seems like a lot of $ and effort if all you get is a whiff more power at the top, at least for a street rider.

        I think stock was in the low 90s generally speaking.

        As received after service, V&H pipe only:





        With the Dynojet (settings shown at top of chart):











        Last edited by oldGSfan; 07-07-2024, 02:38 PM.
        Tom

        '82 GS1100E Mr. Turbo
        '79 GS100E
        Other non Suzuki bikes

        Comment

          #5
          Thanks, Mr. Turbo. That's just what I was looking for. A few questions:

          DIN and SAE corrections? I'm familiar with correcting for altitude, humidity, etc., but what do those stand for?

          I guess my 99.3 isn't too shabby. Now for some conjecture. If 108hp was 'claimed' but the rear wheel number was actually closer to 90, what could I 'claim' for my 11E if the engine was on a stand? 115? 120?
          1982 GS1100E V&H "SS" exhaust, APE pods, 1150 oil cooler, 140 speedo, 99.3 rear wheel HP, black engine, '83 red

          2016 XL883L sigpic Two-tone blue and white. Almost 42 hp! Status: destroyed, now owned by the insurance company. The hole in my memory starts an hour before the accident and ends 24 hours after.

          Comment

            #6
            Originally posted by Rob S. View Post
            Thanks, Mr. Turbo. That's just what I was looking for. A few questions:

            DIN and SAE corrections? I'm familiar with correcting for altitude, humidity, etc., but what do those stand for?

            I guess my 99.3 isn't too shabby. Now for some conjecture. If 108hp was 'claimed' but the rear wheel number was actually closer to 90, what could I 'claim' for my 11E if the engine was on a stand? 115? 120?
            Searched, DIN is an estimate of the crank HP, so it's a bit higher. The SAE and DIN may be both corrected for atmospheric conditions. Yes, 99.3 seems quite good. You could add some % factor by doing the math between the measured and corrected DIN I suppose. I think those factors are pretty slim though. I'm just going on foggy memory but 10% seems more like it. I dunno, not a pro at this but that factor of gearbox/chain loss seems to stick in my mind. I think your bike could be hitting 110HP if what I recall is accurate - which is quite good.

            Pretty sure the 108HP claimed was at the crank. I don't think I ever say RWHP by manufacturer.
            Last edited by oldGSfan; 07-08-2024, 03:39 PM.
            Tom

            '82 GS1100E Mr. Turbo
            '79 GS100E
            Other non Suzuki bikes

            Comment

              #7
              Thanks. Did you ever dyno your turbo 11EZ? I'm sure you supplied the buyer with all that documentation you received when you bought it, but I sure hope you kept copies. Important pieces of history!
              1982 GS1100E V&H "SS" exhaust, APE pods, 1150 oil cooler, 140 speedo, 99.3 rear wheel HP, black engine, '83 red

              2016 XL883L sigpic Two-tone blue and white. Almost 42 hp! Status: destroyed, now owned by the insurance company. The hole in my memory starts an hour before the accident and ends 24 hours after.

              Comment

                #8
                Only heard of Rear wheel HP or crankshaft HP. Don't remember which the magazines use. anything estimated just seems like good guess.. Turbo HP, Thinking just keep turning boost up, last number before eng. fails is Max. HP.
                1983 GS1100E, 1983 CB1100F, 1991 GSX1100G, 1996 Kaw. ZL600 Eliminator, 1999 Bandit 1200S, 2005 Bandit 1200S, 2000 Kaw. ZRX 1100

                Comment

                  #9
                  Originally posted by Rob S. View Post
                  Thanks. Did you ever dyno your turbo 11EZ? I'm sure you supplied the buyer with all that documentation you received when you bought it, but I sure hope you kept copies. Important pieces of history!
                  On a 110F + day it did 182 HP, running a smallish Mikuni HSR42 carb (could have gone with 48 per the dyno guy) and 15 lbs boost. At Bonneville it ran 25 lbs and an S&S Super B carb. I think pushing at least 200HP, at sea level. there are calculators and some said 220 to 240 with 25 lbs boost and 10K RPM. The bike had no rev limiter and the dyno guy ran it up to 12K a couple of times, no issues.

                  Tom

                  '82 GS1100E Mr. Turbo
                  '79 GS100E
                  Other non Suzuki bikes

                  Comment

                    #10
                    Don't ever let me ride a bike like that.
                    1982 GS1100E V&H "SS" exhaust, APE pods, 1150 oil cooler, 140 speedo, 99.3 rear wheel HP, black engine, '83 red

                    2016 XL883L sigpic Two-tone blue and white. Almost 42 hp! Status: destroyed, now owned by the insurance company. The hole in my memory starts an hour before the accident and ends 24 hours after.

                    Comment

                      #11
                      Cycle magazine used to dyno many of their test bikes. I don't think they did so every year, but there should be a dyno curve from them somewhere.
                      Ed

                      To measure is to know.

                      Mikuni O-ring Kits For Sale...https://www.thegsresources.com/_foru...ts#post1703182

                      Top Newbie Mistakes thread...http://www.thegsresources.com/_forum...d.php?t=171846

                      Carb rebuild tutorial...https://gsarchive.bwringer.com/mtsac...d_Tutorial.pdf

                      KZ750E Rebuild Thread...http://www.thegsresources.com/_forum...0-Resurrection

                      Comment

                        #12
                        Originally posted by Rob S. View Post
                        Don't ever let me ride a bike like that.
                        You were plenty dangerous with half the horsepower.
                        "Thought he, it is a wicked world in all meridians; I'll die a pagan."
                        ~Herman Melville

                        2016 1200 Superlow
                        1982 CB900f

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