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Gs1100, what is a G3 cam?

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    Gs1100, what is a G3 cam?

    When I bought my 81gs750, with 82gs1100 engine, 1166 kit,I was told it had G3 cams.
    I can't find any info on the search Google?
    What do I have?
    Is their another part number I can Research?
    What is the power Band?
    Redline?
    Lash Spec?
    Is this a good street cam?

    #2
    cam specs. google is ure friend...... https://www.google.com/search?rlz=1C....0.RrSEai5Mqk4

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      #3
      Thanks, I tried that with little Results!
      Looking for cam card specs?
      My bike doesn't seem to have the low end tq a stock one has,thought it was probably due to the cams,
      It really comes alive on theach mid and top!

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        #4
        How the cams are degrees can have significant impact. Sounds like you might have your closer to 110/110?

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          #5
          Originally posted by 81gs7501166 View Post
          Thanks, I tried that with little Results!
          Looking for cam card specs?
          My bike doesn't seem to have the low end tq a stock one has,thought it was probably due to the cams,
          It really comes alive on theach mid and top!
          That grind is similar to Web 70-112, description is
          Strong mid and upper end performance for street / strip. Must remove oil bump from rocker. Requires Exhaust System, Hardwelded Rockers, High Compression Piston, and Performance Valve Spring Kit.
          sigpic
          09 Kaw C14 Rocket powered Barcalounger
          1983 GS1100e
          82\83 1100e Frankenbike
          1980 GS1260
          Previous 65 Suzuki 80 Scrambler, 76 KZ900, 02 GSF1200S, 81 GS1100e, 80 GS850G

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            #6
            The G3 grind is an old cam motion Grind, fast road.We stock them , now made for us by web. lash: .005" , lift 0.345" ,duration @ 0.050 254 deg , lobe centres 110 deg same for in and ex. intake open 17 deg btdc , closes 57 deg abdc, ex closes 57 deg abdc , closes 17 deg atdc. hope this helps. nick
            Last edited by nickp; 10-24-2017, 05:56 PM.

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              #7
              Thanks!
              Someday when time permits I may advance it a tad for a little more Bottom?

              Comment


                #8
                Originally posted by 81gs7501166 View Post
                Thanks!
                Someday when time permits I may advance it a tad for a little more Bottom?
                Other way, you want narrower lobe centers for more midrange. With those cams you would probably want to try 108/108 and see how you like it before going any farther. I am running 106I/108E on my 1100E with stock cams and it adds significant midrange over the stock lobe centers, which are fairly goofy at 110I/109E.

                Web Cams explains it all here: http://www.webcamshafts.com/pages/degreeing.html

                At the bottom of the page is some info explaining the effects of larger/smaller lobe centers.


                Mark
                1982 GS1100E
                1998 ZX-6R
                2005 KTM 450EXC

                Comment


                  #9
                  Nick, you are a little off on the open & close #s. They are 20/60 on the intake & 60/20 on the exhaust. If you are putting these in a STREET bike, I would change the cam timing to 105 intake & 107 exhaust to build better bottom end & STOUT midrange. On a drag motor those are small cams but I would go 109/111.
                  Ray.

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                    #10
                    hi Ray...i just read it off the web timing card in the box......are the figures you have in mind at 40 or 50 thou? nick

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                      #11
                      Those are at .050 & straight off the Cam Motion spec sheet I have, since he asked for G3 specs, not the Web remake. .345 lift & 256 duration @ .050. I ALWAYS use .050 but I know some use .040, never did get that reasoning though.
                      Ray.
                      Last edited by rapidray; 10-26-2017, 04:46 PM.

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                        #12
                        I build classic v8 car engines, to improve mid and low u advance the cam,to improve top u retard cam, so how is it possible to retard the cam for more mid-bottom?
                        Last edited by Guest; 10-27-2017, 07:02 AM.

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                          #13
                          Try re-reading what you just posted.
                          Ray.

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