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DT125R FORUM

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  4. Makita Piston

Makita Piston

Scheduled Pinned Locked Moved Engine
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  • S Offline
    S Offline
    SpookDog
    wrote on last edited by
    #11

    @declan
    Wow, I wish I lived in the same reality as you...
    I think πŸ€”

    declanD 1 Reply Last reply
    0
    • CalumC Offline
      CalumC Offline
      Calum
      wrote on last edited by Calum
      #12

      I mean, typically that's how it goes. The higher the compression the more power. Typically.... You need fueling and ignition timing to accommodate.

      Always Originate, Never Pirate!

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      • S SpookDog

        @declan
        Wow, I wish I lived in the same reality as you...
        I think πŸ€”

        declanD Offline
        declanD Offline
        declan
        wrote on last edited by
        #13

        @SpookDog πŸ‘Œ

        D 1 Reply Last reply
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        • declanD declan

          @SpookDog πŸ‘Œ

          D Offline
          D Offline
          DTR+NSR
          wrote on last edited by
          #14

          When my dt was running 225psi it had incredible midrange but wouldn't rev high.

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          • CalumC Offline
            CalumC Offline
            Calum
            wrote on last edited by
            #15

            225PSI! Wow! That's mental.

            Always Originate, Never Pirate!

            D 1 Reply Last reply
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            • CalumC Calum

              225PSI! Wow! That's mental.

              D Offline
              D Offline
              DTR+NSR
              wrote on last edited by
              #16

              @Calum that was a cold engine aswell! That's with +1mm over bore. Running a mick abbey modded head. Which is quite a few cc's less volume than stock 3mb.
              Runing two base gaskets and a spacer plate now. To lower the compression which has also raised the port timing. I miss the heaps of midrange but not the bruised foot from kickstarting it lol.

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              • CalumC Offline
                CalumC Offline
                Calum
                wrote on last edited by
                #17

                Yeah I bet 🀣

                Always Originate, Never Pirate!

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                • S Offline
                  S Offline
                  SpookDog
                  wrote on last edited by
                  #18

                  @declan
                  Sorry, didn’t mean to offend. Plus I gave πŸ‘ƒπŸ‘Œ up a looooong time ago! πŸ™‚

                  In all seriousness, I’d like to know what the cc of a 3MB head is? Mine had to be reprofiled to get rid of piston ring explosion marks and I’m not sure if it was skimmed to the point that it kept the same compression ratio

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                  • S SpookDog

                    @declan
                    Sorry, didn’t mean to offend. Plus I gave πŸ‘ƒπŸ‘Œ up a looooong time ago! πŸ™‚

                    In all seriousness, I’d like to know what the cc of a 3MB head is? Mine had to be reprofiled to get rid of piston ring explosion marks and I’m not sure if it was skimmed to the point that it kept the same compression ratio

                    D Offline
                    D Offline
                    DTR+NSR
                    wrote on last edited by
                    #19

                    @SpookDog I measured one of my heads at 13cc, unfortunately can't remember which. The dome of the +1mm mitaka piston measures at 3.5cc though : p

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                    • S Offline
                      S Offline
                      SpookDog
                      wrote on last edited by
                      #20

                      Cheers bud, that’s something to work with. I’ve got a good 3bn, my reworked 3mb and another 3mb (that I forgot about till now) that is battle~scarred but otherwise original.

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