Rotax Evo Update Micro Max

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    • January 13, 2015 at 8:32 am #40383
      Vincent Ciolino
      Participant

      I was curious if anyone has made the update if so, do you see an improvement in performance?

    • January 13, 2015 at 10:48 am #40388
      Christian Fox
      Participant

      I don’t know of anyone with the new parts yet, but the HP is up for every motor in Evo form. Biggest difference will be in Micro (lowest HP, biggest % gain). Micro is going from 6.8 nominal HP to 8.0 HP, an 18% increase. Micro is the only engine class that Rotax claims will have a performance gain (which is strange given Hp is up in all the evo motors). Hope that helps.

    • January 13, 2015 at 7:17 pm #40410
      Mark Parker
      Participant

      does the few hundred dollar update make them identical or does the new motor have new internals?

    • January 14, 2015 at 3:31 am #40418
      Christian Fox
      Participant

      Mark, that’s the big question. According to Rotax, the upgrade will make them equal. Internally, the piston is slightly lighter, the con rod has a new coating, and the crank bearing is slightly different. A couple of engine builders I’ve spoken too think a good, upgraded Micro will still be good relative to an Evo. I suspect a high $$, part-matched Micro franken-motor that kicks ass now will still kick ass when upgraded. The big question is the coil; you don’t get the new one in the Micro upgrade. The timing hasn’t changed, so it’s not a required upgrade, but Rotax claims the throttle response will be better.

    • January 19, 2015 at 7:31 pm #40701
      Clark Hadden
      Participant

      Hello, from friends in the Europe I heard it’s not any quicker… It’s slower…

       

      fyi!!!!

       

       

    • January 20, 2015 at 7:23 am #40731
      Christian Fox
      Participant

      Clark, that is interesting. Do you know if your friends were doing a before upgrade/after upgrade comparison with a specific Micro, or were they comparing 2 completely different motors (a new Evo Micro vs. an older Max). Because slight motor variation is so magnified in Micro, you really need to do a before/after with one motor.

    • January 20, 2015 at 7:04 pm #40800
      Mark Parker
      Participant

      I’d like to get a day with a micro pro at either track in the Carolinas.

    • January 21, 2015 at 12:35 pm #40837
      James McMahon
      Participant

      It depends on the packages you are comparing. Reports are that senior can be nip and tuck, but Micro like Christian said is another story.

      Austrailia and the UK have postponed introduction it until 2016 and I believe at least one US karting organization will follow suit.
      France are running Evo as a separate class it seems.

    • January 21, 2015 at 12:44 pm #40838
      James McMahon
      Participant

      healthy thread going over at karting1: http://www.karting1.co.uk/forum/viewtopic.php?t=17247&postdays=0&postorder=asc&start=0

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