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  • Yamato 331

    Any idea when this motor will be made available or when it will be sent to the APBA for approval??




  • #2
    It already is available and approved.

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    • #3
      I got one about 2 month's ago

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      • #4
        Y331 is already in the rule book

        https://apba.org/documents/131809787...l%20Manual.pdf
        Sean Byrne

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        • #5
          Thanks for the information. How does the 331 performance compare to previous models? Has anyone done testing with it?



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          • #6
            Yamato UK site says it has less hp (32 vice 33), intention to reduce accidents occurring during turns in Japan arena https://www.yamatoeurope.co.uk/history

            Also list some differences: https://www.yamatoeurope.co.uk/model-331

            Curious to see if same cooling issues as 321 had...

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            • #7
              Change out the tuner pipe to the 321/302 style and it will be identical
              Sean Byrne

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