Difference between IMPBA and NAMBA sport gas class

Discussion in 'Gas Boats Forum' started by davetheacguy, May 13, 2019.

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  1. May 13, 2019 #1

    davetheacguy

    davetheacguy

    davetheacguy

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    I've been racing since 1979, I've been away from the Hobby since 1997. I've started running and racing again. I like the gas sport class, can one hull be raced in both IMPBA and Namba ? If Not Why ! Thanks !
     
  2. May 14, 2019 #2

    Lay26

    Lay26

    Lay26

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    it only works one way ....if you build a namba legal G1 sport as per namba rules you could go to any IMPBA event and run that same boat with no changes in LSG 27 and LSG 36 sport hydro but you cannot run a IMPBA legal LSG 27 or 36 in G1 sport hydro as the motor displacement makes them illegal
     
  3. May 15, 2019 #3

    LohringMiller

    LohringMiller

    LohringMiller

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    Also the IMPBA rules allow any engine within the displacement limits. The NAMBA G classeslimit modifications and require industrial style engines with one piece cylinders. The IMPBA rules are similar to the NAMBA GX classes except for displacement limits.

    Lohring Miller
     

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