K&B 11cc to Brushless Conversion...is it possible?

Collapse
X
 
  • Time
  • Show
Clear All
new posts
  • tmartin3
    Junior Member
    • Aug 2011
    • 1

    #1

    K&B 11cc to Brushless Conversion...is it possible?

    I aquired an older tunnel hull taht had a K&B 11cc outboard engine on it. I didn't have any info on it other than the fact it was never ran by my buddy's dad so he said to take it and have fun. I fired it up the first time and locked up the motor and broke the piston rod. I'd like to do a brushless conversion on it; however all I have seen is info on the 3.5 cc and 7.5cc. Is it possible with the 11cc if so what type of electric setup should i be looking at? Thanks guys!
  • magnum500sw
    Member
    • Jan 2009
    • 97

    #2
    i`m not too sure on this but i thought the 7.5 and the 11 are the same , minus the power head of course . so if that is true then i`m sure you can.

    Comment

    • HOTWATER
      Fast Electric Addict!
      • Nov 2008
      • 2323

      #3
      The 7.5 O/B uses #51-8701 lower halves, the 11 O/B uses #51-6701 lower halves. 11 cc, 13.3 and 16.4 share the same lower halves.

      I do know that the 7.5 and 11's share the same prop shaft assembly and flex shaft.
      Last edited by HOTWATER; 08-27-2011, 08:26 AM.
      "Will race for cookies!"
      IMPBA D12
      My Gallery: http://forums.offshoreelectrics.com/album.php?u=1738

      Comment

      • siberianhusky
        Fast Electric Addict!
        • Dec 2009
        • 2187

        #4
        I think hyperformance has a conversion kit and all the spare parts for the 7.5/11cc K&B lower units. I know for sure they do the 7.5cc one I've never looked into the bigger ones but I seem to remember something about 11cc.
        I'll be buying the 3.5 kit soon for a conversion
        If my boats upside down then who owns the one I thought I was driving the last two laps?

        Comment

        • magnum500sw
          Member
          • Jan 2009
          • 97

          #5
          Originally posted by HOTWATER
          The 7.5 O/B uses #51-8701 lower halves, the 11 O/B uses #51-6701 lower halves. 11 cc, 13.3 and 16.4 share the same lower halves.

          I do know that the 7.5 and 11's share the same prop shaft assembly and flex shaft.
          That's what it was the 60& 80 are the same

          Comment

          • HTVboats
            Senior Member
            • Jun 2011
            • 803

            #6
            The 7.5 and larger K&B lowers are the same other than mounting holes drilled in the top base plate. I have driled and tapped many to fit the 7.5 bolt pattern which is what you may need to do to use the Hyperformance 7.5 FE mount. Go with a 4082 or 1521 size motor with whatever KV and battery selection you want. A 1200-1500 KV on 6s should power a larger size tunnel easily. Bigger the boat go with lower KV's

            Mic Halbrehder
            IMPBA 8656
            NAMBA 1414

            Comment

            Working...