Will the GEBE system handle this?

Discussion in 'Rack Mounted Engines' started by Torques, Feb 12, 2008.

  1. Torques

    Torques Guest

    Please tell me your opinion of using the Tanaka TC-47R with the Golden Eagle system. I would use the 13 tooth with it. The spokes on my Kustom Kruiser Roadster are 10 guage I believe. They are very thick. Are these motors really loud or are they comparable to a Robin Subarua EHO 35 at cruise. Thanks in advance for the help.
     

  2. kerf

    kerf Guest

    I don't know much but I'll share what I can.

    GEBE, don't know.

    47R, when I was looking into another motor, David Staton warned me that the 47R and the R460 were "headache loud". I bought the R460 anyway and he was right. I've managed to get it to an acceptable noise level and love the power.
     
  3. Torques

    Torques Guest

    Do you mean loud at full throttle acceleration and just cruising both? How did you quieten it down?
     
  4. kerf

    kerf Guest

  5. Torques

    Torques Guest

    What in the **** is a "Chung Yang"?
     
  6. kerf

    kerf Guest

    Go-Ped motor, Zenoah clone, 4.2 HP @ 11'000 RPM.
     
  7. Torques

    Torques Guest

    That must be fricking fast.
     
  8. kerf

    kerf Guest

    Calculated speed, with a 21.43 / 1 final drive is 40.1 @ 11,100 RPM although speedo was reading 45. Scary thing was just how fast it got there and it wasn't topping out when I got off the throttle. Probably would accelerate to destruction if I let it but I just run 30 and less, save the motor. Climbs hills that would choke the TLE43.
     
  9. Torques

    Torques Guest

    How can I figure out my theoretical speed using my Gebe system? I have a 13 tooth on the small gear and the standard gear ring on the back wheel.
     
  10. kerf

    kerf Guest

    =(((Engine RPM * (Engine Sprocket Dia./ Drive Ring Diameter))*(Tire Dia*3.1459))/1056)

    Sub values for written destinations, pop into Excel as written, bam.
     
    Last edited by a moderator: Feb 13, 2008
  11. Alaskavan

    Alaskavan Guest

  12. kawasaki999

    kawasaki999 Member

    I have a 47r and gebe 14 tooth and it is NOT! loud. The other motor is. I have the wheel gebe recomends 14 guage. Your 10 guage should be great. I do peddle to aroud 8 mph and ease into the gas!
     
  13. Torques

    Torques Guest

    Wow, very cool, it works. Would that little motor pull 260 lbs (total including bike and rider) that high on the rpm scale (11,000) on the level? I'm looking at the 47r which is 4.2 horse I believe.
     
  14. kawasaki999

    kawasaki999 Member

    Torques, I weigh 175 + the bike and motor around 230. I live in Florida, flat not many hills. The 13 tooth is good all around gear 4 that motor, I run a 14. The Tanaka 47r is 2.8 hp at 8,000 rpms, the r 460 is 4.2 at 11,000 but it is loud. I dont think the gebe kit will handle the r 460.
     
  15. Torques

    Torques Guest

    It's good to dream, I can't afford that now because of my situation but maybe I'll get that someday. I would believe the r 460 might be ok with the Gebe if you don't ride it hard.
     
  16. Torques

    Torques Guest

    What is the quality of those motors. I believe they are Chinese and from what I have heard and seen, the build quality is terrible. I'm not saying that about this brand because I don't know but the 80 cc motors are notoriously weak.
     
  17. kerf

    kerf Guest

    Twain, ISO 9001 factory. Go-Ped makes quality stuff and the switched from Zenoah Komatsu to Chung Yang a few years ago. I would be very careful about the R460 on a GEBE, it's a hot motor.
     
  18. Torques

    Torques Guest

    What's the worst that can happen? Explode the rear wheel?
     
  19. kerf

    kerf Guest

    Could be, most likely break the belt if you're running 10ga spokes. My Staton chain drive may be heavy and ugly but it's very strong. I believe I read somewhere that GEBE no longer recommends the Tanaka 40 but I really don't know.
     
  20. kerf

    kerf Guest

    By the way, you gotta love Al, yesterday it's 65 and sunny, now 29 with light snow. Carp!
     
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