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Thread: ESE's works engine tuner

  1. #36406
    Join Date
    11th November 2011 - 12:15
    Bike
    93 kx500
    Location
    Aus
    Posts
    42
    BRC is doing a 600 parallel twin project using the CBR600 gearbox.
    They must be pretty confident the gearbox will handle the extra 2 stroke loads to be so far along with the project?
    Hopefully their new cylinders suits a ktm base gasket mounting..

    You may have to change primary drive ratio to clear the crank due to the 4 strokes having a tiny stroke?
    This may suit your lower rpms anyway?

  2. #36407
    Join Date
    24th April 2016 - 19:07
    Bike
    2001 zx9
    Location
    bop
    Posts
    89
    Changing the primary drive to a higher ratio (speeding up the gearbox) is a good way to lower the gearbox loads up to a point when speeds start getting excessive . too high and selecting first from neutral becomes risky and the fast spinning parts ad excessive flywheel effect. Engineering and compromises ...

  3. #36408
    Join Date
    20th January 2010 - 14:41
    Bike
    husaberg
    Location
    The Wild Wild West
    Posts
    10,991
    Ducati Gearbox's are pretty inexpensive secondhand made for twins so are reasonable robost and narrow and have big clutch's.
    from what was said in the 90's by cramp though they have odd tooth profiles so you will need to use their own primary or make your own clutch.
    I don't ever recall anyone having much trouble with the gearbox's
    Quote Originally Posted by Katman View Post
    I reminder distinctly .




    Kinky is using a feather. Perverted is using the whole chicken

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