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  1. #1
    Yanksfan's Avatar
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    Bring Down RPM keep speed, L13 or what?

    Hi All,
    ok I got my ski running at a speed that I am content with for now until I get the 300 by the end of the year, however it spinning at 8600 spikes for 8620 at times, this was in salt water, speed is 77MPH. I can pitch the 15/20 back a few to get them to 8400 but I think I will loose some speed.

    I don't have retainers but don't want to take that expense if I will be changing the ski soon, will a L13 Cone be beneficial to me? I just need to drop 200 rpm's but will hate to loose the speed.

    This is what I currently have:
    4 DIY Rear Air
    CRT 8600 Reflash
    15/20 Prop
    SS Wear Ring
    That's all I got.

    Thanks in advance.


  2. #2
    Water4fire's Avatar
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    Yes a L13 will drop rpm. By itself about 60. Then add spacers from there. I would bet 5mm would do it.

  3. #3
    Site Admin Green Hulk's Avatar
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    The Lucky 13 cone would be perfect for you. It will drop some RPM and add speed all at the same time.

  4. #4
    ptscon's Avatar
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    Can he run L13 with the stock 83mm nozzle?

  5. #5
    Site Admin Green Hulk's Avatar
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    Quote Originally Posted by ptscon View Post
    Can he run L13 with the stock 83mm nozzle?
    He sure can, I have seen many do it, even on bone stock skis the L13 cone made and improvement over the stock cone.
    If RPM drops off too much, then he can open up his stock nozzle to 84-85mm and gain back some RPM.

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  7. #6
    Yanksfan's Avatar
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    Perfect, thanks all will report back after I get it installed.

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