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  1. #1

    15/19 3 Blade at 8100?

    Who has tried running a 15/19 3 Blade with the stock ECU?

    What did you think, numbers would be great?


  2. #2
    speedskixp's Avatar
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    I have a 15/19 3 blade on my ski and love it. It has a great holeshot and acceleration is awesome. My ski runs 75.5 in 90 deg air and 85 deg water temp @8150. I have just purchased a reduction nozzle and plan on trying the 82mm to get my rpms to 8100.

  3. #3
    JFizzleJR's Avatar
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    I lost a solid 2+ mph with the 15/19 at 8100 over the 15/20. I think the average is a 1.5-2mph loss between the two on the stock ECU.

  4. #4
    But is the acceleration that much better?

    I will have two setups. One with my 15/20 and one with the 15/19.

    I use the 15/19 for giving rides mostly and just messing around. Was just looking for more accel!

  5. #5
    Ride Hard! aha's Avatar
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    I put a 15/22 on my ski last weekend and there is a noticable diffrence in acceleration... not off the line but say from 1/3 throttle all the way up. Also you will lose some mph with the 15/19 on the top end.

  6. #6
    speedskixp's Avatar
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    Quote Originally Posted by JFizzleJR View Post
    I lost a solid 2+ mph with the 15/19 at 8100 over the 15/20. I think the average is a 1.5-2mph loss between the two on the stock ECU.
    What was the rpm difference between the 15/20 and the 15/19 3 blade?

  7. #7
    JFizzleJR's Avatar
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    None. Perfect 8100. I could tell the acceleration was better, but it wasn't enough for me personally to give up the 2 mph.

  8. #8
    Do Work Son 05RXPnoob's Avatar
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    Quote Originally Posted by JFizzleJR View Post
    None. Perfect 8100. I could tell the acceleration was better, but it wasn't enough for me personally to give up the 2 mph.

    Same here, spinning both a 15/19(untouched) 3blader and 15/20(tweaked) @ 8100RPM. Top-end is about 2 mph better with the 15/20, acceleration isn't a huge difference between the two.

    Jay

  9. #9
    Fast & Loud meeper's Avatar
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    i had mine untouched with stock ecu running 77.9, 81mm ring

  10. #10
    Moderator Snoman's Avatar
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    Quote Originally Posted by meeper View Post
    i had mine untouched with stock ecu running 77.9, 81mm ring
    Same here.I am running a average of 77-78 with a best of 79

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