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  1. #1
    Join Date
    Feb 2020
    Posts
    1

    Default Supra SL400 at 4,000 feet elevation

    Hey all, I am looking at a used 2019 Supra SL 400. The boat is currently at sea level but I will be bringing it to Montana and our lake is 4,000 feet.
    Any concerns about lack of power with the 400 motor for surfing loaded ballast and boat full of people at this elevation?
    Any suggestions on high altitude prop?
    Thanks for your help

  2. #2
    Join Date
    Aug 2020
    Posts
    1

    Default

    I have the same question, also in MT.

  3. #3
    Join Date
    Apr 2018
    Posts
    150

    Default

    Quote Originally Posted by sloane View Post
    I have the same question, also in MT.
    In 2019, Supra started with a 1.5 ratio transmission but switched to a 1.76 ratio.

    If it has a 1.76 I would say no problem if you prop it correctly.

    I would say a 1.5 even propped correctly would surf fine, but might struggle with heavy ballast wakeboarding.


    Sent from my iPhone using Tapatalk

  4. #4
    Join Date
    Jun 2012
    Location
    Knoxville TN
    Posts
    1,415

    Default

    Yep, the 19s were a mid year switch. So ask what the boat has.

    A 450 with the good prop would work great out there.

    Sent from my P00I using Tapatalk
    2018 Supra SL400

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