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Performance mods 12 sx240

Discussion in 'Yamaha AR240, SX240, 242 Limited / S / X/ E-Series' started by Omg8, Apr 13, 2018.

  1. Omg8

    Omg8 New Member

    Messages:
    3
    Ratings:
    +2 / 0
    Boat Make:
    Yamaha
    Year:
    2012
    Boat Model:
    SX
    Boat Length:
    24
    Now I know these wont be race boats, but I have a race car and everything can be a little faster, been looking to see what parts are available out there and dont really see much of anything.
    Any intakes?
    Exhaust parts?
    Tuning?
    Impeller?
    Intake grates?
     

    Attached Files:

  2. Jgorm

    Jgorm Jet Boat Addict

    Messages:
    798
    Location:
    San Diego / Colorado river
    Ratings:
    +458 / 14
    Boat Make:
    Yamaha
    Year:
    2004
    Boat Model:
    AR
    Boat Length:
    23
    Ls swap it. Nothing else will make a difference.
     
    • Agree Agree x 1
  3. Omg8

    Omg8 New Member

    Messages:
    3
    Ratings:
    +2 / 0
    Boat Make:
    Yamaha
    Year:
    2012
    Boat Model:
    SX
    Boat Length:
    24
    Lol funny you say that. I have a 1500hp ls car.
     
    • Like Like x 1
    • Agree Agree x 1
  4. Omg8

    Omg8 New Member

    Messages:
    3
    Ratings:
    +2 / 0
    Boat Make:
    Yamaha
    Year:
    2012
    Boat Model:
    SX
    Boat Length:
    24
    Anyone try the magnum tuner deal?
     
  5. Jgorm

    Jgorm Jet Boat Addict

    Messages:
    798
    Location:
    San Diego / Colorado river
    Ratings:
    +458 / 14
    Boat Make:
    Yamaha
    Year:
    2004
    Boat Model:
    AR
    Boat Length:
    23
    Twin 1500hp ls, Berkeley jets, jetorator, etc.v who said these can't push 90mph!
     
  6. Bill D

    Bill D Jetboaters Captain

    Messages:
    1,790
    Location:
    Tuscaloosa, AL
    Ratings:
    +2,077 / 34
    Boat Make:
    Yamaha
    Year:
    2011
    Boat Model:
    Limited S
    Boat Length:
    24
  7. AJDerzie

    AJDerzie Active Member

    Messages:
    6
    Ratings:
    +7 / 0
    Boat Make:
    Yamaha
    Year:
    2011
    Boat Model:
    Limited S
    Boat Length:
    24
    If you're looking to increase top speed, realize that you only have one gear and an rpm redline.... Unless you significantly change the pitch of the impeller, you can only affect the acceleration but not the top speed.
     
  8. robert843

    robert843 Jetboaters Admiral

    Messages:
    4,095
    Location:
    Myrtle Beach, SC
    Ratings:
    +4,462 / 59
    Boat Make:
    Yamaha
    Year:
    2017
    Boat Model:
    AR
    Boat Length:
    24
    You can use a map tuner and ribbon delete to get a little more out of it but that probably just a 3-5 mph improvement.
     

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