1. Welcome to Jetboaters.net!

    We are delighted you have found your way to the best Jet Boaters Forum on the internet! Please consider Signing Up so that you can enjoy all the features and offers on the forum. We have members with boats from all the major manufacturers including Yamaha, Seadoo, Scarab and Chaparral. We don't email you SPAM, and the site is totally non-commercial. So what's to lose? IT IS FREE!

    Membership allows you to ask questions (no matter how mundane), meet up with other jet boaters, see full images (not just thumbnails), browse the member map and qualifies you for members only discounts offered by vendors who run specials for our members only! (It also gets rid of this banner!)

    free hit counter
  2. Want to buy your boat a Labor Day gift beacuse it works so hard to keep you happy? How about some Cobra Jet Steering? Jeff at CobraSteering has a sale on a variety of steering system combos for Yamaha jet boats and special pricing for the 4 tec steering for forum members

    Click Here for Deep Discounts on Cobra Jet Steering while it lasts!!!!!!

    You can dismiss this notice (if you are a member) by clicking the "X" in the upper right>>>>>>>>>

    Dismiss Notice
  3. Reminder of the Seadeck group buy through JetBoatPilot.....you only have Until SEPTEMBER 30th to get in on this group buy - which HAS ALREADY reached the 30% discount point!

    So if you are looking to replace that old worn or stinky carpeting and get an awesome new look for your boat, or perhaps your stock swim platform is crumbling and leaving black crap on you and your guests when you sit on it.....look no further! Don't miss this opportunity as this only happens once a year!  

    Thank you Will @jetboatpilot for offering this exclusively to JETBOATERS.net members!

    (You can click the X to the right to dismiss this notice)

    Dismiss Notice

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:
    4
    Ratings:
    +3 / 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:
    938
    Location:
    San Diego / Colorado river
    Ratings:
    +590 / 15
    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:
    4
    Ratings:
    +3 / 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:
    4
    Ratings:
    +3 / 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:
    938
    Location:
    San Diego / Colorado river
    Ratings:
    +590 / 15
    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:
    +2,083 / 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:
    4,305
    Location:
    Myrtle Beach, SC
    Ratings:
    +4,758 / 66
    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.
     

Share This Page