Page 1 of 2 12 LastLast
Results 1 to 20 of 34

Thread: Best 650 prop

  1. #1
    X-H2O.com El Joker's Avatar
    Join Date
    Jul 2011
    Location
    La Porte, Indiana
    Posts
    1,164
    Thanks
    259
    Thanked 95 Times in 67 Posts

    Best 650 prop

    What is the best 650 prop? I got a 650 with a westcoast exhaust, dual 38's, a lightened flywheel.


    Ice and aspirin heals any wound 

  2. #2
    X-H2
    Join Date
    May 2011
    Location
    lake house
    Posts
    348
    Thanks
    0
    Thanked 1 Time in 1 Post
    Ive been riding my whole life and i havent found the best PROP yet
    But i do know the best impeller for 650
    U got two options

    If u dnt have enough $$ u can buy a used skat 9/17 or 15.5 for under 110

    But if u have deeo pockets run a c75 9/17 cut to fit 650pump
    Or gwt a stock sxr impeller and repitch to 9/17 and cut to fit 650pump (this setup will run u about 200-250)
    She likes it when i hit it sideways

  3. #3
    Super Hero, with a cape! Vumad's Avatar
    Join Date
    Jun 2007
    Location
    St. Pete, FL
    Posts
    4,079
    Thanks
    92
    Thanked 297 Times in 182 Posts
    I've been running a 10/18 with a stock (83mm) nozzle. It seemed to lack bottom end. I put on an AM nozzle (87mm) and gained some bottom end at the cost of a lot of top end. Crab did say 87mm would be too big.

    Crab and Shawn claim the best with a worked 750 motor is a 13/18 with a bored stock (85mm) nozzle.

    Impros suggested I run a 12/17.

    I have a 15, a 15.5 and a 9/17 I have yet to try.

    Group K's website makes some suggestions. They suggest either a 15.5 or a 9/17 with a stock nozzle.
    The Onyx G1
    My 1st Superjet
    Always build with the assistance of a professional from SkiShopRules.com

  4. #4
    X-H2O.com El Joker's Avatar
    Join Date
    Jul 2011
    Location
    La Porte, Indiana
    Posts
    1,164
    Thanks
    259
    Thanked 95 Times in 67 Posts
    I want bottom end. I'm going to put on a x2 trim with an 85mm nozzle. I have a guy that has a 16 and 17 skat for 85 which would be best?


    Ice and aspirin heals any wound 

  5. #5
    Super Hero, with a cape! Vumad's Avatar
    Join Date
    Jun 2007
    Location
    St. Pete, FL
    Posts
    4,079
    Thanks
    92
    Thanked 297 Times in 182 Posts
    If he's local, tell him you'll give $95 to try both, but only keep the one that works best for you. Couldn't hurt to ask.
    The Onyx G1
    My 1st Superjet
    Always build with the assistance of a professional from SkiShopRules.com

  6. #6
    X-H2O.com El Joker's Avatar
    Join Date
    Jul 2011
    Location
    La Porte, Indiana
    Posts
    1,164
    Thanks
    259
    Thanked 95 Times in 67 Posts
    I could ask but he isn't local I just got ahold of him through email and e sen me his parts list and they were on there. I could ask him and sign a form saying I would return one after I test it.


    Ice and aspirin heals any wound 

  7. #7
    X jdakrt's Avatar
    Join Date
    Sep 2006
    Location
    Central VA
    Posts
    289
    Thanks
    1
    Thanked 2 Times in 2 Posts
    I ran old skool 15, 15.5, 16 and 13/16 skats on my 650 setup and liked the 13/16 best. as stated above, the 9/17 c75 would be best on the 650. Off topic - save your money and get a 750. night and day difference, I cant believe I waited so long to do the swap. Not just saying that cuz I have a 750 setup fs.

  8. #8
    X-H2O.com kevbo's Avatar
    Join Date
    Sep 2007
    Location
    dfw
    Posts
    1,768
    Thanks
    0
    Thanked 97 Times in 91 Posts
    Quote Originally Posted by PowerRanger View Post
    I want bottom end. I'm going to put on a x2 trim with an 85mm nozzle. I have a guy that has a 16 and 17 skat for 85 which would be best?


    Ice and aspirin heals any wound 
    Anything over an old 15, 13-16, or 8-16 will kill low speed thrust. Solas 13-18s are also too much without taking some load out. Its much better to modify a modern 750 prop like an 11-16 concord.

  9. #9
    X-H2O.com El Joker's Avatar
    Join Date
    Jul 2011
    Location
    La Porte, Indiana
    Posts
    1,164
    Thanks
    259
    Thanked 95 Times in 67 Posts
    Quote Originally Posted by kevbo View Post
    Anything over an old 15, 13-16, or 8-16 will kill low speed thrust. Solas 13-18s are also too much without taking some load out. Its much better to modify a modern 750 prop like an 11-16 concord.
    So i should get a 11-16 concord and get it cut down I fit a 140mm pump?


    Ice and aspirin heals any wound 

  10. #10
    X-H2O.com kevbo's Avatar
    Join Date
    Sep 2007
    Location
    dfw
    Posts
    1,768
    Thanks
    0
    Thanked 97 Times in 91 Posts
    They are all 140mm diameter, 750s have longer splines and more foreward shaft spacing. A 750xi driveshaft will fit a 650sx and make it so the only mod needed is cutting the bottom to set back the prop. X2s will need both sides cut. The easiest way out is finding a 650 solas ke-sc-I 13-18 and getting it repitched.

  11. #11
    X-H2 smrbum's Avatar
    Join Date
    Sep 2008
    Location
    bradford
    Posts
    371
    Thanks
    15
    Thanked 4 Times in 4 Posts
    i have the set up you need for sale .9/17 hooker large hub with R&D pump stuffer,rad dudes spacer all installed in a pump for $500.just bolt in and go

  12. #12
    Lord of the Dance Mr Bojangles's Avatar
    Join Date
    Apr 2010
    Location
    Brevard County, Fl
    Posts
    664
    Thanks
    2
    Thanked 10 Times in 8 Posts
    I got a skat 15.5 I will let go cheap, but I run a small hub 13/19 on my 750 and it gets going good, but I need a big hub
    My WCF Build Thread........
    http://www.x-h2o.com/showthread.php?...l-hull-project
    עדיף למלוך בגיהנום מאשר לשרת בגן עדן

  13. #13
    X-H2O.com El Joker's Avatar
    Join Date
    Jul 2011
    Location
    La Porte, Indiana
    Posts
    1,164
    Thanks
    259
    Thanked 95 Times in 67 Posts
    Smr I would love to Have that but it would never happen on a high school kids budget


    Ice and aspirin heals any wound 

  14. #14
    650sx Snivilous's Avatar
    Join Date
    Jul 2011
    Location
    Colorado
    Posts
    702
    Thanks
    68
    Thanked 15 Times in 15 Posts
    I have a SOLAS 14-19 lol
    N2O Injection | -5" Plate | -6" Pole | -7" Hull | Engine Stuff

  15. #15
    X-H2O Austin's Avatar
    Join Date
    May 2011
    Location
    Loveland, Colorado
    Posts
    769
    Thanks
    10
    Thanked 3 Times in 3 Posts
    Im running a 15 skat strait edge. It gets my x2 going good in colorado!
    2010 Bob Gen 1 #6
    1996 Yamaha superjet - b-pipe, westcoast head, skat prop
    1990 Kawasaki x2 "ported 768cc" CUSTOM! http://www.x-h2o.com/showthread.php?...inter-x2-build

  16. #16
    650sx Snivilous's Avatar
    Join Date
    Jul 2011
    Location
    Colorado
    Posts
    702
    Thanks
    68
    Thanked 15 Times in 15 Posts
    Quote Originally Posted by Austin View Post
    Im running a 15 skat strait edge. It gets my x2 going good in colorado!
    Haha, I think my 14-19 is way too high of pitch for almost any 650 let alone like you said, at our elevation. No idea how it feels compared to others/stock, I sadly put it on at the same time as I put my Factory Pipe (or maybe it was the 44mm carb) on so I can't say how much difference it feels over stock. And it's the recommended for 650sx that Watercraftsuperstore told me lol. Hopefully my winter mods can make full use of it (which I think I need a high pitch prop anyhow for what I'll be doing).

    How does repitching work? Do they shave off part of it? But wouldn't that just change the pitch by a fraction of what it normally would be? Or do they heat it to be malleable and then bend it?
    N2O Injection | -5" Plate | -6" Pole | -7" Hull | Engine Stuff

  17. #17
    Super Hero, with a cape! Vumad's Avatar
    Join Date
    Jun 2007
    Location
    St. Pete, FL
    Posts
    4,079
    Thanks
    92
    Thanked 297 Times in 182 Posts
    Quote Originally Posted by Snivilous View Post
    Haha, I think my 14-19 is way too high of pitch for almost any 650 let alone like you said, at our elevation. No idea how it feels compared to others/stock, I sadly put it on at the same time as I put my Factory Pipe (or maybe it was the 44mm carb) on so I can't say how much difference it feels over stock. And it's the recommended for 650sx that Watercraftsuperstore told me lol. Hopefully my winter mods can make full use of it (which I think I need a high pitch prop anyhow for what I'll be doing).

    How does repitching work? Do they shave off part of it? But wouldn't that just change the pitch by a fraction of what it normally would be? Or do they heat it to be malleable and then bend it?
    You could try a larger nozzle diameter. I'll be happy to buy that useless prop from you. $25 shipped. =)
    The Onyx G1
    My 1st Superjet
    Always build with the assistance of a professional from SkiShopRules.com

  18. #18
    650sx Snivilous's Avatar
    Join Date
    Jul 2011
    Location
    Colorado
    Posts
    702
    Thanks
    68
    Thanked 15 Times in 15 Posts
    Quote Originally Posted by Vumad View Post
    You could try a larger nozzle diameter. I'll be happy to buy that useless prop from you. $25 shipped. =)
    Woah now, the things like brand new and I paid $200 for it lol.
    N2O Injection | -5" Plate | -6" Pole | -7" Hull | Engine Stuff

  19. #19
    Super Hero, with a cape! Vumad's Avatar
    Join Date
    Jun 2007
    Location
    St. Pete, FL
    Posts
    4,079
    Thanks
    92
    Thanked 297 Times in 182 Posts
    Quote Originally Posted by Snivilous View Post
    Woah now, the things like brand new and I paid $200 for it lol.
    I know. =) I am not interested in it which is why I suggested such a price. Right now I am running a 10/18 with a 87mm AM PJS nozzle. 87mm is too big, but maybe not with a prop like that. I intend to either run my 9/17 with a stock (83mm) nozzle or a 13/18 SXR prop with a bored stock (85mm) nozzle.
    The Onyx G1
    My 1st Superjet
    Always build with the assistance of a professional from SkiShopRules.com

  20. #20
    650sx Snivilous's Avatar
    Join Date
    Jul 2011
    Location
    Colorado
    Posts
    702
    Thanks
    68
    Thanked 15 Times in 15 Posts
    Would having "high performance" mods mean that boring the nozzle wouldn't help? I want as much punch as I can get (bottom end) and already have a Factory Pipe, 44 Mikuni, High Comp Head, Lightened flywheel, would boring that help still?

    I feel like 86mm bore would be good for a 14-19.
    N2O Injection | -5" Plate | -6" Pole | -7" Hull | Engine Stuff

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •