prop on my outboard
+ Reply to Thread
Page 1 of 2 1 2 LastLast
Results 1 to 14 of 17

Thread:
prop on my outboard

  1. #1
    Mesa AZ hallettss's Avatar
    Join Date
    Mar 2008
    Posts
    439

    Default prop on my outboard

    I have a daytona with a 250 johnson with a 15x21 hills prop and the boat only spins 5100 rpm and the boat runs about 50mph . I know it will run faster what prop should i go to . im told this motor should spin 8000 rpm . what prop would be good

  2. Remove Advertisements
    PerformanceBoats.com
    Advertisements
     

  3. #2
    Banned
    Join Date
    Dec 2007
    Location
    In a house, on a street, in a city, in Arizona.
    Posts
    4,599

    Default

    Give Kevin a call up at R&R Prop Shop in Las Vegas...

    http://www.randrpropshop.com/

    Contact us today!
    702-564-7502

  4. #3
    Senior Member STV_Keith's Avatar
    Join Date
    Dec 2007
    Location
    Lost Wages, NV
    Posts
    2,145

    Default

    Depending on the year of the motor, it might go as high as 6700, but not 8000. Definitely have too much prop right now if you're only at 5100rpm. Probably too much diameter too. I'd be looking at a 14.5" x something. I'd think your boat should pull a 26 without problem.

    As Jordy said, call Kevin. He'll steer ya right.
    Keith-


  5. Remove Advertisements
    PerformanceBoats.com
    Advertisements
     

  6. #4
    two strokes is enough
    Join Date
    Oct 2008
    Location
    Yuma, Az
    Posts
    2,042

    Default

    Quote Originally Posted by STV_Keith View Post
    Depending on the year of the motor, it might go as high as 6700, but not 8000. Definitely have too much prop right now if you're only at 5100rpm. Probably too much diameter too. I'd be looking at a 14.5" x something. I'd think your boat should pull a 26 without problem.

    As Jordy said, call Kevin. He'll steer ya right.

    yah he could run a 26 but its a through hub exhaust that will make it grab alot more and not let you spin that motor quite as fast. like keith said try and find a 14.5X 20 or 21 but also give kevin a call hes a great guy and very knowledgable

  7. #5
    Mesa AZ hallettss's Avatar
    Join Date
    Mar 2008
    Posts
    439

    Default

    how fast should this boat run with this motor

  8. #6
    Senior Member STV_Keith's Avatar
    Join Date
    Dec 2007
    Location
    Lost Wages, NV
    Posts
    2,145

    Default

    Again, depends on what motor you have exactly. What year 250 is it?
    Keith-


  9. #7
    Mesa AZ hallettss's Avatar
    Join Date
    Mar 2008
    Posts
    439

    Default

    like 81 to 85

  10. #8

    Join Date
    Dec 2007
    Posts
    18

    Default

    Ron hills props are no where close to what he says they are. I have had some experience with them and ever could get any of them to run like he says they should. I would look for a 14.5 X 24-26 chopper II. I would think with a 26 you should be running close to 80 at WOT.

  11. #9

    Join Date
    Dec 2007
    Posts
    18

    Default

    do you know the model number? I can tell you the year from that.

  12. #10
    Mesa AZ hallettss's Avatar
    Join Date
    Mar 2008
    Posts
    439

    Default

    i will post it later

  13. #11
    Senior Member STV_Keith's Avatar
    Join Date
    Dec 2007
    Location
    Lost Wages, NV
    Posts
    2,145

    Default

    I'm guessing that's a 235 given the year. IIRC, you want to turn those around 5800-6000, so you're a bit off the mark. Again, call Kevin. He knows the motor/rpm range and the props.
    Keith-


  14. #12
    Member Sunburnt's Avatar
    Join Date
    Jan 2009
    Location
    Mesa AZ.
    Posts
    30

    Default Saguaro on Sunday AM

    Hallettss,

    Dick and I will be at Saguaro early Sunday morning for a couple of hours. usually 7 - 10sh. water permitting, it'll be an all Merc day for us. We'll be running my PowerCat and the blue Hydro, it needs really good water or it goes back on the trailer.

    If you'd like, your more than welcome try one of my 24" choppers, I run twins. It would atleast let you know if you can spin it and see if the boat likes it, they are pretty easy to find and affordable. You should in my IMO be able to spin that Hill prop faster, perhaps it was suppose to be stamped 15 X 27?

    We've got a buddy with a similar hull to the daytona with a 200 OMC, spins a 24 chopper to 6200.

    If your motor can't do it then we suspect there's something wrong, that motor should make plenty enough power. Have you checked the plugs or compression?

    Anyways let me know if your interested, like I said your more than welcome to try it, if that's a little to early we'd be willing to wait around a bit if we know your coming..

    Best regards,
    Jeff

    Cave, you gonna be up there Sunday AM?
    Last edited by Sunburnt; 03-27-2009 at 01:17 PM.
    A member of Dicksmarine Mesa AZ. "The land of Misfit Toys"
    http://www.powercatboat.com/video/video.html

    My powercat restoration pages
    http://www.powercatboat.com/Group/JBowman/JBowman.html

  15. #13
    Mesa AZ hallettss's Avatar
    Join Date
    Mar 2008
    Posts
    439

    Default

    That would be great if i could try it i will be there around 8:30 . motor runs good dont think there is a motor prob .I will check the comp in the am what should it be.

  16. #14
    Member Sunburnt's Avatar
    Join Date
    Jan 2009
    Location
    Mesa AZ.
    Posts
    30

    Default

    Sounds like a plan,

    I honestly don't know what the compression should be, I know the OMC's tend to be lower than the Merc's, (low 100's I believe, we don't run any V6's, to new) Can you find a model or SN# anywhere? There should be an external tag somewhere on or around the clamp bracket.

    I know a guy that probably has a manual, I can try to find out. Perhaps STV Keith or Greg Moss would know. Guy's you out there?

    Jeff
    Last edited by Sunburnt; 03-27-2009 at 07:21 PM.

+ Reply to Thread
Page 1 of 2 1 2 LastLast

Quick Reply Quick Reply

Register Now

Please enter the name by which you would like to log-in and be known on this site.

Please enter a password for your user account. Note that passwords are case-sensitive.

Please enter a valid email address for yourself.

Please select your insurance company (Optional)

Log-in

Tags for this Thread

Digg This Thread

Posting Permissions

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

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95