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YS-CD-13/19 or YG-DF-14/20 <what impeller pitch?>

Discussion in 'Yamaha AR210, SX210, 212X & 212SS' started by not2fast, Oct 12, 2017 at 2:42 PM.

  1. not2fast

    not2fast New Member

    Messages:
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    Location:
    Twin Cities
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    Boat Make:
    Yamaha
    Year:
    2007
    Boat Model:
    AR
    Boat Length:
    21
    Thinking about putting new props on my 2007 AR210. Does anyone know the stock pitch or have used either of these? Oddly I already have one YS-CD-13/19 sitting in the box that I tried on a ski. I was pulling 8500rpm's with stock props so I wonder if it would be able to go with YS-DF-14/21's and gain a little top end.
     
  2. swatski

    swatski Jetboaters Admiral

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    @not2fast This is the best I could ever find. Looks like you would need 6S8-02 Port and 6S8-10 Strbd - see the pitch in the table (for OEM impellers).
    Hope it helps!
    [​IMG]

    --
     
    • Like Like x 1
  3. not2fast

    not2fast New Member

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    Looks like this is the one I need. looks like 1.6 degree difference on starboard vs port.

    [​IMG]
     
  4. not2fast

    not2fast New Member

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    Also was looking at this on the solas site.


    [​IMG]
     
  5. not2fast

    not2fast New Member

    Messages:
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    Location:
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    Year:
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    Looking yamaha stock pitch vs solas recommendation it almost seems like the YS-CD-13/22 might be the best choice. I actually have a pair of stock FZR props sitting my garage. Maybe I should just pitch them and see how they work.

    Order a pitch gauge. I will have to start researching how to pitch them. I should have done this a long time ago with all of the PWC I have owned over the last 4 years.
     
    Last edited: Oct 13, 2017 at 11:19 AM
  6. swatski

    swatski Jetboaters Admiral

    Messages:
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    I think a pitch gauge is kind of a waste of money, albeit not very expensive. At the end of the day, a ruler, a sharpie, and a flat surface is all you need - for testing your impellers while you re-pitch - as you can not directly compare the pitch of different models, the pitch means nothing. If you really want to get it right, it is always an iterative process: bend, test, repeat, LOL.
    I'm sure you have seen these:
    http://www.greenhulk.net/forums/showthread.php?t=2614&highlight=impeller+repitching
    http://www.greenhulk.net/forums/showthread.php?t=65227&highlight=impeller+repitching
    http://www.greenhulk.net/forums/showthread.php?t=69240&highlight=impeller+repitching

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  7. not2fast

    not2fast New Member

    Messages:
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    Location:
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    Year:
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    21
    Thanks, I have seen those. Picked up a $30 pitch gauge. I figured I should get the right tool for the job. Solas props are not known to have accurate pitching from the factory which didn't bother me on jetskis much if I got the performance I wanted. If I was really particular I would just send it to Dean to have him pitch it for his tunes. I am thinking I will end up getting Solas props in the end because when I have used them I can feel the difference.
     
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  8. swatski

    swatski Jetboaters Admiral

    Messages:
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    I'm watching!
    My understanding is that Solas can be a great replacement for MR-1 OEM impellers. The only issue is with some batches that were disintegrating - I think @dan144k had one. I've never had an MR-1 boat, yet!

    The 1.8 OEM impellers (different shaft) are very hard to beat though, as they have the longest blades.

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    • Informative Informative x 1
  9. Speedling

    Speedling Jetboaters Admiral

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    I have the solas 14/20 and empty it got me 52 mph from 48ish but now that i have added a tower, speakers, subs, etc etc i think the 13/19 would have been better. My oem were chewed up very badly
     
  10. not2fast

    not2fast New Member

    Messages:
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    Location:
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    Boat Make:
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    Year:
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    Boat Length:
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    This is my first time dealing with MR-1's so we will see.

    I have heard about the disintegrating Solas props. I have heard it is more common on 160mm props. Out of the 6 or more that I have bought, I have not had an issue.

    Usually, I would replace stock props because of cavitation on ski's and it would fix it and add a little on the top end. I would be happy if it added a little of both to my AR210.
     
  11. swatski

    swatski Jetboaters Admiral

    Messages:
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    Boat Length:
    24
    That is rare in 155 pumps, and think the batches that were bad have been identified: http://www.greenhulk.net/forums/showthread.php?t=250828&page=26

    Here is @dan144k's thread, good read, lol
    https://jetboaters.net/threads/sola...ad-spare-impeller-and-cordless-grinder.11226/

    --
     
  12. not2fast

    not2fast New Member

    Messages:
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    I would be interested in your props if you look to go to 13/19. I trade you 1 13/19 plus cash for a pair of your 14/20's I think the 14/20's with less RPM might be the right prop for MR-1 with 110hp.
     
  13. Speedling

    Speedling Jetboaters Admiral

    Messages:
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    I think 14/20 is too much prop for the 110 hp mr1. It's too much for my 160!
    The problem will be that each revolution will push the same amount of water (theoretically) so i think that the power still needs to be there to turn it. This is what torque is! The torque might be the same on the lower rpm of the 110 hp engine but i doubt it.
    The 160 mr1 has 1052 cc and the 110 has 998cc which doesn't seem like much but adds up for these small motors!
    I have been wrong befor but i would just not want you having too much impeller.
    Besides, i knew it was a bit much pitch for my boat but hoped i would somehow make more power to push it which never happened.
     
    • Agree Agree x 1
  14. not2fast

    not2fast New Member

    Messages:
    22
    Location:
    Twin Cities
    Ratings:
    +3 / 0
    Boat Make:
    Yamaha
    Year:
    2007
    Boat Model:
    AR
    Boat Length:
    21
    Actually 110hp are 1052cc like 160hp. The 140hp are 998cc. Solas recommends 13/20 for 110hp and 13/19 for 140hp.
     

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