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  1. #1
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    Unexpectedly hit 90.4 today with the 28 Promax after getting GPS to MM finally..

    I finally got the Solix to play nice with the MM... went out testing it... made a few runs..... i saw over 90 on the bird but didn't see hiw much... low and behold .. it works!

    IMG_20171111_40225.jpg

  2. Member River Rocket's Avatar
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    #2
    Way to go.
    Allison XB21 2+2
    Mercury 300R




  3. Member
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    Feb 2006
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    Elephant Butte, NM 87935
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    #3
    Congrats, that is a cool feature being able to link the graph to the monitor. I have found that sometimes there is a slight difference like .02 mph diff.

  4. Member
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    #4
    Quote Originally Posted by Strokerdean View Post
    Congrats, that is a cool feature being able to link the graph to the monitor. I have found that sometimes there is a slight difference like .02 mph diff.
    Hopefully on the high side Dean

  5. Member
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    kokomo
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    #5
    How did you get it to work? I can get some of my mm info on my solix but havent been able to get any info to my mm.

  6. Member
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    #6
    Nevermind just read it on the hb board, good info thanks

  7. Member
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    #7
    Quote Originally Posted by basser38 View Post
    Nevermind just read it on the hb board, good info thanks
    Hope it works out!

  8. BBC SPONSOR
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    #8
    Fastbass Marine LLC
    We specialize in NEW and USED ALLISON BOATS, Blazer Boats, Platinum Mercury Marine Repower Center, AquaTraction Flooring, and custom marine electronic installations on beautiful Kentucky and Barkley Lakes.

    2022 Allison XB-21 BasSport Pro Elite
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    2012 Bullet 21ss
    2005 Mercury 300X

    https://youtu.be/FOnAGNWOgZ0

  9. Member
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    #9
    Awesome
    2024 Xpress X21 / Yamaha 250 SHO
    2022 Allison XB-21 BasSport Pro Elite / 2022 Mercury 300R (Sold)

  10. Member
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    #10
    What do you run for a lower unit gear?
    Last edited by hooken203; 11-13-2017 at 12:36 PM. Reason: Should learn how to spell and proof read.

  11. Member
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    #11
    1.75 sporty

  12. Member River Rocket's Avatar
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    #12
    Seems like 1.62 numbers. Is your pitch right?
    Allison XB21 2+2
    Mercury 300R




  13. Member fishnfireman's Avatar
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    #13


    Is that prop for sale??

  14. Member
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    Aug 2006
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    #14
    Tim, Lee and i were discussing this on FB... here is Lee's response lol

    Here's lee's comment..

    "You have to calculate the 28 as a 29 since it has an inch of cup just like all modern props. It comes up to 5-5.5% slip which is still low but possible. Of course the prop could have a little more bite added in on top of the 28p also. It is a 1.75 gear ratio."

    I had Robbie B&B the prop earlier in the year..

    The boat is mostly empty but had mostly a full tank of gas.
    Ultrex is installed.
    3 group 31 AGM's

    As i am relatively green i can't explain it much.... I do know that this is my experience lol
    I have maybe 15 hours behind the wheel.... and have gone by feel mostly than anything else in my journey...

    I almost let Nathan borrow this prop last week but the schedules didn't quite work out..

    I cannot explain much more really! Maybe it's a magic 28 Promax lol

  15. Member
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    #15
    Like i said to Tim lol. I feel like the guy in the movie "My Cousin Vinny" who had the Magic Grits that cooked faster lol

  16. Member
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    #16
    Robbie must have added a TON of pitch to it. My 28 was 3.5 mph slower at 200 more rpm. It runs very similar to how 30p run on me and jays boat

  17. Member
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    #17
    Maybe the Prosport really is faster?

  18. Member
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    #18
    I will get the 30 on at some point.. But i am enjoying the 28 now... i absolutely love it when i punch it while going 60 - 65... it seems like you're instantly doing 85 as it throws you back....

  19. Member
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    #19
    Easy enough to put the 30 on the next time of you run the same speed ou know a shit ton of pitch was added to the 28. Of it runs 94/95 you know you have 1.62s

  20. Member
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    #20
    Here is some more food for thought..

    This is the same prop that Lee piloted me and my Dad to 87.2.... That's probably 720 pounds of people in an unbalanced boat... So this seems realistic as well..

    maybe i'll bring this prop to Robbie to measure up in January...

    Don't know revs on that run...

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