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Thread: Props

  1. #31

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    If you don't care about going over 25 mph, you will like the 15x12 prop, we do. It was a worthwhile investment, but I had the stock prop on 15x14.5 or something like that, it struggled with anything over stock ballast.
    2016 Mojo surf edition
    1100lbs rear w/ 475lbs piggyback mid/ center 700lbs/ 500lbs IBS/ 600 lbs lead
    ACME 2315

  2. #32
    Join Date
    Aug 2011
    Location
    Commerce Lake, MI
    Posts
    1,857

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    If you get a 15x12 with a good amount of cup it wonít take much away from the top end. The 2315 is a good candidate.


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    2017 Moomba Craz

  3. #33
    Join Date
    Apr 2012
    Location
    Wake Forest, NC
    Posts
    592

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    Thank you guys for the feedback. My fuel consumption is terrible currently so I figure itíll pay for itself over the long term. Thanks again!
    2018 Murder Max
    2008 Outback V-Bought new; sold in 2018

  4. #34
    Join Date
    Aug 2011
    Location
    Commerce Lake, MI
    Posts
    1,857

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    Yeah once you hit 4000rpms, itís guzzling. My buddies Malibu does 4200 and itís unbelievable how much gas it uses. The wedge make a great wave but the engine works itís balls of against it and the bow rise is insane.


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    2017 Moomba Craz

  5. #35
    Join Date
    May 2018
    Posts
    1,258

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    My SA 400 has a 15x12.5 and runs 38 mph WOT

    Havenít found its limit yet surfing.

    Runs 3500-3600 surfing 11mph


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    2018 Supra SA 400
    Michigan

  6. #36
    Join Date
    Mar 2003
    Location
    s.e. washington state
    Posts
    3,081

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    Quote Originally Posted by larry_arizona View Post
    My SA 400 has a 15x12.5 and runs 38 mph WOT

    Haven’t found its limit yet surfing.

    Runs 3500-3600 surfing 11mph


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    You have your boat set nice. 38 isn't that much slower than the DDs.
    1998 Mobius
    310 HP PCM
    SOLD

  7. #37
    Join Date
    Apr 2012
    Location
    Wake Forest, NC
    Posts
    592

    Default

    Iím going to call acme next week and see what they recommend, first I need to verify that I do indeed have the OJ945. I ordered the boat with it but havenít actually verified yet.

    Iíll report back what they recommend for my setup.
    2018 Murder Max
    2008 Outback V-Bought new; sold in 2018

  8. #38
    Join Date
    May 2018
    Posts
    1,258

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    Today ran full 3500 stock ballast plus 3 crew (650#) plus 500# lead wake, plus full 65 gallon fuel load

    3600-3700 rpm surfing at 11mph.




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    2018 Supra SA 400
    Michigan

  9. #39
    Join Date
    May 2018
    Posts
    1,258

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    The one thing that can really effect engine output is density altitude aka DA.

    Your effective altitude can vary thousands of feet each day.


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    2018 Supra SA 400
    Michigan

  10. #40
    Join Date
    May 2018
    Posts
    1,258

    Default

    Quote Originally Posted by larry_arizona View Post
    The one thing that can really effect engine output is density altitude aka DA.

    Your effective altitude can vary thousands of feet each day.


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    For example




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    2018 Supra SA 400
    Michigan

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