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  1. #1
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    721 Phoenix performance

    Anyone know how the Phoenix 721 performs with mercury 250 4 stroke.

  2. Member
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    Feb 2007
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    Tomball, Texas
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    #2
    I bet like a scalded ape!

    My 2013 with an 8" manual plate and an old ProXS runs 73. I am hearing the new 4 strokes are amazing.
    2021 Phoenix 819 - Mercury 200 Pro XS - Ser No 2B779353
    Ultrex/Humminbird Helix 12 SI Mega/Helix 10 Mega DI/Mega 360
    Garmin 1022 with LVS34

  3. Member
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    Aug 2014
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    Anderson, South Carolina
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    #3
    I have had my 920 to 79 with a 250R. 721 and 920 are similar in performance I have read. Still 4in below pad. I have lithiums on the way so hope to dial it in soon

  4. Member
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    Jul 2017
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    Louisiana
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    #4
    I’m running a 2019 721 with the 250 fs, performance is great. Running mid to upper 70s on the right days, holeshot is really noticeable that boat is up on plain effortlessly. Love it so far . Everybody says they chime walk I’ve yet to experience that. Guess I just know how to drive a bass boat

  5. Member
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    May 2012
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    Somerset, Ky
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    #5
    My 2017 has sho- with a 180 lb partner- can do 76; by myself it will chine walk like hell above 71 -72

  6. Member crank68's Avatar
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    Mar 2011
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    Kenly, NC
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    #6
    Quote Originally Posted by HH45cal View Post
    My 2017 has sho- with a 180 lb partner- can do 76; by myself it will chine walk like hell above 71 -72
    Run a little ballast when your alone....you may could move some of your load around enough to help it.
    BULLET 20 XRD/250 Merc Sport XS
    www.ncboatguy.com

  7. Member
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    Feb 2014
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    Chicago, IL
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    #7
    I run a 721 with a 250 2 stroke, and my top end is 74-76 fully loaded. I bet you can get close to 80 with the right set up and the new 4 stroke.

    2022 21PHX

    Previous boats:
    2017 Phoenix 721 ProXP
    2000 Triton TR186

  8. Member
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    Jan 2011
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    DFW
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    #8
    This weekend I ran a 230lb partner and his load, my full gear, two full livewells, and 3/4 tank of gas, and I hit 74.5 with a 26p fury. But that was with the 2 stroke Pro Xs.
    2022 Phoenix 721 / 250 Mercury ProXs / MK Ultrex
    HB Helix 12 G4N / Garmin 106sv / Livescope

  9. Member
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    Mar 2017
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    Knoxville, TN
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    #9
    No different than a 721 with any other engine on it.

  10. Member
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    Jun 2014
    Location
    Troy , ny
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    #10
    I have about the same performance the fastest I have ran is 75 mph fully loaded with 2 guys and had more to go but she then got a little squarely on me and had to let off. Weather temp plays a big part in my boats performance and I run the stock Fury 26 with hydraulic jack plate. I also run faster with 2 guys in the boat meaning myself and another guy

  11. Member nikldac's Avatar
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    Aug 2008
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    so. IL
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    #11
    Quote Originally Posted by HH45cal View Post
    My 2017 has sho- with a 180 lb partner- can do 76; by myself it will chine walk like hell above 71 -72

    You have something out of whack. I'm running a 250 SHO on a 721. I've ran a mile at 73 mph and never touched the steering wheel until I had to turn to run up a creek. SHOs like to run high.
    If you're too low and you over trim it to gain speed; that can cause it. It you're way out of balance in your gear... that can cause some of it. Check your prop to pad height. I honestly don't remember what the average for the SHO should be and since I run a hydraulic jp, I adjust the height as needed.

  12. Member
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    Jun 2022
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    Marion , Louisiana
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    #12
    Sam378. What prop are you running? I'm in a 2020 721 and top speed is 70 @ 5700 ish rpms. 24 p fury ,trimmed out and jack plate set at 2.5 prop to pad

  13. Member
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    Apr 2010
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    Athens Ga.
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    #13
    Best performing boat I have ever owned.

  14. Member
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    May 2010
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    Athens
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    #14
    A 721 with two persons, live wells full, gear and a 1/2 tank gas is a 72ish mph boat give or take. I love the boat and owned one with a two stroke and other family has one with a 4 stroke. These boats with two people and a tournament load ride awesome, fish awesome, but will not run upper 70's.

  15. Member
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    Mar 2017
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    Knoxville, TN
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    #15
    Mine always ran 75-77 at blast off depending on time of year with 2, a full tank, and one livewell full. Only time it was low 70's tourney loaded was when it rained all day and the carpet was soaked.
    I run a 12" plate though and it does make a difference

  16. Member
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    Dec 2013
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    Lafayette, Louisiana
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    #16
    My 2022 is a lot slower than expected. 72, maybe 73 in winter with 25 SHO prop @ 5700rpm. I also have a worked Bravo FS that I thought would be a great summer prop, but only getting 69-70 loaded. @5900rpm. I do have dual graphs up front with 360 and AT contributing to the lack of speed, but I still thought she should hit 72 all day.
    2022 Phoenix 721
    250 Yamaha SHO

  17. Member
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    Mar 2014
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    NC
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    #17
    This thread was from 2018 fyi.

  18. Member
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    Apr 2014
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    SW, Ohio
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    #18
    Quote Originally Posted by HH45cal View Post
    My 2017 has sho- with a 180 lb partner- can do 76; by myself it will chine walk like hell above 71 -72
    fill up the port livewell some when solo my stratos ran really good that way solo
    2022 z519 cup 225 merc 4s ser # 3B210484. 2--hds12 live units. 2 poles, atlas plate, ghost, hamby's, active target, merc digital gauges
    2002 basscat pantera 3 (dad bought new) sold 8-2-22
    2000 stratos 20 ss (bought new) 200 hp Rude ficht great boat/motor sold 11-21
    pulled by a 2500HD Denali
    proud dad of an ARMY Captain
    MAGA
    ASE/GM Master tech before tools

  19. Member
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    Jun 2022
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    Marion , Louisiana
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    #19
    24p fury