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  1. #1
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    2004 TR 21X Repower

    I am thinking of upgrading from my 2004 225 Optimax to a 2015 250 Pro XS. Even though increased mph is not really an objective of mine, I am wondering what the expected, if any, speed increase might be? Any thoughts?
    2004 Triton TR21X * 2021 Mercury 250 4 stroke

  2. Member
    Join Date
    Jun 2004
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    Knoxville TN
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    #2
    My guess will be 5-7 MPH. Seat of the pants feel at take off will put a BIG smile on your face. Will be a nice upgrade.

  3. Member
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    Jun 2014
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    Albany ga
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    #3
    I put a new 250 4s on my 04' 21x back in January
    Had a 250efi
    I have 51 hrs on it now
    I love it, great holeshot,mid range,and top end....finally getting it propped right, running 76-77 mph.

  4. Member
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    Mar 2008
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    Buchanan TN
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    #4
    4stroke

  5. Member
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    Jul 2004
    Location
    Penn PA
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    15,104
    #5
    Quote Originally Posted by nowakezone View Post
    I put a new 250 4s on my 04' 21x back in January
    Had a 250efi
    I have 51 hrs on it now
    I love it, great holeshot,mid range,and top end....finally getting it propped right, running 76-77 mph.
    250EFI was faster than the 250 four stroke correct?



  6. Member
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    Jun 2014
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    Albany ga
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    #6
    Quote Originally Posted by Savage View Post
    250EFI was faster than the 250 four stroke correct?
    No sir, EFI would run 74-75 mph, tournament load 69-71
    Today, with 250 4s, tournament loaded, livewells full, 73.5 mph

  7. Member
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    Jul 2004
    Location
    Penn PA
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    #7
    EFI must have been tired......Most powerful Mercury 250 made.