Thread: water pressure

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  1. #1
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    water pressure

    2b478760 2018 pro 250 not sure if i asked before but what should my water pressure be at wot?? thanks Perry

  2. Member
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    #2
    15 Minimum. But 18 would be great & possibly 20 or more in a headwind. From my 250

  3. Member
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    #3
    My 150 four stroke has much higher pressure than my old 150 2 stroke. I see pressures around 30 when running at higher speeds. About 7/8 throttle!

  4. Mercury 3L/4 Stroke/Verado Moderator EuropeanAM's Avatar
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    #4
    Quote Originally Posted by NORRIS CRAFT 1 View Post
    15 Minimum. But 18 would be great & possibly 20 or more in a headwind. From my 250
    +1

    Prefer to see 18+ for safe measure in turns.


    Dual Mercury Master Technician- for Mercury Outboards, Mercruiser and Mercury Racing at European Marine in Greenville, SC.
    Still consider myself a "Marine Apprentice" after 47 years (learn something new every day).
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    #5
    18 plus on the 250 4s? Wot

  6. Mercury 3L/4 Stroke/Verado Moderator EuropeanAM's Avatar
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    #6
    Quote Originally Posted by ser68 View Post
    18 plus on the 250 4s? Wot
    Yes, that was the question.

    Quote Originally Posted by CamaroJockey in Post#1
    2b478760 2018 pro 250 not sure if i asked before but what should my water pressure be at wot??


    Dual Mercury Master Technician- for Mercury Outboards, Mercruiser and Mercury Racing at European Marine in Greenville, SC.
    Still consider myself a "Marine Apprentice" after 47 years (learn something new every day).
    Mercury Parts, Mercury Outboards, Smartcraft & Accessories, Injector Service, TDR Reeds- BBC Sponsor