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Thread: Blow out ring

  1. #1
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    Blow out ring

    Just have to ask, what is it and where does it go?? and what does it look like.

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    Lower unit behind prop , bout size of the case , kinda extends back of case which would allow more water to prop instead air
    This is pretty much the jist of it. Someone prob has better explanation tho , o and. most blow out just above 80 with certain lowers, prop,bote combo and the ring helps.prop hold water. sry no pic

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    Quote Originally Posted by Merc 2.5 View Post
    Lower unit behind prop , bout size of the case , kinda extends back of case which would allow more water to prop instead air
    This is pretty much the jist of it. Someone prob has better explanation tho , o and. most blow out just above 80 with certain lowers, prop,bote combo and the ring helps.prop hold water. sry no pic
    Does it matter 3 bld or 4? i get the idea now, thanks. im right at 80, with a passenger on a perfect day. never alone ''yet''.

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    4 blade usually has better bite I've heard more cle havin blow out than anything else , except stock lower with no low water pick up

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    If you install a bolt on blowout ring you will have to run small hub props, or over hub props. Merc Choppers will need to have weed cutters removed. Generally won't see much gain until 95+mph. Newer cases have it cast into the housing and does not effect the fit of large hub props.

    Dave
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    RIP Stu
    "So many idiots, so few bullets"

  8. #8
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    You can also get clip on blow out rings, they are mainly used for over hub props for the holeshot..
    some props just dont bite fast enough and can be a pain on the holeshot with a over hub prop.
    the blow out ring can help in this situation big time

    this is a plastic one that just clips on.
    Attached Thumbnails Attached Thumbnails Blow out ring 1xxxb.jpg  

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    Quote Originally Posted by phillnjack View Post
    You can also get clip on blow out rings, they are mainly used for over hub props for the holeshot..
    some props just dont bite fast enough and can be a pain on the holeshot with a over hub prop.
    the blow out ring can help in this situation big time

    this is a plastic one that just clips on.
    NOW, thats slick, where can i get one? have stock 200 l/u case

  10. #10
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    I think they are omc/brp things.but you could easy get a metal one (alloy or stainless) made up that simply fits in and
    has 2 screws from the outside to make sure it dont come off. the ring being held I think is one that racer on here was selling ( might be wrong)
    but it give the idea.
    Attached Thumbnails Attached Thumbnails imagesIOPESZDZ.jpg   IMG_20170525_144349.jpg  
    Last edited by phillnjack; 02-12-2020 at 08:13 PM.

  11. #11
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    Quote Originally Posted by KIRCHNER View Post
    NOW, thats slick, where can i get one? have stock 200 l/u case
    https://www.crowleymarine.com/parts/394199.cfm?q=45676T

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