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  1. #1

    Join Date
    Nov 2020
    Florida St. Pete

    Why use a large 50mm POV (pop-off valve) instead of ~30mm?

    I think on a PWC a 50mm pop-off valve is way over kill for a small cubic inch engine a 30mm would be plenty.

    A 50mm is a common size to see on a full size car engine.

    The question is way is the Tial 50mm pushed so hard and why is no one talking about using a smaller pop-off valve?
    Last edited by K447; 11-27-2020 at 10:08 PM.

  2. #2
    Might be the same logic as putting racing air filters on a 2003 Civic. People want to put some "go-faster" parts on their PWC, but have no actual idea how the engine works and go with whatever.

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