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  1. #11

    Join Date
    Jul 2005
    Central North Carolina
    Your modified Riva SS grate looks to be the best for rough water use. If top speed on calm water is what you are lookin for then find a R&D grate there should be 1 to 2 mph difference in these two grates in calm water. With the R&D being the faster of the two. Also I just looked at your ski info at the bottom of your page. you might gain a little speed if you re pitch your prop to a 13/21 Then this should get you closer to 8500-8600 rpms. This is where I like to see these motors run max rpms with stock
    valve retainers

  2. #12

    Join Date
    Mar 2018
    Huntsville, AL
    Maybe my post was confusing.

    my 2009 SHO has a riva stainless grate and I have had no issues with it.

    I am buying a 2016 SVHO and it has the modified stock grate from deans team.... so worried it could cause stuffing issues.. also slow it down. I am buying the SVHO to shoot for 85-90mph.

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