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  1. #1
    Dragdaddy71 Dragdaddy71's Avatar
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    R&D intake Grate on 2012 SHO Cruiser. Has this happened to anyone before?

    OK, I don't know if this is a some kind of a coincidence or what but I did all the Riva stage 1 items on top of rear exhaust, intercooler upgrade, cooling system upgrade and the ski GPS 70.1 MPH several times. So now just got the R&D intake grate as well as the pump seal kit, installed them and the ski not only feels slower but GPS's right at 65.9 MPH multiple times. What gives?


  2. #2

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    R&D grate on the previous FX would scrub a mph. Scrubbing that much would be surprising to me.

  3. #3
    Happily Self-Employed WFO's Avatar
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    First off to do a true back to back test, you should GPS and change parts then GPS again same day

    Second the aftermarket grate can slow you down a little, but its a trade off for safety

  4. #4
    remember that the weather,temperature,and the type of water you are in will effect speed greatly.the scoop on the new grate that is helping you hook up in the chop is also going to slow you down in flat water but not 4mph.please GPS the ski change the grate back to stock and GPS it again.i couldnt see that grate slowing you down more than 1-2mph at most.
    Last edited by FXSlowKroozer; 06-13-2013 at 09:46 PM.

  5. #5
    Dragdaddy71 Dragdaddy71's Avatar
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    I did test it back to back and it was the same temp. That is the only thing I changed at that time. Is it possible the water is blowing out in between the ride plate and intake grate? Also its not really for safety on the SHO cruiser, they are knot known for having a problem bucking anyone off. I did it for better hookup and possibly more speed and its def. way slower and cavitates bad. What could I have done wrong?

    The rubber flap between the intake grate and ride plate was supposed to be cut off correct?

  6. #6
    the intake grate should have lowered your cavitation not increased it and you should not seal the space between the grate and ride plate.

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