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  1. #1

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    May 2015
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    2005 rxt stage 1 speeds

    I have seen a plethora of speeds, here is my list :

    RIVA OPEN LOOP
    SOLAS 14/17
    2 DEGREE PUMP WEDGE
    RIVA OPAS DELETE
    KANAFLEX 4"
    SOLAS GRATE
    FREE FLOW EXHAUST
    REBUILT STOCK S/C METAL WASHERS

    I'm running 65 gps...this seemed a tad bit off? Im only turning 7950 rpms...I have a cheap air filter im thinking about eliminating from the front of the kanaflex that might be limiting my rpms.... I read someone put on a 14/18.5 solas and got really good results out of the same set up I have..thoughts?


  2. #2
    Mod less, ride more! troyheb's Avatar
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    I had a 06 RXT with a Riva stg 1 kit, and it would run right at 70 mph gps.

  3. #3
    JFizzleJR's Avatar
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    How fast was it stock? Need to get your rpms to 8100 for max potential. 14/18.5 would be steeper than 14/17 so it wouldn't help you at this point.

  4. #4

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    I never GPS the ski stock.. when I had my 13/18 prop in the ski it pulled harder..from a dig the 14/17 hooks up with 0 cavitation but seems to lack the pull through out.

  5. #5
    Mod less, ride more! troyheb's Avatar
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    My Riva kit came with a 14/17. I would turn it 8200. You may have a boost leak or something else going on.

  6. #6

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    I don't know whats holding me back...was going to pop the stock grate back on it and see if that helps..Ill add its got a SBT swap in it I dont know if that relevant ( It took me 3 SBT motors to get a good one ) My only boost leak would be from my S/C to my intake manifold right ? the rubber elbow is on there well..Maybe eliminating my filter at the front of the 4" kanaflex will give me some extra rpm to turn the prop...Its routed to the front so I shouldn't be concerned about sucking anything up right? I just replaced the head gasket and had the head trued, while I had the ski apart I added all these bolt on mods...

  7. #7
    Mod less, ride more! troyheb's Avatar
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    Can you check compression?

  8. #8

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    May 2015
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    What should my cylinders be at.

  9. #9
    Quote Originally Posted by whitson218 View Post
    I have seen a plethora of speeds, here is my list :

    RIVA OPEN LOOP
    SOLAS 14/17
    2 DEGREE PUMP WEDGE
    RIVA OPAS DELETE
    KANAFLEX 4"
    SOLAS GRATE
    FREE FLOW EXHAUST
    REBUILT STOCK S/C METAL WASHERS

    I'm running 65 gps...this seemed a tad bit off? Im only turning 7950 rpms...I have a cheap air filter im thinking about eliminating from the front of the kanaflex that might be limiting my rpms.... I read someone put on a 14/18.5 solas and got really good results out of the same set up I have..thoughts?

    When it comes to posted speeds...a few "levels" are measured and posted so that inconsistencies can somewhat be explained.

    Fuel load...3bars or less is typically sought...less weight.
    Temps...air and water
    alt...pressure...humidity.
    driver weight
    water..salt/fresh...condition...ie glass...ripples...chop...ect

    Air filters, no matter the make...are restrictive. remove it and if worried about it..place some ss or fiberglass window screen zip-tied across opening. My bet...that'll get you an easy 100rpm right there.

    What's your oil level lookin like?

    Dunno what your grate is like...but most aftermarket grates are bigger drag than oem. Need ponies to compensate for it.

  10. #10

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    took my filter off yesterday and saw a consitant 8k...which took me from 65 to 66, this was half fuel, water temps i would say in low 70s, 93 degress outside...its the solas after market grate, top loader I believe. I bought this prop used so Im guessing that might be my culprit..Its just frustrating. I did all these mods I was hoping for a little more out of them. Everything I read people are getting 69-70. I weigh 215 , fresh water. I road in slight chop and ran 66 and I ran glass and ran 66. I dont get it. oil level is good..between the lines on dip stick.

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