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Thread: how many rpm's

  1. #1

    how many rpm's

    my 04 rxp with a stage 1 kit is only turning 7700 rpm, is that normal? my top speed at 1650ft and 93 degrees was only 65 mph. I did notice a whole lot of cavitation out of the whole and am ready for an aftermarket impellar, any suggestions on what might work the best? I may also change my ecu if it is worthwhile


  2. #2
    Site Admin Green Hulk's Avatar
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    I think if you install a new wear ring and a Solas 14/19 impeller you will be extremely pleased with your results.

  3. #3
    Got Boost? psycho rxp's Avatar
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    The riva stage 1 should have come with a solas 14/19 prop, and top loader grate also....is it a riva kit?

  4. #4
    Got Boost? psycho rxp's Avatar
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    You shouldn't have any cavitation unless your wear ring is worn out , or your carbon seal is wearing down.....how many hrs do u have?

  5. #5
    I have 55 hrs and already replaced the sp clutch with the stock set up, I did put on the riva blow off valve. I may have sucked up some debris in my pump so I do plan on pulling it over the weekend to check the impellar and wear ring. it is a riva stage one and the previous owner installed the kit so I'm not sure if the impellar was replaced at that time or not. what rpm's should I be turning?

  6. #6
    Site Admin Green Hulk's Avatar
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    You need to shoot for 8000-8100

  7. #7
    JFizzleJR's Avatar
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    65 MPH!? Is it just me or is that speed with the riva stage 1 a little low?

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