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Thread: RPM increase

  1. #1
    bigb'srxp's Avatar
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    RPM increase

    Help me understand last year my 07 rxp ran at 7950 rpm i filled ride plate holes and installed a riva grate and yesterday i took it out and was steadily pushing 8120 with 47 hrs could it just be breaking in or what


  2. #2
    West Texas RXP skoepp's Avatar
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    difference in air temp, water temp, humidity, wind, I assume that you were on the same lake if not altitude change. Many environmental varibles that can change power.

  3. #3
    bigb'srxp's Avatar
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    yeah same lake water was 72 air 75 seems like rpms never got that high last year at same temp

  4. #4
    outboard john's Avatar
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    Maybe a little less drag with the ride plate holes filled helped, and also even just a slightly different setting on your VTS will make you more efficient and pick up speed/rpm.

    OBJ

  5. #5
    West Texas RXP skoepp's Avatar
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    I rode at the same lake today as last week with same air temp and 100 to 150 rpm difference. I am at 2,600 ft, and i suppose that density altitude changes drastically depending on the moisture in the air and pressure.
    Go figure

  6. #6
    The ski's have taken a "backseat" to the Corvette DarthAWM's Avatar
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    Quote Originally Posted by skoepp View Post
    I rode at the same lake today as last week with same air temp and 100 to 150 rpm difference. I am at 2,600 ft, and i suppose that density altitude changes drastically depending on the moisture in the air and pressure.
    Go figure
    If you head for EV Spence you will lose 800ft

  7. #7
    sleeplessnMS's Avatar
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    Dont worry, heat's coming in and all our RXP's will say bye bye to good rpm's..... Time to start locating those larger rings and short shuttles again.

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