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  1. #1

    How much boost does a RXT 260 make?

    I have always wondered about this. How much boost does the supercharger make on a 2013 RXT 260? Is it over 10psi?


  2. #2
    boost junkie skidoochris's Avatar
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    rule of thumb for every psi boost = 10hp
    a 1500 with 8.5:1 should make about 140hp NA
    I have never had a 260 but my est is 11-12 psi @ 8000 rpm


  3. #3
    GRF + DashPac:) seadoo02xp's Avatar
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    Stock is under 10 at 8100. If you spin it up to 8800 it will do about 12.5 ish on a hot day

  4. #4
    Mod less, ride more! troyheb's Avatar
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    At stock rpm's it should make about 10psi.

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  6. #5
    wotxxxsd's Avatar
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    I've heard 9 lbs on a 260 ski and 6 lbs on a 215hp ski..

    Just what I've heard for the stock 215 & 260 skis..

  7. #6
    SLASHER's Avatar
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    9 pounds ...

    With rear air and short solid IC pipes 10.5 ish

  8. #7
    To much is never enough Badvgood's Avatar
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    Quote Originally Posted by skidoochris View Post
    rule of thumb for every psi boost = 10hp
    a 1500 with 8.5:1 should make about 140hp NA
    I have never had a 260 but my est is 11-12 psi @ 8000 rpm

    Has anyone on here ever made a BHP Guesstimater in Excel or anything based on the data we have on their engines. Displacement, boost, Compression ratio, injectors blah blah blah. I guess the starting point would be the data we have from the manufacturer - Stock NA 140 up to the 260 and everything inbetween.

  9. #8
    GRF + DashPac:) seadoo02xp's Avatar
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    I have motec logs if that helps and there are screen shots in reids thread

  10. #9
    captain slow Turbo Retro's Avatar
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    Wonder what 18psi on a turbo is??

  11. #10
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    Quote Originally Posted by retro_racer View Post
    Wonder what 18psi on a turbo is??
    fast

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