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  1. #1
    wakejumper48's Avatar
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    whats the stock boost and after market boost readings?

    i got an 04 rxp
    wondering what the stock boost is, nothing is add to the ski. reason wondering gona racing next session and want to step up the power a lil so thinking adding a Gen 2 from riva and fizzles XS inter cooler what boost that bring the ski up to? got to keep it under 14 psi
    was gonna add a like a c4 charger or something but that would put me in a open class i think.. im new to the race end of jetskis so
    thxs


  2. #2
    Nothin' better than Doo'in it! BigDaddyRXP's Avatar
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    Stock boost on your 04 is around 7 psi. Your gonna need much more than a gen 2 & IC to touch 14 psi! If your limit is just under 14 psi..... I would look into stepping it up to 14

  3. #3
    wakejumper48's Avatar
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    im trying to stay in the limited class but not be at the back of the pack but i dont want to get pushed up to the open class.
    whats the ET 137 R? never heard of it
    on a tight budget so i know ill need a new prop for sure dont wanna run on stock one with a bigger charger around the buoys right? and add fizzles air delivery system or i might try to make one my self and the inter cooler could wait till we got more money if i have to i guess
    thxs

  4. #4
    Fastest in my cove sfackett0's Avatar
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    How many hours do you have on your ski? My guess is with a 04 your close to needing a rebuild, if thats the case just get a X-charger, its cheaper than a gen2 wheel and a rebuild. Make sure you get the viton seal installed too. You should see around 10psi depending on other mods like 4" intake and ext innercooler as well as temp/humidty

  5. #5
    wakejumper48's Avatar
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    120 hours
    Rebuilt it at like 80 hours
    And in hot sunny humid Fl

  6. #6
    shrabber's Avatar
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    Im in florida too xcharger will give you a solid 10lb boost

  7. #7
    wakejumper48's Avatar
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    So X charger, inter cooler, 4 in intake I should be good?
    What prop u runing with ur X chager?

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