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  1. #1

    install aftermarket parts what impeller and injector use???????

    hi some problem be to find ?? i have seadoo RXT 215 2008 years install aftermarket below :

    (1) rude 2 sc
    (2) seadoo racing cltuh washer
    (3) mc master spring washer
    (4) cutom made 4" intake filter
    (5) riva intake manfold block-off kit
    (6) riva valve train kit
    (7) cutom made power cooler copy by gen 2 cooler but coil is use copper
    ( cutom made catch can
    (9) riva water box
    (10) worx racing sponson kit
    (11) R&D gate
    (12) stock nozzle 83mm

    i install finsih and test the ski , below is my test result :

    (A) use stock ECU, riva 50ib injector, riva 14/19r 4 bade impeller test in sea RPM 6700

    (B) use stock ECU , RIVA 50Ib injector, riva 15/19r 3 bade impeller test in sea RPM 7200

    (c) use stock ECU , RIVA 50ib injecor , riva 14/19r 3bade impeller test in sea RPM 7600

    (d) use seadoo racing re-progam ECU, riva 50ib injector , riva 14/19r 3 bade test in sea RPM 7900

    (e) use seadoo racing re-progam ECU , riva 50ib injector, riva 15/22r 4 bade test in sea RPM 7900 gps 64.5mph

    (f) use seadoo stock ECU , RIVA 50ib injector , riva 15/22r 4 bade test in sea RPM 7800-7900 gps 66.9mph

    (g) use sedoo stock ECU , stock injector, riva 15/22r 4 bade test in sea RPM 7700-7800 gps 69.5mph

    i can no find the problem , what impeller i want to use??? and what injector i want to use??? but i want to seadoo racing re-progam ECU to RPM 8650 can u help me ??????

    (h) use seadoo stock ECU, stock injector, riva 14/19r 3 bade test in sea rpm 7700-7800 gps 70.3mph


  2. #2
    richrxp's Avatar
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    Check your afr,a wrong afr can cause low rpm.

    With the rude 2 you have ,you should make more rpm's then your making.

    If your lean you won't notice lower rpm,s but you will burn your pistons.

    If your rich,it will cost rpm's and performance.

    Is your slip on the rude 2 ok?

    Isn't the impeller on the rude 2 slipping?

    Maybe a boost leak check all hoses.

    Make sure your 4 "kanaflex cna get enough air.

    Install a afr gauge ,otherwise you don't know what your doing.

    You can't add parts without knowing your afr rate.

  3. #3
    Moderator Snoman's Avatar
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    Quote Originally Posted by richrxp View Post
    Check your afr,a wrong afr can cause low rpm.

    With the rude 2 you have ,you should make more rpm's then your making.

    If your lean you won't notice lower rpm,s but you will burn your pistons.

    If your rich,it will cost rpm's and performance.

    Is your slip on the rude 2 ok?

    Isn't the impeller on the rude 2 slipping?

    Maybe a boost leak check all hoses.

    Make sure your 4 "kanaflex cna get enough air.

    Install a afr gauge ,otherwise you don't know what your doing.

    You can't add parts without knowing your afr rate.

    +1...I would NOT run your stock injectors again with your 2 rude..There is not enough fuel supply with then and a 2 rude..you will run very lean..

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