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  1. #1

    Stage 3 Kit Review?

    I'm wondering if anyone has bought this kit, put it on a stock FZ, and has some information they can donate. I'm wondering if the install is straightforward, and if there are any problems that advertisement would not tell you. Is it a good package per dollar? What kind of speed/acceleration #'s did you see (I know it claims over 80mph). THanks.


  2. #2
    FZR AD's Avatar
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    Hello my friend ...

    I have a full Riva Stage III now ...

    Finished installing the 160mm liner and 160mm 15/23 that comes with the kit ...

    Riva said 80mph+ ... I say bullshit ...

    75mph no matter how hard you try ... I tried it in the morning ... afternoon ... mednight ... with empty stomach ... etc ...

    I was going 80.5mph with stock pump and 13/25 ...

    Am not saying the 160mm setup is bad ... no, but it needs some effort to get the good results ...

    I love the zero caviation it gave me ... but i need to hit 84mph in top speed ...

    I will start depitching my 15/23 today ... will see what should Riva replace the 15/23 with ... 15/20 maybe ...

  3. #3
    Greetings. I've got a 2009 FZS with full Riva Stage 3 plus the 1000cc injectors and 3Bar MAP sensor. I'm not a GPS junky or racer, just a rec guy.

    I can't comment on the difficulty of the installation because I had a dealer do it for me.

    As far as performance, its a blast. The accelleration is markedly better and the pump stays glued to the water in the lakes. Off shore in 2-4 seas will get you airborn with 25-50% of throttle.

    Check these links if you like.







    Of note--between 3-4000 rpm there is a noticible shudder which I've heard as normal for the E1 wheel. It does make me wonder how long my SC clutch is going to last.

  4. #4
    steffi69's Avatar
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    Jul 2010
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    How many hours did you spend with the stage 3 kit?
    What are the parts that are broken? only the SC clutch?
    you have an internal modification of the engine? (piston? valve springs?)

    THX

  5. #5
    I had the kit installed at 76 hours. So far I have 10 hours on it about half on off shore and half on a lake without problems. I haven't had any components fail, but there is a lot of talk on the forums about the supercharger clutch failing on higher boost set ups.

    I don't have the internals yet, but plan on those this winter as well as an H1 wheel/housing.

    If you have the $$, I highly recommend it. I would also offer that the guys at Riva were pretty good about helping. When my mechanic had questions, Bubba at Riva was on the phone with him and got it all sorted out.

  6. #6
    rick xp's Avatar
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    Quote Originally Posted by FZR AD View Post
    Hello my friend ...

    I have a full Riva Stage III now ...

    Finished installing the 160mm liner and 160mm 15/23 that comes with the kit ...

    Riva said 80mph+ ... I say bullshit ...

    75mph no matter how hard you try ... I tried it in the morning ... afternoon ... mednight ... with empty stomach ... etc ...

    I was going 80.5mph with stock pump and 13/25 ...

    Am not saying the 160mm setup is bad ... no, but it needs some effort to get the good results ...

    I love the zero caviation it gave me ... but i need to hit 84mph in top speed ...

    I will start depitching my 15/23 today ... will see what should Riva replace the 15/23 with ... 15/20 maybe ...

    The 160mm prop and liner are a good thing but you need at least 17+ PSI to make it work.

    I have a stock motor, ET16, Cooler, 160mm 15/23 etc and that does 87 mph all day every day.

    Bigger charger and it was doing 91 mph on a stock motor.

    Also you have to buy the Riva reduction Nozzle to make this pump setup work.

  7. #7
    Addicted Member 5001craig's Avatar
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    Quote Originally Posted by rick xp View Post
    ...Also you have to buy the Riva reduction Nozzle to make this pump setup work.
    What size nozles are you running Rick?

    And what cooler do you run if you don't mind?

  8. #8
    rick xp's Avatar
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    I run an 84mm venturi with a 91mm steering nozzle.

    The 86mm is 2 mph faster but it has more cavitation which is no good for racing.

    I am using a Watson Racing Intercooler Kit.

  9. #9
    Addicted Member 5001craig's Avatar
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    Gotcha.

    Thanks for the info.

    I need more boost.

  10. #10
    gmoeller's Avatar
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    Quote Originally Posted by 5001craig View Post
    Gotcha.

    Thanks for the info.

    I need more boost.
    I need a clutch....and then I need more boost!

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