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  1. #1

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    RXP Stage 1+ questions

    Hi
    I'm going to upgrade my RXP 06 with a stage 1+ kit. I have a stock rxp now and I want to get "more" power from the ski. I want to upgrade the ski but I want to keep the stock exhaust and intercooler.

    I have checked out a stage 1+ kit @ 4-tec performance:







    Do you think the kit is OK?
    Will the prop work fine or do I need to repitch it?
    Is the blow-off valve necessary?
    Do you guys have any tips of some more parts I must order to the "kit" like a water-strainer or a catch-can etc.?
    And does a pair of new riva sponson improve the handling so mutch?

    Thanks
    Sebastian


  2. #2
    dduck dduck1628's Avatar
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    Quote Originally Posted by Kl0n View Post
    Hi
    I'm going to upgrade my RXP 06 with a stage 1+ kit. I have a stock rxp now and I want to get "more" power from the ski. I want to upgrade the ski but I want to keep the stock exhaust and intercooler.

    I have checked out a stage 1+ kit @ 4-tec performance:







    Do you think the kit is OK?
    Will the prop work fine or do I need to repitch it?
    Is the blow-off valve necessary?
    Do you guys have any tips of some more parts I must order to the "kit" like a water-strainer or a catch-can etc.?
    And does a pair of new riva sponson improve the handling so mutch?

    Thanks
    Sebastian
    This is a pretty simple kit. It doesn't interfere with the exhaust at all.

    You'll need a tool for the impeller, but that's about it.

    I would pass on the blow-off valve.

    I would recommend that you have the impeller repitched after you see where you rpms are. The impeller has a little too much pitch IMO and will need to be depitched to bring you RPMs to where the need to be.

    Also if you have not installed the Riva SC clutch washer yet, I would do it ASAP.

    Check out the drop in wheels for the Super Charger too.

  3. #3
    no reverse jayohentran's Avatar
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    if you're keeping the stock intercooler, i'd pick up a used x charger and some 42lb injectors. I would also get the pro series block offs or the re's, the jfizzle 4" intake, and the other stuff you have listed. some people like to have a blow off valve, some don't. i prefer to have one to give the supercharger a little bit more life.

  4. #4

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    Quote Originally Posted by dduck1628 View Post
    This is a pretty simple kit. It doesn't interfere with the exhaust at all.

    You'll need a tool for the impeller, but that's about it.

    I would pass on the blow-off valve.

    I would recommend that you have the impeller repitched after you see where you rpms are. The impeller has a little too much pitch IMO and will need to be depitched to bring you RPMs to where the need to be.

    Also if you have not installed the Riva SC clutch washer yet, I would do it ASAP.

    Check out the drop in wheels for the Super Charger too.
    I have already changed the washers and the wear ring to a SS-wear ring. Do you think the 14/19R i better then the 15/20R? Witch one is more easy to re pitch?

  5. #5

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    Quote Originally Posted by jayohentran View Post
    if you're keeping the stock intercooler, i'd pick up a used x charger and some 42lb injectors. I would also get the pro series block offs or the re's, the jfizzle 4" intake, and the other stuff you have listed. some people like to have a blow off valve, some don't. i prefer to have one to give the supercharger a little bit more life.

    OK,
    I think I'm going the order the 4" intake instead. But do you need to change the injectors when you are going to upgrade to the X-charger?

    Does the expensive block offs have better handling? and they look nicer :P

  6. #6
    Moderator Snoman's Avatar
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    Quote Originally Posted by dduck1628 View Post
    This is a pretty simple kit. It doesn't interfere with the exhaust at all.

    You'll need a tool for the impeller, but that's about it.

    I would pass on the blow-off valve.

    +1...If your gonna run a BOV this is not one to run..it will leak eventualy...

    I would recommend that you have the impeller repitched after you see where you rpms are. The impeller has a little too much pitch IMO and will need to be depitched to bring you RPMs to where the need to be.

    +1...Tiny bit to much prop for this application..IF you plan on going with an IC then you could deal with this prop for awhile till you get one..BUT if you dont plan on going external IC then go with a 14/19r..It will accelerate much better and you wont suffer on the top end...

    Also if you have not installed the Riva SC clutch washer yet, I would do it ASAP.

    +1..Get the OEM Scer clutches out..they have had issues with breaking..

    Check out the drop in wheels for the Super Charger too.
    With the kit you have shown above minus the 15/20 and going with a 14/19 and all the freebee mods you should have a solid 73-74 MPH ski....

  7. #7

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    Quote Originally Posted by Snoman View Post
    With the kit you have shown above minus the 15/20 and going with a 14/19 and all the freebee mods you should have a solid 73-74 MPH ski....
    Which BOV should I buy?

    When I upgrade my ski now I want it to be reliable

  8. #8
    Moderator Snoman's Avatar
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    Depending on your riding conditions most do NOT run a BOV...There are many differant type out there to run..The Greddy is a good BOV to go with..IMO..

  9. #9

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    Quote Originally Posted by Snoman View Post
    Depending on your riding conditions most do NOT run a BOV...There are many differant type out there to run..The Greddy is a good BOV to go with..IMO..
    OK
    Why shouldnt I run a BOV?

    I run in freshwater - lakes

  10. #10
    Moderator Snoman's Avatar
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    Not saying you shouldnt...We just dont run one because they have a tendency to leak causing a lose of boost..And unless your running in rough water to were you continuously keep coming hooked and unhooked then they really dont have a big effect on the clutches....

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