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  1. #1

    Will a new intake give me more HP on my 2005 RXP

    Help! I need more power & speed...I have a 2005 rxp with all the stage 3 stuff etc...but it's not fast enough. If I change the intake to the APC intake will it help? :- Any recommendations? Thank you..


  2. #2
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    Quote Originally Posted by bmac View Post
    Help! I need more power & speed...I have a 2005 rxp with all the stage 3 stuff etc...but it's not fast enough. If I change the intake to the APC intake will it help? :- Any recommendations? Thank you..
    UM, just saying you have Stage 3 stuff is kinda vague. There are so many products that can be put on a ski that we need to know what you have installed.

    We would need the following to make proper recommendations...

    - List of all current mods and upgrades (intake, exhaust, SC, ECU, prop, etc)...LIST IT ALL!
    - Current WOT speed and WOT RPM's...
    - If you are monitoring AFR's, what are you seeing, especially at WOT...
    - Who did the installation? Who is doing the tuning?


    Provide us with that list and we can lead you down the road to faster speed...


    --Danny

  3. #3
    formerly Gold06RXP Turbo Nick's Avatar
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    If all you do is put on a new intake manifold your not gonna go any faster. That intake is a copy of the stock one just made out of AL. Its main advantage is it wont split under high boost pressure. If you wanna go faster get a bigger prop and a bigger SC

  4. #4
    CHAD IBADTON's Avatar
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    Yes where are u at on rpm -speed?

  5. #5
    Thanks for the replies. Here's what's on the ski. Riva stage 3, Rude 3 SC , 50 lb injectors, pro series rear intake, riva exhaust, valve train upgrade, fuel pressure regulator, riva ecu, pro series blow off valve, 15/22 impeller, 82mm nozzle, ride plate holes filled. I'm not sure what it's running on the RPM's, but my speed ranges from 80 in a little chop to around 83 on the GPS. It feels strong, but I want to get more top speed.

  6. #6
    West Texas RXP skoepp's Avatar
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    Need to know rpms.
    What intercooler are you using?
    Ride plate mod will help.
    What slip are you running on R3?
    How is your compression?

  7. #7
    I'm using the riva gen II intercooler. my original engine dropped a valve and blew up, so i have a replacement engine from Seadoo, it has about 30hrs on it now. I ran it like I stole this summer and it seems to be pretty good. I've had the local shop just bolt this stuff on, so I have no idea about the slip i'm running on the rude3. Help, i'm starting to learn how important the air/fuel ratio is as well as the rpm's. The next time I take the ski out, I will check out the RPM's so I know. What slip should i be running and any idea where i can get the gauges to monitor air/fuel.

  8. #8
    oct6454's Avatar
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    Well to find your AFR your going to have to tap it yourself, there is no place to just plug a gauge into on the ski.

  9. #9
    Stockrxp's Avatar
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    I have a j pipe u need that is tapped to monitor afr

  10. #10
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    Is that fuel regulator a RR setup? What's the base pressure set at? You might be good with fuel, but I have a feeling it might be running a tad lean with that 3Rude and only 50's on that Riva ECU...SO before you do anything you need to figure out your AFR's, QUICK...

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