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  1. #1
    Having Fun jp1300r's Avatar
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    JP's 09 RXPX Project

    I picked up a used 09 RXPX a couple months ago. I told my wife and myself, "I am going to leave this one stock." Well...its going to look stock and sound pretty stock.

    So here is my goal for this PX project, 80+ mph on GPS on the seat (not supermaning) with the stock engine, stock ecu, stock X charger. The only mods to the engine will be FA removal, 4" front air intake, and O/L cooling. The rest will be pump and hull mods.

    So far, I am only at 72.1 with a R&D grate. I think the ski has a injector problem. One is acting like it is stuck open. The ski only has 18 hours and set for long period of time. Once I get this sorted out and get a good base line, I will get going on this thing.

    Oh, I have another project when this one is done.
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  2. #2
    REID2168's Avatar
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    sounds great.....handle it Homey!!!!!!!!!..........BINESS!!!!!!

  3. #3
    Mod less, ride more! troyheb's Avatar
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    I have no doubt you will get there.

  4. #4
    Having Fun jp1300r's Avatar
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    Okay, New baseline 72.6mph on the seat, 73.2mph supermaning on near glass. I changed out the injectors and started on the trailer, ran smooth. Put it the water and it still runs rough idle and funky at low rpms. I guess the injectors are okay, F... I than changed one coil that maybe acting up. While the low rpm stuff straighten out, the idle still is a little funky. Seems to be running fine on top all the time. Pulls 8100-8140 no problem. Water today is 77* and the air is 78*. Think I am going to get the TB reset and get the 10 hour maint. warning taken off next week.

    If I get some time in the next couple weeks, going to get a O2 sensor set up .

  5. #5
    Nothin' better than Doo'in it! BigDaddyRXP's Avatar
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    Quote Originally Posted by jp1300r View Post
    Okay, New baseline 72.6mph on the seat, 73.2mph supermaning on near glass. I changed out the injectors and started on the trailer, ran smooth. Put it the water and it still runs rough idle and funky at low rpms. I guess the injectors are okay, F... I than changed one coil that maybe acting up. While the low rpm stuff straighten out, the idle still is a little funky. Seems to be running fine on top all the time. Pulls 8100-81400 no problem. Water today is 77* and the air is 78*. Think I am going to get the TB reset and get the 10 hour maint. warning taken off next week.

    If I get some time in the next couple weeks, going to get a O2 sensor set up .
    I thought you said you were sticking with the stock ecu ....

  6. #6
    Having Fun jp1300r's Avatar
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    [QUOTE=BigDaddyRXP;1651784] I thought you said you were sticking with the stock ecu .... [/QUOT

    Let me fix that for you.

  7. #7
    home of the dislexic fingers breon's Avatar
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    stock ecu reflashed to 8800 rpm doesnt count..LOL

  8. #8
    Moderator Insanediego Joe's Avatar
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    see that gpr in your picture? Take motor from rxpx drop into gpr and your at 80 mph+++ with stock motor. Problem solved!

  9. #9
    Having Fun jp1300r's Avatar
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    Quote Originally Posted by breon View Post
    stock ecu reflashed to 8800 rpm doesnt count..LOL
    It will not be reflashed. Staying stock ecu non-reflashed. When I do speed run videos, I will show rpms. Promise.

    Quote Originally Posted by Insanediego Joe View Post
    see that gpr in your picture? Take motor from rxpx drop into gpr and your at 80 mph+++ with stock motor. Problem solved!
    Hey Joe, The thought has cross my mind, but the engine will be coming out of the 08PX thats running 88.5 right now not the 09.

  10. #10
    home of the dislexic fingers breon's Avatar
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    i know it can be done...just takes alot of work..and a good cool day...when all the planets align...

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