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  1. #1

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    07 ECU vs 08 X ECU - will it make a difference other than rpms

    Currently I have an 07 in my 2007 RXT with X Charger + 42#. I am planning to add an XS and in order not to have to put an RRFPR for the colder months I was thinking about putting an X ECU since it is already map for that configuration. Other than RPMs is the X ECU more aggressive with respect to timing and fuel map. Will I see a difference between the two?

    Thanks


  2. #2
    GOT BOOST? Dockside's Avatar
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    I was thinking the same thing but im not sure if an X ecu will work in my 2008 rxp. if it will i plan to do (X) ecu, SC, injectors, and XS innercooler

  3. #3
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    ttt

  4. #4
    maestro's Avatar
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    This is a very interesting and safe set up if it possible to fit the x ecu on 215 models

  5. #5

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    Quote Originally Posted by maestro View Post
    This is a very interesting and safe set up if it possible to fit the x ecu on 215 models
    My dealer will attempt to do this in 2 weeks on my bike, they are going to the seadoo preview this weekend.

    Will let you guys know what happens, I though somebody had attempted this before.

  6. #6
    GOT BOOST? Dockside's Avatar
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    I always though that 08 ecu's werent compatible with any other year but again i dont know that forsure. anyone know if you can use an 08 x ecu on a 08 215 rxp?

  7. #7
    Having Fun jp1300r's Avatar
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    Its been done the other way 08 RXP 215 ecu to a 08 RXPX 255. So you would think you could switch them without a problem, too.

  8. #8
    Quote Originally Posted by jp1300r View Post
    Its been done the other way 08 RXP 215 ecu to a 08 RXPX 255. So you would think you could switch them without a problem, too.
    Now why would someone do that? I thought the '08 215 ECU's made their power at 8000 RPM just like the X ECU's?

  9. #9
    Having Fun jp1300r's Avatar
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    RXP215 rev limit 8300, RXPX 255 rev limit 8200.

  10. #10
    Having Fun jp1300r's Avatar
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    A few who have tried say it makes no different power wise. But these guys mainly want it for the fuel map, so they don't really need to tune their RXP. After changing to the X SCer, 42's and external IC.

    Adding here: The X ecu seems to be easier to tune up with a bigger SCer, too. If you add a RRFPR later, injectors and bigger SCer.

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