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  1. #1
    alex29573's Avatar
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    anyone understand the vtech tuning maps?

    looking at the new 260 rxpx's they run 34-36 at mid and 36-38 degrees up top

    the e85 tunes for the same ski run 36 mid and 39 up top


    now it gets confusing:

    a rxp 255 runs 46 or 49 mid and 36 up top

    a gtx 215 runs 41 mid and 29 up top
    a 2007 rxp 215 or gtx 215 (listed again) run 41-42 and 26
    a 2005 or 2006 rxp 215hp runs 29 midrange and 15 up top


    So for a 260 rxpx why is the e85 tune so similar to the gas version for that ski?
    why does a 255 rxpx get more timing that a 260 rxpx in midrange?

    also looking at the externally intercooled skis, why so much difference between each ski? i thought 04-07 were the same?


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  3. #3
    mac_man_luke's Avatar
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    Not sure the numbers translate from Siemens to Bosch ECUs

  4. #4
    boost junkie skidoochris's Avatar
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    is the target max boost the same for both 260 maps
    39* @ 25psi is not the same as 38* @ 12 psi
    also a turbo map will have much more boost in the mid (same as wot) than a SC

  5. #5
    alex29573's Avatar
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    Doesnt say what the target boost is but basically all the 260 maps are like that

  6. #6
    www.eastcoastpwc.net Scott's Avatar
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    Quote Originally Posted by alex29573 View Post
    looking at the new 260 rxpx's they run 34-36 at mid and 36-38 degrees up top
    You would think more timing in the mid area and less up top

  7. #7
    boost junkie skidoochris's Avatar
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    I have seen that at mid rpms around 7000+- is where you can get the most knock ( biggest load )

  8. #8
    alex29573's Avatar
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    That wouldnt explain the difference between the 260 and 255's curves...

    Also why is the e85 curve basically the same

    Also why does an 05/06 rxp get a different tune from an 07 rxp?

  9. #9
    alex29573's Avatar
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    Anyone else? Mr vtech? Would be good to know since ppl are going to be editing their own maps

  10. #10
    i will update some info shortly.

    In editor all values are visible in a easier way then just the file names.

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