XDF Progress

Discussion in 'Advanced Tuning | Coding' started by jyamona, Dec 7, 2016.

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  1. jyamona

    jyamona Corporal Vendor

    Link to the Github: BMW XDFs

    Hey guys, figured I'd start a thread on this topic over here as well... with an update :)

    12/9/2016 XDF Update:

    The Fuel (Start) table has been added :) So go enjoy no more cold start E85 issues!

    Also, very big thanks to Martial for adding ALL missing table axis. If anyone spots an issue, please comment.

    Thanks!
     
    Last edited: Dec 8, 2016
  2. doublespaces

    doublespaces Administrator

    AZ
    2009 E93 335i
    This is going to be one of my favorite threads. Love the work being done, thank you!
     
  3. Same here, very exciting stuff!

    @OP
    Could you elaborate on the existing limitations? I'm just curious to see how much this opens up possibilities
     
  4. jyamona

    jyamona Corporal Vendor

    Currently, users running E85 or blends of E85 had issues with the car starting in colder weather. This table is basically the % fuel enrichment at start (cranking IPW enrichment as classic injector ppl know it), so you can start your car in the winter smoothly...every time.
     
  5. Sounds Fantastic! But... What I was wondering is if you could give a little insight on what other capabilities there are?
     
  6. doublespaces

    doublespaces Administrator

    AZ
    2009 E93 335i
    Capabilities of what exactly?
     
  7. By this I want to know (Mainly out of excitement and I want to hear more about it)

    What all will we be able to manipulate with the XDF app?
     
  8. doublespaces

    doublespaces Administrator

    AZ
    2009 E93 335i
    An XDF isn't an app, it is just a format for the definition of the tables stored inside the DME BIN file. The possibilities are endless when it comes to modifying those table values and or DME logic.
     
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  9. arsenalmse

    arsenalmse Private Vendor

    27
    I'm glad this thread is on Spool Street! Keep up the good work jyamona. :)

    Also should we post the link for the repository here, or is that e90Post proprietary? ;)
     
    Last edited: Dec 7, 2016
  10. Noted! And, sounds awesome! :D
     
  11. doublespaces

    doublespaces Administrator

    AZ
    2009 E93 335i
    If there are any files, we have a resource section for exactly that.
     
  12. V8bait

    V8bait Corporal

    The repository is on github, it's absolutely not affiliated with any of the forums and should never be. Although they can provide the files if somebody wants to keep it updated. I don't have the link handy but just Google 335i xdf and choose the github link, it's one of the top 3 or 4 results.
     
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  13. arsenalmse

    arsenalmse Private Vendor

    27
    @V8bait I am very familiar with the link, didn't know if we wanted to post it here for those who aren't so familiar with it. You guys have done an awesome job with those defined maps!
     
  14. jyamona

    jyamona Corporal Vendor

    Link added to my first post for those who don't have it.
     
  15. jyamona

    jyamona Corporal Vendor

    Small update here, I have traced the warm up enrichment tables for the short "open loop" period following start. There are a few, but I think I narrowed down one that can be used to cure the issues described above. It is currently being tested. Once confirmed, it will be added to the flex fuel implementation as well smile.gif
     
  16. doublespaces

    doublespaces Administrator

    AZ
    2009 E93 335i
    Very nice! Luckily it doesn't get that cold here. Right around freezing and then it started to get warmer again.
     
  17. Joe

    Joe Specialist

    This has always been my favorite thread. If you've ever seen The Social Network... This thread of Jake Y's is the N54 equivalent to me, lol.
     
  18. crowdedthehouse

    crowdedthehouse Lurker

    23
    2007 6AT E93 335i
    What are the possibilities of getting the DME to run PI a VTT double barrel shotgun secondary HPFP or similar to push the fueling without relying on a slave unit
     
  19. jyamona

    jyamona Corporal Vendor

    It will never drive PI directly without an intermediate box to fire the injectors. It may be able to control 2x HPFP directly.
     
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  20. crowdedthehouse

    crowdedthehouse Lurker

    23
    2007 6AT E93 335i
    Would running two HPFPs be something you or anyone would be working on so we can do away with PI?
     

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