Page 8 of 8 FirstFirst ... 345678
Results 106 to 112 of 112

Thread: 260z project that needs some tuning help

  1. #106
    Fuel Injected!
    Join Date
    Nov 2024
    Posts
    58

    Re: 260z project that needs some tuning help

    Thanks for all the work. I went through the new file and compared it to the 260Z1109 and they look similar. I had a hard time comparing the spark and fuel tables, but it did look like the PW was different.
    I'm still learning what I'm looking at so I'm sure I'm missing a lot of info.

  2. #107
    Administrator
    Join Date
    May 2011
    Location
    Lakes Region, NH
    Age
    55
    Posts
    4,051

    Smile Re: 260z project that needs some tuning help

    I'm still learning what I'm looking at so I'm sure I'm missing a lot of info.
    No worries. Tunerpro has some nice tools to help compare different files. After selecting your bin file and your definition (xdf) you can load a calibration for comparison (Compare -> Load Compare Bins).




    After loading the comparison file(s) you can use the difference tool (Tools -> Difference Tool) to see a list of what's different between the files. Select the files you want to compare from the drop down menus and click Search to get a report. The results are displayed in hexadecimal values so they probably won't mean much, but you can get an idea what is changed then look at the values separately later.





    Or you can view current and prior data in graph mode.



    You can also view tables and data and use the compare function to show differences. Clicking the compare function (looks like scales) can switch between bins.

    Attached Images Attached Images

  3. #108
    Fuel Injected!
    Join Date
    Nov 2024
    Posts
    58

    Re: 260z project that needs some tuning help

    I have been looking through the files and there are a lot of differences between what you have done and what the 260z9011 file has. One thing I noticed is knock settings, most of the settings are 0 on the 260Z9011 and have different settings on the Larryz_3-27-25 file. There are so many lines to look at it is amazing what it takes to do this. I'm starting to understand were things are and how it works, but the learning curve is very steep at this point.
    Thanks

  4. #109
    Administrator
    Join Date
    May 2011
    Location
    Lakes Region, NH
    Age
    55
    Posts
    4,051

    Re: 260z project that needs some tuning help

    Are you using a knock sensor? If so I can move the knock tables over.

  5. #110
    Fuel Injected!
    Join Date
    Nov 2024
    Posts
    58

    Re: 260z project that needs some tuning help

    No, I don't have a knock sensor, just something I saw as I was looking at all the different tables. I'm looking forward to seeing how it does. I'm hoping to have the TPS on and working soon. What should I set it at, I'm
    thinking 0.5. AFI wanted it at -0.3.

  6. #111
    Administrator
    Join Date
    May 2011
    Location
    Lakes Region, NH
    Age
    55
    Posts
    4,051

    Re: 260z project that needs some tuning help

    It's surprising how many differences exist between the two calibrations. In some spark tables it looks like values were set to mimic the original distributor operation. This is common when creating a baseline calibration. Over time, test and tune sessions can create spark and fuel tables with more peaks than what a mechanical / vacuum system could accomodate.

    .5V is good. TPS voltage between .4V and .6V is pretty typical.

  7. #112
    Fuel Injected!
    Join Date
    Nov 2024
    Posts
    58

    Re: 260z project that needs some tuning help

    When it comes to tuning, I have done it old school, seat of the pants, vacuum gauge and listen for knocking. I have worked with fuel injection over the years but just keeping them running so when I installed the system in my Z that part was easy put doing data logs started to open my eyes on how much it takes to make these systems work. I now feel like I have now gone down the rabbit hole and I'm looking at a whole new world. I have started to see the flaws in the system (TPS and injectors) and partly in the way some of the files were written.
    It is going to be fun to start going through the process of logs and tuning now that we have a better baseline to work with.
    Thanks

Similar Threads

  1. New guy old project
    By The Stickman in forum Introductions
    Replies: 1
    Last Post: 04-24-2015, 05:26 AM
  2. Need help on new project
    By SuperHbody in forum GM EFI Systems
    Replies: 0
    Last Post: 01-05-2015, 06:45 AM
  3. Help with tuning an unusual turbo tbi project.
    By scottyd in forum GM EFI Systems
    Replies: 18
    Last Post: 12-13-2014, 12:53 AM
  4. new here...odd project and need help
    By travisr1988 in forum GM EFI Systems
    Replies: 5
    Last Post: 04-19-2014, 06:30 PM
  5. Another TPI Project..
    By ezobens in forum GM EFI Systems
    Replies: 16
    Last Post: 01-20-2014, 05:49 PM

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •