Results 1 to 9 of 9

Thread: 2002 Duramax LB7 Tuning Pow Wow

  1. #1
    Junior Member
    Join Date
    Jan 2006
    Posts
    11

    Default 2002 Duramax LB7 Tuning Pow Wow

    First off I wanted to thank wait4me posting his tun. I wanted to post the calibration difference between his tun and stock and discuss it with you guys. I am just trying to learn a little bit before I flash my dads truck.

    The tun results are on the left and stock on right.

    {B0401} Glow Plug Timer (Start)

    Different from cell: 5,0 to cell: 5,3 inclusive.


    {B0502} Desired Boost Intake Temp Multiplier

    Different from row 0 to row 13 inclusive.


    {B0506} Maximum Boost Pressure

    Different from cell: 0,4 to cell: 4,9 inclusive.


    {B0720} Main Injection Pulse

    Different from cell: 8,11 to cell: 19,19 inclusive.


    {B0721} Main Injection Pulse (No Pilot)

    Different from cell: 8,11 to cell: 19,19 inclusive.


    {B0728} Max Injected Fuel Quantity (Warm)

    Different from cell: 17,0 to cell: 25,8 inclusive.


    {B0747} Max Fuel Quantity vs Speed

    Different from row 10 to row 11 inclusive.


    {G0801} Max RPM Allowed by TCM

    CAL: "4000.0" <-ALT: "3648.0"
    Last edited by snooz; January 19th, 2006 at 12:35 PM.

  2. #2
    Junior Member
    Join Date
    Jan 2006
    Posts
    11

    Default

    {G0901} Max Torque, Front Half Shaft
    CAL: "16259" <-ALT: "7000"
    {G0902} Max Torque, Front Prop Shaft
    CAL: "16259" <-ALT: "2774"
    {G0903} Max Torque, Rear Prop Shaft
    CAL: "16259" <-ALT: "5762"
    {G0904} Max Torque, Rear Axle
    CAL: "16259.0" <-ALT: "11297.0"
    G0905} Max Torque, Transfer Case
    CAL: "16259.0" <-ALT: "8744.0"
    G0909} Brake Torque Limit
    CAL: "1016" <-ALT: "250"

    This looks like pretty much disables Torque Managment right? This won't hurt anything because my dad tows a 11,000 bulldozer and I want to make sure.
    Last edited by snooz; January 19th, 2006 at 03:51 PM.

  3. #3
    Lifetime Member GMPX's Avatar
    Join Date
    Apr 2003
    Posts
    13,148

    Default

    Not ignoring the posts, just trying to find half hour spare to reply.

    Cheers,
    Ross
    I no longer monitor the forum, please either post your question or create a support ticket.

  4. #4
    Junior Member
    Join Date
    Nov 2005
    Posts
    20

    Default

    I'll try to answer for Ross (if I may). When you read the difference as "Different from cell: 8,11 to cell: 19,19 inclusive" this is refering to the particular cells for that calibration that have changed. It is not the exact value that it has changed from-to. (I hope this explains) what I'm thinking in my head.

    Dave
    2003 CC 3500, LB7
    EFILive and lovin it

  5. #5
    Junior Member
    Join Date
    Jan 2006
    Posts
    11

    Default

    Quote Originally Posted by snooz
    {B0502} Desired Boost Intake Temp Multiplier

    Different from row 0 to row 13 inclusive.
    Stock;
    LABELS Desired Boost Intake Temp Multiplier (Factor)
    IAT &#176;C Value
    -20 1.062500
    -8 1.023438
    4 1.000000
    16 1.000000
    28 1.000000
    40 1.000000
    52 0.976563
    64 0.960938
    76 0.953125
    88 0.937500
    100 0.906250
    112 0.882813
    124 0.812500
    136 0.773438

    CAL;
    LABELS Desired Boost Intake Temp Multiplier (Factor)
    IAT &#176;C Value
    -20 1.000000
    -8 1.000000
    4 1.000000
    16 1.000000
    28 1.000000
    40 1.000000
    52 1.000000
    64 1.000000
    76 1.000000
    88 1.000000
    100 1.000000
    112 1.000000
    124 1.000000
    136 1.000000

    Those are a lot different

  6. #6
    Junior Member
    Join Date
    Nov 2005
    Posts
    20

    Default

    Row 0 thru 13 corresponds to the number on the left (-20 thru 136). What " Different from row 0 to row 13 inclusive" is telling you is that when it compares the two tunes the rows on the right are different (although I'm not sure why it includes the few that match). Basically it tells you which cells differ. If you want to see the actual value difference go to the Calibration menu - Show Calibration Differences (Or hit CTRL+6). This will show you the actual numeric difference between identical cells when comparing tunes.

    Dave
    2003 CC 3500, LB7
    EFILive and lovin it

  7. #7
    Junior Member
    Join Date
    Jan 2006
    Posts
    11

    Default

    Quote Originally Posted by Dave Lewis
    Row 0 thru 13 corresponds to the number on the left (-20 thru 136). What " Different from row 0 to row 13 inclusive" is telling you is that when it compares the two tunes the rows on the right are different (although I'm not sure why it includes the few that match). Basically it tells you which cells differ. If you want to see the actual value difference go to the Calibration menu - Show Calibration Differences (Or hit CTRL+6). This will show you the actual numeric difference between identical cells when comparing tunes.

    Dave
    Thanks Dave! Which of the above settings can be tweaked if we want more power do you know?
    Last edited by snooz; January 20th, 2006 at 02:46 AM.

  8. #8
    Junior Member
    Join Date
    Nov 2005
    Posts
    20

    Default

    Injection pulse width, quantity, and timing will have the most effect, but go slow and take tiny steps learning the ffects of each change along the way. Don't make a bunch of changes at once as you will never figure out what had the most effect.
    2003 CC 3500, LB7
    EFILive and lovin it

  9. #9
    Junior Member
    Join Date
    Jan 2006
    Posts
    11

    Default

    Quote Originally Posted by Dave Lewis
    Injection pulse width, quantity, and timing will have the most effect, but go slow and take tiny steps learning the ffects of each change along the way. Don't make a bunch of changes at once as you will never figure out what had the most effect.
    I appreciate the help Dave. Well turns out my dads truck has a different cal than the one Jesse posted.

    Jesse = 15097100.cal
    Dads = 15094441.cal

    Noticed my dads has a lot more settings to tweak but I was able to take all the modifications and move them over to a backup of his stock tun.

    One thing I noticed is his cal has desired boost levels with and without EGR. It measures per stroke on the left and rpm on the top. Is this something I should mess with or not? I can post screenshots or send you the tun if you want to check it out.

Similar Threads

  1. 2009 duramax tcm tuning
    By dgdyno in forum Allison 5 & 6 Speed
    Replies: 36
    Last Post: June 1st, 2010, 02:56 AM
  2. Duramax Tuning
    By kurtfromct in forum General (Diesel)
    Replies: 4
    Last Post: January 13th, 2009, 02:36 PM

Posting Permissions

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