Results 1 to 8 of 8

Thread: Injector Data 12613412 Gen 3 PCM

  1. #1
    Tuner in Training
    Join Date
    Mar 2023
    Posts
    13

    Question Injector Data 12613412 Gen 3 PCM

    Hey guys, Just wondering if someone could share a tune for 12613412 Injectors. I need to convert it for a gen 3 computer. The files I've found already that have been converted are sorta all over the place.

    Here's what I have so far - 2006 Sierra 2500HD 6.0 Tuned With crossover sheet 12613412.hpt
    Here's One file I was comparing to - 1000th try is a charm maf tune 3 ve 3 -adj maf -- 12613412 injector data (2).hpt

    Somewhere on here, there is an excel Sheet that converts LS3 to LS1 data, I used that to convert the data I found from a stock tune (or so I assume) that had 12613412 injectors
    Notice the fuel tables vs voltage and flow rates vs intake vac are different.

    Does my fuel Data look right (edit - Looked at a 3d chart and something is def wrong) ? Does anyone have a stock tune file for a vehicle with these injectors or even better a converted fuel data for a gen3 to compare to?

    edit - Forgot to ask but I've seen guys online only change fuel flow rate data (and very roughly) when swapping OEM injectors. Can ou tune perfectly fine without worrying about injector data? Is it more of a thing you do so you don't have to redo MAF and VE if you swap injectors latter?

    Thanks
    Last edited by JacobVH; 03-31-2023 at 07:58 PM.

  2. #2
    Tuning Addict blindsquirrel's Avatar
    Join Date
    Apr 2017
    Location
    Meridian MS
    Posts
    7,569
    P59 12613412 58psi base return-style.hpt
    P59 12613412 58psi returnless.hpt

    The spreadsheet was made for early Gen 4s, it does not give valid data when used with something like 2010 L96 data, which is what those injectors come from.
    https://forum.hptuners.com/showthread.php?98228

  3. #3
    Tuner in Training
    Join Date
    Mar 2023
    Posts
    13
    Quote Originally Posted by blindsquirrel View Post
    P59 12613412 58psi base return-style.hpt
    P59 12613412 58psi returnless.hpt

    The spreadsheet was made for early Gen 4s, it does not give valid data when used with something like 2010 L96 data, which is what those injectors come from.
    https://forum.hptuners.com/showthread.php?98228
    Thanks, That helps a lot. I didn't realize the spreadsheet was just to convert earlier years, but that explains why my numbers were all off.

  4. #4
    Potential Tuner
    Join Date
    Apr 2023
    Posts
    7
    Quote Originally Posted by blindsquirrel View Post
    P59 12613412 58psi base return-style.hpt
    P59 12613412 58psi returnless.hpt

    The spreadsheet was made for early Gen 4s, it does not give valid data when used with something like 2010 L96 data, which is what those injectors come from.
    https://forum.hptuners.com/showthread.php?98228
    INJ.jpg

    I am about to update my 25lbs multec injectors to the 50lbs delphi (12613412) but comparing files that people share in the forums I have seen that in the limits section in the minimum pulse of the injector and the default injector pulse they put the same values. Is this correct or is the configuration you share recommended?

  5. #5
    Advanced Tuner Matt Vardaman's Avatar
    Join Date
    Mar 2021
    Posts
    207
    Quote Originally Posted by Jose_LSX View Post
    INJ.jpg

    I am about to update my 25lbs multec injectors to the 50lbs delphi (12613412) but comparing files that people share in the forums I have seen that in the limits section in the minimum pulse of the injector and the default injector pulse they put the same values. Is this correct or is the configuration you share recommended?
    Either way it will work fine. I have run it both ways. Just make sure the injector offset, flow rate, and short pulse adder are correct. It's more critical to make sure it matches your fuel system type (return style - vacuum referenced/returnless dead headed).
    2001 Silverado 5.3 - 209/217 cam, GT45 Turbo on 7lbs, Aem x-series wideband, 50lb/hr flex fuel injectors, on E85 with content sensor

    1999 Silverado 6.0/4L80E Summit Stage one camshaft, 317 heads (replaced cast iron)

  6. #6
    Potential Tuner
    Join Date
    Apr 2023
    Posts
    7
    Quote Originally Posted by Matt Vardaman View Post
    Either way it will work fine. I have run it both ways. Just make sure the injector offset, flow rate, and short pulse adder are correct. It's more critical to make sure it matches your fuel system type (return style - vacuum referenced/returnless dead headed).
    Okay thnks

  7. #7
    Found this post doing a search on these injectors. Just wanted to post and say THANK YOU to Blindsquirrel for posting up those 2 tune files. That is a LIFE SAVER in more ways than you know. Thank you! Thank you! Thank you!

  8. #8