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Thread: Injector data help

  1. #1
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    Injector data help

    Can anyone point me in the right direction to the injector data file for GM 12613412 injectors to change the tables in HPtuners?
    I have a base tune that got my swap running but I have a Sloppy stage 2 cam and these larger injectors with a TBSS intake.
    The data I found is not correct or so it seems, as the car will die after coming off high idle.

    Thanks for any and all help

  2. #2
    Advanced Tuner dhoagland's Avatar
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    Total guess here...
    Find what vehicle those injectors come in stock. Go to the Tune repository, download a tune for that vehicle and compare the injector tables.
    Do you have a Wideband? If so what is your AFR? If its in a reasonable range you might want to look else where...

    Also
    You will get much better responses here (from people much more knowledgeable than I am) If you post all info on your vehicle and post up a tune for them to look at.
    2011 Camaro 2SS Convertible L99 Bone Stock for now
    2003 Dodge 2500 5.9 Cummins QC 4x4. Airaid, 2nd Gen Intake, Grid Heater Delete, D-Tech 62/65/12, Magnaflow. Bully Dog: Propane Injection, Triple Dog W/Outlook Crazy Larry. Edge EZ, BD Flow-Max, 48RE: Sonnax Sure Cure/Transgo combination, Derale turbulator, billet input, Triple Disc, Super servo, 4 ring Accumulator. :beer

  3. #3
    Tuning Addict 5FDP's Avatar
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    Find a stock tune with those injectors. So like a express van or savanna van that came with those 50lb/hr injectors. A flex fuel heavy duty truck would be okay as well.

    Then you need to put that data into a spreadsheet to convert the LS3 injector data into the LS1 format. You posted in the GEN 3 section so I assume this is what you require.
    Attached Files Attached Files
    2016 Silverado CCSB 5.3/6L80e, not as slow but still heavy.

    If you don't post your tune and logs when you have questions you aren't helping yourself.

  4. #4
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    Thanks guys, I will work on updating the post with all the data and my tune file. I was able to find what I thought was the converted injector data from the lt1 site, but plugging that data in, still netted the same stuttering idle/shutdown results.

  5. #5
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    Quote Originally Posted by 5FDP View Post
    Find a stock tune with those injectors. So like a express van or savanna van that came with those 50lb/hr injectors. A flex fuel heavy duty truck would be okay as well.

    Then you need to put that data into a spreadsheet to convert the LS3 injector data into the LS1 format. You posted in the GEN 3 section so I assume this is what you require.
    I can't view the attachment you sent

    Sorry i just couldn't view it on my phone, works fine from the laptop
    Last edited by Nova_4951; 12-18-2020 at 01:04 PM.

  6. #6
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    Thanks again guys

    I have attached the tune that is working in the car but is rich and stalls at stops. It looks to have 24lb injector data in it. I am running the GM 12613412 injectors and either cant get the correct data for them or the data wont work with the tune.

    My swap specs are as followed:

    69 Nova
    LQ9 Swap

    Sloppy Stage 2 Cam'
    Pac 1218 Springs
    Longtube headers
    TBSS intake w/78mmTB
    TH350 W/3500Stall


    Thanks for any help guys
    Attached Files Attached Files

  7. #7
    Tuning Addict 5FDP's Avatar
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    Did you use the spreadsheet?

    Copy the 50lb/hr injector data into the spreadsheet and it will convert it for you. Then paste that data into your tune.

    The MAF and VE will be a ton of work, they don't look good and your are asking for way too much timing on a 6.0 with a camshaft. It doesn't need 31 degrees of timing, maybe more like 25-28 degrees.
    Last edited by 5FDP; 12-18-2020 at 08:46 PM.
    2016 Silverado CCSB 5.3/6L80e, not as slow but still heavy.

    If you don't post your tune and logs when you have questions you aren't helping yourself.

  8. #8
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    Quote Originally Posted by 5FDP View Post
    Did you use the spreadsheet?

    Copy the 50lb/hr injector data into the spreadsheet and it will convert it for you. Then paste that data into your tune.

    The MAF and VE will be a ton of work, they don't look good and your are asking for way too much timing on a 6.0 with a camshaft. It doesn't need 31 degrees of timing, maybe more like 25-28 degrees.
    I will try that when I get off shift tomorrow and report back. Any tips on what I can do with the MAF and VE tables?

    Thanks for your help

  9. #9
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    Quote Originally Posted by Nova_4951 View Post
    I will try that when I get off shift tomorrow and report back. Any tips on what I can do with the MAF and VE tables?

    Thanks for your help
    man went thru the same shit found 6 tunes all different all the values..
    sio i wne thru all 6 programs and averaeaged allt he file s and used them

    so now i need to find those files./.arghh
    Attached Files Attached Files

  10. #10
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    worse can i can send u my tune

  11. #11
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    here ya go..
    yowillhave to look thru and you can figure out hwat values i used.. put allthe values in form all the sources i foundBook1.xlsx

  12. #12
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    thank you tnbubba. I'll get busy on it today

  13. #13
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    Trying to find this injector spreadsheet. Have been using search with no luck. Thanks