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Thread: 5.3 first attemp at a tune may need some adult supervision

  1. #41
    Tuner Redtruck1's Avatar
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    Stoich AFR (E10) 14.07560/12.5 = 1.126048

    sorry added wrong file
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    Last edited by Redtruck1; 10-29-2014 at 09:39 AM.

  2. #42
    Advanced Tuner Cyrperformance's Avatar
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    From what I have read 14.1 to 14.2 is good for E10, it looks like you are very close.

    2006 Escalade LMM Duramax Tuned
    2000 S10 Twin Turbo 6.0L
    56 GMC 100 Status Unknown

  3. #43
    Tuner Redtruck1's Avatar
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    Cyperformance, ElecTech, 5FDP will you look at my file and see ware the holes may be, when their is a spare time. your time has been invaluable to me, humble thanks.

  4. #44
    Tuning Addict 5FDP's Avatar
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    You can put 1.126 for the EQ ratio (gas) under PE, that should work just fine.


    But what happened to your MAF table, why is it so jagged??

    It should be a smooth slope. I would put that back to stock if I was you.
    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.

  5. #45
    Advanced Tuner Cyrperformance's Avatar
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    Also look at your injector data and compare to stock file in the repository.

    2006 Escalade LMM Duramax Tuned
    2000 S10 Twin Turbo 6.0L
    56 GMC 100 Status Unknown

  6. #46
    Tuner Redtruck1's Avatar
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    Cyperformance can you elaborate a little on the injection system I need to look at. Do you mean Flow rate, offset, pulse corrections, limits or injection timing? The cam specs are as follows
    Intake duration 227
    Exhaust duration 239
    Lobe separation 108
    Intake open BTC 5.5
    Intake close ABC 41.5
    Exhausts open BBC 47.5
    Exhaust close ATC 11.5
    Degrees overlap 17
    Do I need to change the boundary or the flow rate, pulse limit ?

  7. #47
    Advanced Tuner Cyrperformance's Avatar
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    If they are the stock 5.3 injectors, when you do a compare in the editor you will see the differences under the fuel tab where all of the injector data as you mention sits. For example the flow rate vs volts table should a rise in the rates as the table values increase, where as yours stay a constant 23 something, which would be okay if you had a return line. My stock injector table is something like 22 at the bottom or left, and rises to I think like 28 (return less fuel system). Go to the repository and download a stock 5.3 file and do the compare feature to see, just make sure you don't license that download file. You will see the other tables as well.

    2006 Escalade LMM Duramax Tuned
    2000 S10 Twin Turbo 6.0L
    56 GMC 100 Status Unknown

  8. #48
    Tuner Redtruck1's Avatar
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    compare feature is so cool thanks for the tip

  9. #49
    Advanced Tuner Cyrperformance's Avatar
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    Very cool indeed, you can download any HPT file and use it to see what things certain tuners have changed and do research on what those changes effect, etc etc. Also can use it to see changes in your tune files that have been saved after changes.

    2006 Escalade LMM Duramax Tuned
    2000 S10 Twin Turbo 6.0L
    56 GMC 100 Status Unknown

  10. #50
    Advanced Tuner Cyrperformance's Avatar
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    How is the tuning coming? Did the stock injector data help?

    2006 Escalade LMM Duramax Tuned
    2000 S10 Twin Turbo 6.0L
    56 GMC 100 Status Unknown

  11. #51
    Tuner Redtruck1's Avatar
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    It idles so much better little sluggish cold start up but think will improve with more start ups. The truck runs better after some heat gets in the engine. I had no idea I had so much missing data in my tune the comparison help a bunch will know more with test drive today. will tackle trans tune next we are so much closer then we were a week ago good tips. It has miss fire codes now but seems to have left after I bumped the idle up to 950.

  12. #52
    Advanced Tuner Cyrperformance's Avatar
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    Glad to here it's going better. Good feeling when it starts coming together.

    2006 Escalade LMM Duramax Tuned
    2000 S10 Twin Turbo 6.0L
    56 GMC 100 Status Unknown

  13. #53
    Tuner Redtruck1's Avatar
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    I know big cams are not good at idle my TPS is at .71 and my IAC counts are 140 it is cable driven is their any truth to opening the hole in the throttle plate to reduce the TPS and IAC.

  14. #54
    Advanced Tuner Cyrperformance's Avatar
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    I have seen a couple of guides instructing to do that, I personally do not believe in that method and have seen first hand where big cams idle exactly how they should just with the correct tuning. There are several idle tuning guides specific for bigger cams and not drilling the throttle blade or body. Research into "big cam idle tuning", you will come across the correct one.

    2006 Escalade LMM Duramax Tuned
    2000 S10 Twin Turbo 6.0L
    56 GMC 100 Status Unknown

  15. #55
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    i edited your tune file based on the fact that you have stock injectors

    here you go..
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  16. #56
    Tuner Redtruck1's Avatar
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    cesar thanks for the help I will let you know how she reacts to the enhancements.

  17. #57
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    You are correcting for your E10 by reducing your stoich to 14.07 but you are still setting equivalency ratio to command 12.5 afr. If you were running straight gas 14.68 and targeting a 12.5 afr under pe that would be ok. But you are running e10 which should be corrected for in equivalency ratio settings as well. 14.68/1.17=12.5 afr. 14.07/1.17=12.0 afr these settings should both end up providing the same results if one tank had straight gas and another had e10. It is much easier to understand correcting for fuel if you understand and use lambda rather than afr.

  18. #58
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    I would also add that here in Washington state I have found our up to 10% ethanol is really about 7% ethanol so I set my stoich to about 14.2.

  19. #59
    Tuner Redtruck1's Avatar
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    The truck runs and drives great at this time. It started having a P0121 TPS performance code after checking power grounds and scoping on my vantage pro found small glitches or drop outs of the TPS. Replaced the switch it corrected the drop outs but the P0121 still happens. The truck sets this code if the map signal is skewed if it is unusually low or high. With this larger cam the map signal is skewed one of the conditions for running this code is The MAP reading is less than 55kpa for a TPS skewed high test. With this cam the readings at idle is around 70kpa is there a chart that can be changed to make the skewed high test better match this cam?

  20. #60
    Tuner Redtruck1's Avatar
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    Figured it out no CEL and runs great. I am looking for a wide band o2 tool does anybody have an idea the name of the good ones?