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  1. Thread: Big cam idle A/F

    by brh26
    Replies
    23
    Views
    21,075

    Anyone know the formula to calculate injector boundary?

    Hi,
    I have tried several settings of the boundary on the older pcm.
    Does anyone know what the formula is to calculate the correct boundary for a cam? I have a 224/228 114 .581
    thanks
    Brian
  2. Replies
    4
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    2,203

    air leak

    Your LTFT's are very high. +25 which is what your log is showing, indicates you may have an air leak somewhere. Check the hoses/vacuum lines and manifolds.
    Cheers
    Brian
  3. Thread: Problem with SD

    by brh26
    Replies
    2
    Views
    1,694

    scanner issue

    Try reading this thread. http://www.hptuners.com/forum/showthread.php?t=10056
    I think you will have to remove the Maf airflow from the .cfg file to get the correct display.
    :cheers:
  4. Replies
    10
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    4,980

    IAT multiplier for VE

    Can someone tell me if this is still on the to do list or is it done for the 1 bar SD option?
  5. hot idle surge

    Did you notice if the fan(s) or AC are turned on when you get the hot idle surge? If so, think about increasing the idle rpm. I have seen the AC cycle(loud clicks can be heard) on and off and it...
  6. Replies
    1
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    1,634

    Traction Control to remain on in SD mode

    In the late model Commodores, switching to SD mode by setting Maf Fail Frequency to 0 disables Traction Control. Can we have a workaround for this?
    Thanks
    Brian
  7. Replies
    109
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    152,207

    non-linear regression analysis

    carneb,
    I sent you a couple of pm's. I ahve been dabbling in the mystic arts of non-linear progression trying to follow your process to date. It looks good.
    However, as you said it is...
  8. Replies
    109
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    152,207

    smoothing available in HPT?

    I can't see why existing HPT smoothing filters in VCM Editor couldn't be applied to correct the table and then apply AFR % Error then reapply as we do now.
    Chris is this possible?

    Brian
  9. Replies
    109
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    152,207

    VE fuelling feature

    I worked out how to smooth the transitions on the graph(at least). Now to try it in the real world. Does this mean this could be a feature in V2.1.16 for histograms and PID's in the scanner at...
  10. Replies
    109
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    152,207

    SD coefficient to tweak

    Chris, Given the formula and the size of the numbers, is it logical to say the Constant Coefficient is the main table to tweak in small increments? Also, can DOD be enabled on the L76 using the...
  11. Replies
    109
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    152,207

    Manifold Switch Open/Closed

    Hi Chris,
    I understand the multi-dimensional matrix for zone mapping for a VE table equivalent. Your explanation is pretty clear. Can you clarify for me what the difference is for the "manifold...
  12. Speed Density VE with IAT multipier

    This thread may help a little. I hope it is on the list for 2.1.14..:pray:
    http://www.hptuners.com/forum/showthread.php?t=5181
    cheers
    Brian
  13. Replies
    8
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    3,431

    reading -100

    When the histogram is displaying -100 it means the data was "dropped (packets)." There was an old thread on this somewhere. Flashing a new tune in won't change the data transfer. It would be just...
  14. Replies
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    4,980

    SD tuning VE table Modifier

    I am seeing IAT's up to 85 degrees Celsius on some cars on hot days here. Any chance of getting a VE modifier for us "Brazilians"?
  15. Replies
    3
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    2,385

    TCC Settings

    If you mean "Shift Lock" for locking during shifts..... leave it disabled

    :cheers:
  16. Replies
    3
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    2,385

    TCC settings

    G'day,
    I had a look at your TCC settings. You would be getting TCC locked down to low speed in Normal and Cruise modes? Your Power mode settings are such that the TCC doesn't lock up at all. I use...
  17. Replies
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    3,502

    285 M6 Clubby tune

    G'day,
    I can send you a stock 04 M6 tune. What's your email address?
    Brian
  18. Replies
    4
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    2,930

    TQ removed

    I have a stock A4 2004 Commoodre tuned mafless with 2500 stall and 3.91 gears. I removed all TQ reduction. The only issue I have had with shifts was when I didn't match the commanded shift tables for...
  19. Replies
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    IAT based VE multipier table

    I have found an IAT-based VE table mutliplier would be of benefit to me here in Oz with mafless tuning. I believe we have summer and winter fuel and my LTFT's move to a leaner state in the hot parts...
  20. Replies
    13
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    7,204

    VE table adjustments

    Hi,
    welcome to the black art of tuning!
    The VE table adjustments tend to work in blocks. What this means is, that adjacent cells influence one another. In general, if you have a value of +10 in a...
  21. Replies
    6
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    4,380

    entire reflash

    You say you have accessed the PCM and can read it. Presumably you have a hpt version of his tune. If so, you can put his tune back into the PCM at any time. There is however the risk of a flash...
  22. Replies
    3
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    2,074

    Reset Fuel trims

    G'day, welcome to the board.
    No, taking your time do make changes will not make any difference. It is the sensible approach.
    Make sure you make small adjustments at a time. If you do this, you...
  23. Replies
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    4,242

    The words below are from Chris in another thread...

    The words below are from Chris in another thread about the same topic;

    "the trans takes time to shift, this is especially noticeable in 1st gear since the engine is accelerating so fast. In some...
  24. Replies
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    1,665

    LM Programmer

    You might want to check the InnovateMotorSport forum. I remember reading something similar and they were going to look into it.
  25. Thread: DFCO

    by brh26
    Replies
    15
    Views
    11,272

    dfco enable

    Oztrack, Yes I have increased the DFCO entry rpm. Not a big change but I am taking things slowly. I have seen an improvement in fuel economy in my A4 with 3.91 gears of approx 1l/100km on the highway...
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