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Thread: First time calc.vet attempt, I have issues

  1. #11
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    If you get a chance can you take a look at the MAF map? It might just be bad information but when I do a paste-multiply into the MAF table of the tune, it drops the curve to nearly a straight line instead of a slope from low to high.

    I will try to do a better log tomorrow.
    71 Chevelle, LS1/4l60e, EPS 230/238 113+2, hand ported 799s, ported Fast 90/90, Doug's headers, 3.42 12 bolt

  2. #12
    Joe (Moderator) joecar's Avatar
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    For the MAF table:
    - did you create the map axis's by doing Paste Labels from B5001...?
    - are you using SELBEN as the map data...?
    - are you using MAFFREQ on the row axis...?

    (you can use any logged pid as the column axis)

    Post a pic of your MAF map.

  3. #13
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    I will double check all of those parameters again. If it's still incorrect I will try building the map again and closing and restarting the program. If it still doesn't seem correct I will post a picture.


    Do I need to take any special considerations since I installed 41# Bosch injectors from a supercharged 3.8? I already used information from this forum to recalibrate the injector flow rate table and my part throttle/cruise must be close because the wideband gets stoic and the ltft are -5% to 0% at cruise.

    WOT, the wideband reads fat at 11.5 on the initial hit and from there it goes to low 11s by ~6000rpm.
    Last edited by thunderstruck507; November 9th, 2011 at 04:57 AM.
    71 Chevelle, LS1/4l60e, EPS 230/238 113+2, hand ported 799s, ported Fast 90/90, Doug's headers, 3.42 12 bolt

  4. #14
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    Well checked everything and tried it again, this time it looks like a curve so I guess it was a fluke or I did something wrong pasting/multiplying last night.
    71 Chevelle, LS1/4l60e, EPS 230/238 113+2, hand ported 799s, ported Fast 90/90, Doug's headers, 3.42 12 bolt

  5. #15
    Joe (Moderator) joecar's Avatar
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    Thunder, post a screenshot of the MAF map so I can see what you saw.

  6. #16
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    I didn't change any settings, just made sure the filters were applied and re-pasted with multiplication.

    I think either I had forgot to apply the filter or it wasn't multiplying when I was pasting. I'm getting the hang of things a little more.
    71 Chevelle, LS1/4l60e, EPS 230/238 113+2, hand ported 799s, ported Fast 90/90, Doug's headers, 3.42 12 bolt

  7. #17
    Joe (Moderator) joecar's Avatar
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    Ok, that looks correct (all values are in the vicinity of 1.00).

  8. #18
    Joe (Moderator) joecar's Avatar
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    To make the MAF map narrower, in the map properties goto the Cells tab and checkmark Constrain Cell Size.

  9. #19
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    Did a long drive with a lot more driving conditions. Seemed to go pretty well. The new map has a couple small spikes and I smoothed them some but I'm through for the day.

    Here's the tune file that resulted:

    Well I can't get it to upload, keeps saying "error #2038". Tried saving a copy as a different name and it won't upload either
    71 Chevelle, LS1/4l60e, EPS 230/238 113+2, hand ported 799s, ported Fast 90/90, Doug's headers, 3.42 12 bolt

  10. #20
    Joe (Moderator) joecar's Avatar
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    Try uploading tomorrow.

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