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Type: Posts; User: Shane Hewitt

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  1. Replies
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    As an experiment, richen it back up some. If...

    As an experiment, richen it back up some.

    If you're actual air/fuel ratios are in the ballpark of what you're commanding, my experience with LS & now with these LT truck engines is that they...
  2. I can't say if its related to your problem or...

    I can't say if its related to your problem or not, but have you tried putting the OE MAF curve back in it? The one in the tune provided is wildly different & not very "curve'ish".
  3. I would suggest putting your transmission upshift...

    I would suggest putting your transmission upshift torque management back to enabled. With that disabled your truck has no means of controlling engine output during the shift.
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    My Qstarz is a few years old, but at that time I...

    My Qstarz is a few years old, but at that time I just paired it out of the box and its performed perfectly.
  5. While I don't have a solution to offer...

    While I don't have a solution to offer (sorry....still wrapping my head around Gen V stuff), thought I'd throw an observation out there from looking at the provided scan.

    Looking at the 02...
  6. Thread: 1/4 mile

    by Shane Hewitt
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    3,354

    Just for clarity, did you have Track Addict...

    Just for clarity, did you have Track Addict running at the track when you made your 12.68 pass, or is this comparing your track time vs what you recorded with Track Addict on the street?
  7. Thread: 1/4 mile

    by Shane Hewitt
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    6
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    3,354

    Just bumping this up now that its been out for...

    Just bumping this up now that its been out for awhile to see if anybody has actual 1/4 mile track results to compare the app's results to. Now that I have a 10 hz GPS I'm pretty confident in its...
  8. Keeping my fingers crossed too!

    Keeping my fingers crossed too!
  9. Replies
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    3,521

    I've had no feedback on this at all. I have 2...

    I've had no feedback on this at all. I have 2 Malibu's that would commit to doing this if I could be certain it could be done, a '15 & a '16, however neither are at my disposal to tinker with.

    If...
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    Start/Stop

    64947

    I've had a surprising number of inquiries regarding disabling the start/stop feature in many new vehicles, so while cruising around in the above file investigating whether it is currently...
  11. Interested to hear the response to this as I have...

    Interested to hear the response to this as I have one of these on order also.
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    Interested to learn more about viewing third...

    Interested to learn more about viewing third party .csv files. I attempted to open some .csv I had exported with 2.24 but got and unable to open, incorrect file header warning.
  13. Thread: 1/4 mile

    by Shane Hewitt
    Replies
    6
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    3,354

    For what its worth, all the guys I work with have...

    For what its worth, all the guys I work with have downloaded it & have been playing with it. They have all been saying it is providing very consistent, repeatable times that are in line with what...
  14. Thread: 1/4 mile

    by Shane Hewitt
    Replies
    6
    Views
    3,354

    1/4 mile

    Wondering if anybody has taken Track Addict down the 1/4 mile?

    How accurate were the results?

    I did a quick run with my wife's car & the results it generated were what I would expect from her...
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    Surprised to see that the truck appears to be in...

    Surprised to see that the truck appears to be in closed loop the entire time its at WOT! (based solely on active STFT's and fluctuating o2 mv)
  16. I have no help to offer, but post up your...

    I have no help to offer, but post up your datalogs as you go. I have a co-worker with a 4.7 Dakota that has been inquiring about having me play around with his truck. I'd like to learn about what...
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    This software is an absolutely invaluable tool if...

    This software is an absolutely invaluable tool if you spend the time to get used to using it, & alter how you datalog your vehicle to make the software as accurate & repeatable as possible.

    In my...
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    I ask this as a legitimate question, not to be a...

    I ask this as a legitimate question, not to be a smart-ass......is the MAF installed facing the correct direction (screen towards the air filter)?
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    Do you have a known good (or new) MAF you can...

    Do you have a known good (or new) MAF you can throw on the truck? Judging by the dips in the MAF reading starting at 5:48.297 of your log, and by comparing your log to a bone stock 4.8 datalog I...
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    I remember reading a post years ago from the...

    I remember reading a post years ago from the HPTuner guys saying that the V6's have a parameter in the file that determines whether the VE tables were referenced or not.....can't find it right at the...
  21. Your fuel trims will be very close afterwards.

    Your fuel trims will be very close afterwards.
  22. As it is set up right now (AFR22.hpt), any time...

    As it is set up right now (AFR22.hpt), any time the conditions to enable PE are met the car is commanding an air/fuel ratio of 11.5:1, as none of the other adders are modifying that value....which is...
  23. Based on the assumption that you did these pulls...

    Based on the assumption that you did these pulls on the same stretch of road, it would appear you picked up 13'ish whp, so progress for sure.

    42301

    My experience with my own GTP taught me that...
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    Looks like the tune is commanding air/fuel ratios...

    Looks like the tune is commanding air/fuel ratios < 10:1 if you a on it for any length of time.....that would explain the 120% duty cycle. Once you alter that to something a little more reasonable &...
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    I ran into a similar prob. with another...

    I ran into a similar prob. with another j-body....different motor, but same symptoms.

    As an experiment, set your timing to something ridiculously low, that would have absolutely no chance of...
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