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  1. Replies
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    Interesting. Can you define "long term"? ...

    Interesting.

    Can you define "long term"?

    I've personally run my Sprintex Wrangler on over 10psi with quite a bit of towing for over 40,000kms and the pistons are still in it.
    All the stock...
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    This still should have not happened on a good...

    This still should have not happened on a good tune. 13psi is nothing for the stock internals on these.
    I've seen just over 18psi on a few penta's and the stock internals have held up well.
    Not...
  3. Oh you managed to find a solution? Care to share?

    Oh you managed to find a solution? Care to share?
  4. 2013 Challenger Sprintex 3.6 WOT Delay vs 2018 Challenger Sprintex 3.6 WOT Delay

    I'm currently tuning two Challenger 3.6's with Sprintex SPS kits on them and cannot get rid of the significant delay to WOT on the 2013 (in comparison to the 2018).
    Both have the same tuning...
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    Don't see an issue in your log. Your "accelerator...

    Don't see an issue in your log. Your "accelerator pedal position sensor" is hitting 3.83V and your "throttle position sensor" hits 3.80V very shortly after.
    These are maximum values on FCA systems...
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    I hope you understand that if it was tuned with...

    I hope you understand that if it was tuned with the NN enabled, then the tune will most likely be wayyyyyy off if you just simply disable the NN.
    Disabling the NN will require a lot of work with the...
  7. Thread: Tuning HELP

    by HaasExp
    Replies
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    949

    What's you wideband reading at the stumble and...

    What's you wideband reading at the stumble and directly after it?
    Do you have a log with the wideband readings?
  8. Yes, on every 3.6 I've tuned. There seems to be...

    Yes, on every 3.6 I've tuned. There seems to be some Catalyst warm up timing tables that are missing in HP tuners.
  9. Replies
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    I believe the actual x-axis should be...

    I believe the actual x-axis should be "Accumulated airmass", which would make much more sense in regard to wall-wetting etc. This is logable parameter in the later Beta versions of the scanner.
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    You can add additional filters such as & ECT>80C...

    You can add additional filters such as & ECT>80C or something like that so it only grabs the data once warm.

    Strange that you are still getting decel data when you have filtered out the pedal...
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    Here the example of my OL error filter: 133001 ...

    Here the example of my OL error filter:
    133001

    [6065] is the EQ commanded channel ID and [3203.10] is the relative accelerator pedal voltage channel ID in my particular case.

    Now don't just...
  12. What does the DC drop from and to? Probably...

    What does the DC drop from and to?
    Probably best to log individual injector PW's (at high polling rates) because the fuel cut strategy might cycle the cut between cylinders.
    Thus, the lower DC...
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    I filter OL by only using the data when FA...

    I filter OL by only using the data when FA enrichment is > 0 and when the relative accelerator pedal is > 1.0V.
    Now you can use the EQ Commanded < 1.0 to define OL but this parameter has a much...
  14. Fuel cut is just that, 100% fuel cut eg no fuel...

    Fuel cut is just that, 100% fuel cut eg no fuel at all.
    No fuel = no fire = no damage from boost or timing.
  15. Replies
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    2,320

    Changing stoich will just skew the fuel trims...

    Changing stoich will just skew the fuel trims during closed loop but the vehicle will always target lambda 1.0 using the narrowband O2 sensors.
    However, once it's in open loop, then the stoich...
  16. Replies
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    Yes the reported cat temps are...

    Yes the reported cat temps are modelled/calculated which are heavily based on the "catalyst temperature" table.
  17. In order to receive more useful replies/help its...

    In order to receive more useful replies/help its best to post up an accompanying datalog (with a wideband o2 trace) with your tunes.
  18. Thanks for clearing that up mate. That now makes...

    Thanks for clearing that up mate. That now makes perfect sense.

    From my limited knowledge, I have been under the belief that all manufacturers stuck with the flow "slope" in the linear region and...
  19. Thanks for chiming in Greg! Great info as...

    Thanks for chiming in Greg!
    Great info as always.

    A few questions to see where I went wrong and to try and improve my understanding of the subject if I may.



    I assume you are talking about...
  20. Yes you can. If anything they add to the safety...

    Yes you can.
    If anything they add to the safety margin as they will read a slightly leaner post cat than precat. For example: if you tune to lambda 0.85 with the WB after the cat, it would actually...
  21. Just posting your tune alone wont yield anything...

    Just posting your tune alone wont yield anything really useful as it does not tell you anything about how the engine is actually running.

    You need accompanying datalogs with the appropriate PID...
  22. Converting GM Bosch Injector Data to Dodge Format

    The injectors in question is the Bosch 0280158187 (52lb/hr @ 58psi), which are commonly used in the Sprintex SPS supercharger kits on Pentastar 3.6's.
    I'm unsure where Sprintex gets their injector...
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    That has to be some weird NGCx ECU logic right...

    That has to be some weird NGCx ECU logic right there. Does not seem to do that on the GPECs, which I assume is the ECU in question.
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    That makes sense as the MBT map actually "caps"...

    That makes sense as the MBT map actually "caps" the maximum allowable timing advance. You will need to increase the MBT map at that rpm/load cell (and surrounding cells) to allow the timing to reach...
  25. Either that or the sensor is fubar. Try swapping...

    Either that or the sensor is fubar. Try swapping sensors bank to bank and see if the problem follows or not.
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