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Thread: Nissan 370Z Weird Tuning Issue

  1. #1
    Potential Tuner
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    Nov 2015
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    Nissan 370Z Weird Tuning Issue

    I'm having issues with mapping a 2011 Nissan 370Z (automatic transmission)

    So far I've been able to make changes to the MAF A and B calibration to
    adjust the fueling. But when I've adjusted the intake cam advance tables,
    the high and low detonation spark trim adjustment tables, as well as the
    VVEL main 1 and 2/VVEL max/VVEL duration WOT. I cannot see any results on
    the dyno as well as any change in the data logs. I've made logs and
    attached the calibrations for any one to review and shed light on the issue.

    Rev 114 is the original map with tweaks to the MAF calibration to get the
    fueling leaned out a bit. Other than this, the VVEL, VTC, and Timing has
    not been modified.

    Rev 115 - i've added 10 degrees of advance from the 80% load cell to the
    128% load cell and have interpolated between the 64% and 80% load to smooth
    out. The changes have been made to the "intake camshaft advance main"
    table. As you can see in the log labeled "Pull on rev 115" the difference
    in VTC shown has not changed since rev 114 despite the changes in the
    calibration

    I can provide logs of the car doing the same thing for the spark and vvel
    if required. But i feel it is pretty redundant. Has anyone experienced this odd behavior?
    Any help would be greatly appreciated

    Rev 114.hptRev 115 intake cam advance plus 10 degrees.hptPull on map Rev 114.hplPull on map Rev 115.hpl

  2. #2
    Tuner in Training
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    May 2019
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    hi i tune a infiniti g37 and happen the same, i move the timing and variable cam and doesnt give me any HP gain or lose, i think they are the wrong tables in the program (rom)

  3. #3
    Tuner in Training
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    May 2019
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    Maybe Evans from HPTUNERS can help here

  4. #4
    Senior Tuner SultanHassanMasTuning's Avatar
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    Nov 2009
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    Jeddah, Saudi Arabia
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    2,218
    guys in general i have been tuning Nissan for a long time, gains are minimal also a tip they like to be on the rich side especially higher loads

    your spark will be probably around 28/32 top end
    E-tuning/remote Tuning Sultan@mastuning.net Follow @MASTUNING Contact/Whatsapp +966555366161
    [URL="http://www.mastuningsaudi.com"]

  5. #5
    Tuner in Training
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    May 2019
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    I move every timing table and datalog give me the same number always and Dyno doesn?t gat any gain with timing i think something is wrong with tables, maybe is another address on the rom

  6. #6
    Quote Originally Posted by danny1058 View Post
    I move every timing table and datalog give me the same number always and Dyno doesn?t gat any gain with timing i think something is wrong with tables, maybe is another address on the rom
    Regarding timing, no there is not another address the tables are correct. Please reference the tuning guide covering this, this topic has been discussed already.

  7. #7
    Potential Tuner
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    Nov 2015
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    Evan,

    And insight regarding the VTC and VVEL changes not actually being applied??