Results 1 to 18 of 18

Thread: VVE tuning C7Z

  1. #1
    Advanced Tuner
    Join Date
    Jun 2007
    Location
    Close to my Z06
    Posts
    271

    VVE tuning C7Z

    How many have VVE tuned their C7Zs?? What is needed for the initial setup ??

  2. #2
    Senior Tuner Higgs Boson's Avatar
    Join Date
    Mar 2010
    Location
    Texas Hill Country
    Posts
    3,299
    its the same as tuning any other VE table regarding process. All the information you need is posted already. Have you read it all and now have specific questions or are you looking for a tuning guide?

  3. #3
    Advanced Tuner
    Join Date
    Jun 2007
    Location
    Close to my Z06
    Posts
    271
    Just a quick guide

  4. #4
    Advanced Tuner
    Join Date
    Jun 2007
    Location
    Close to my Z06
    Posts
    271
    Have you VVE tuned your car???

  5. #5
    Tuning Addict 5FDP's Avatar
    Join Date
    May 2012
    Location
    Rogers, MN
    Posts
    13,533
    Read this if you want to do it using fuel trims.

    http://www.hptuners.com/forum/showth...621#post416621

    Search around if you have more questions, a lot of the stuff is already covered in the VCM scanner section for setting stuff up.
    2016 Silverado CCSB 5.3/6L80e, not as slow but still heavy.

    If you don't post your tune and logs when you have questions you aren't helping yourself.

  6. #6
    Senior Tuner Higgs Boson's Avatar
    Join Date
    Mar 2010
    Location
    Texas Hill Country
    Posts
    3,299
    Quote Originally Posted by HNK View Post
    Have you VVE tuned your car???
    of course

  7. #7
    Advanced Tuner
    Join Date
    Jun 2007
    Location
    Close to my Z06
    Posts
    271
    Did you use the VE vs Trims or AFR?

  8. #8
    Senior Tuner Higgs Boson's Avatar
    Join Date
    Mar 2010
    Location
    Texas Hill Country
    Posts
    3,299
    Quote Originally Posted by HNK View Post
    Did you use the VE vs Trims or AFR?
    I use both constantly. Trims for VE can take literally forever. You must use a wideband for PE areas (heavy load and WOT). Trims are great for verification and part throttle/idle areas but trims can be wrong if you have cam and long tubes, etc throwing off the readings.

    It is best to use a wideband to tune your airflow models and then go back to closed loop and tune your closed loop system so the trims are where you want them without changing the airflow models again.

  9. #9
    Tuner
    Join Date
    Jun 2012
    Location
    Canada
    Posts
    154
    which sensor do you pick for gen 5. the vve virtual is rpm vs map/baro (pressure ratio) tried pressure ratio but does not seem to work

  10. #10
    Senior Tuner Higgs Boson's Avatar
    Join Date
    Mar 2010
    Location
    Texas Hill Country
    Posts
    3,299
    you need to make a pressure ratio calculation from map and baro

  11. #11
    Tuner
    Join Date
    Jun 2012
    Location
    Canada
    Posts
    154
    Quote Originally Posted by Higgs Boson View Post
    you need to make a pressure ratio calculation from map and baro
    Higgs Boson, first off I would like to thank you for your contribution to this forum, you and others have really help. as for pressure calculation, I failed math in my younger days lol. any idea how to go about it. should I open a ticket with HP to add the calculation.
    Cheers

  12. #12
    Senior Tuner Ben Charles's Avatar
    Join Date
    Aug 2009
    Location
    Calibrating
    Posts
    3,371
    Quote Originally Posted by obd2 View Post
    Higgs Boson, first off I would like to thank you for your contribution to this forum, you and others have really help. as for pressure calculation, I failed math in my younger days lol. any idea how to go about it. should I open a ticket with HP to add the calculation.
    Cheers
    Just do map/Baro... that gives you pressure ratio

    For instance a 1.4 pressure ratio is 140kpa (psi)/100 (sea level Baro)

    Email Tunes, [email protected]
    96 TA Blown/Stroked, 4L80E/Fab 9
    15 C7 A8 H/C 2.3 Blower/PI
    14 Gen 5 Viper
    Custom Mid Engine chassis, AKA GalBen C

  13. #13
    Senior Tuner Higgs Boson's Avatar
    Join Date
    Mar 2010
    Location
    Texas Hill Country
    Posts
    3,299
    Quote Originally Posted by obd2 View Post
    Higgs Boson, first off I would like to thank you for your contribution to this forum, you and others have really help. as for pressure calculation, I failed math in my younger days lol. any idea how to go about it. should I open a ticket with HP to add the calculation.
    Cheers
    its as ben says, the tool is in the upper menu called something like Math Parameters

  14. #14
    Tuner
    Join Date
    Jun 2012
    Location
    Canada
    Posts
    154
    will try tomorrow. looks like they have some predefined calculation

  15. #15
    Senior Tuner Ben Charles's Avatar
    Join Date
    Aug 2009
    Location
    Calibrating
    Posts
    3,371
    Quote Originally Posted by obd2 View Post
    will try tomorrow. looks like they have some predefined calculation
    I think they do now... haven't looked in awhile... guys like Higgs and I been doing t the "custom" PID way for awhile now

    Email Tunes, [email protected]
    96 TA Blown/Stroked, 4L80E/Fab 9
    15 C7 A8 H/C 2.3 Blower/PI
    14 Gen 5 Viper
    Custom Mid Engine chassis, AKA GalBen C

  16. #16
    Tuner
    Join Date
    Jun 2012
    Location
    Canada
    Posts
    154
    guys care to share some of those pids? tried it via datalog i have and does not seem to work. possibility is i did not log the correct sensors . these new PCM rock. i have been logging almost everything under the sun and logging performance never seem to be effected.

  17. #17
    Senior Tuner Higgs Boson's Avatar
    Join Date
    Mar 2010
    Location
    Texas Hill Country
    Posts
    3,299
    just log Baro and MAP in the channels. try to use native pids with the single blue arrow in the channel/pid selection box.

    go up to Math Parameters and make sure it's either pre-setup or set up the math for one in there with the exact same channel/pids you are using in the channel list.

    then you can set up a Graph and use Pressure Ratio as the Y Axis for logging with the same values as your stock table in the VVE Editor.

  18. #18
    Super helpful info. Thank you for posting this info. I was confused on the Y axis and this clears it all up for me