Page 2 of 2 FirstFirst 12
Results 21 to 25 of 25

Thread: MAF questions. Hot vs Cold weather

  1. #21
    Advanced Tuner
    Join Date
    Jul 2013
    Location
    Clear Lake tx
    Posts
    423
    yeah ill give it a shot today. its sweltering out here today so getting some results should be fairly easy. thanks for your help

    BTW sorry Jarron for jacking your thread, maybe this can help both of us out
    Last edited by JBZ; 06-15-2016 at 03:36 PM.
    2010 CTS-V A6, Airaid CAI, 2.4 pulley, ported ls7 throttle body, ID850s, ARH 1-7/8" headers and X pipe, TR7IX plugs, MSD wires, Elite catch can, ZL1 lid and Track Attack HX

  2. #22
    Senior Tuner 10_SS's Avatar
    Join Date
    Mar 2012
    Location
    Detroit, MI
    Posts
    1,320
    The 2009 ZR1 and 2012 CTS-V tune I looked had similar decreasing values starting at 104F, by 194F it is 0.943 The ZL1 tune I have is 1's all the way across. Strange.
    2010 Camaro LS3 (E38 ECU - Spark only). MS3X running complete RTT fuel control (wideband).
    Whipple 2.9L, 3.875" Pulley, kit injectors, supplied MSD Boost-A-Pump, stock pump
    LG Motorsports 1 7/8" Headers - No Cats, stock mid pipe with JBA Axle Back
    ZL1 Wheels/Tires

  3. #23
    Advanced Tuner
    Join Date
    Jul 2013
    Location
    Clear Lake tx
    Posts
    423
    Quote Originally Posted by 10_SS View Post
    The 2009 ZR1 and 2012 CTS-V tune I looked had similar decreasing values starting at 104F, by 194F it is 0.943 The ZL1 tune I have is 1's all the way across. Strange.
    all things being equal the ZL1 and V file should be the same. was the Zl1 file you had modified? did it have ID850s or something and some tuners know that this should not be applied.

    BTW update. I have changed it but not to all 1's I just increased any value that was lower then 1 up just to see how that affects things.
    2010 CTS-V A6, Airaid CAI, 2.4 pulley, ported ls7 throttle body, ID850s, ARH 1-7/8" headers and X pipe, TR7IX plugs, MSD wires, Elite catch can, ZL1 lid and Track Attack HX

  4. #24
    Tuner in Training
    Join Date
    May 2016
    Location
    Salt Lake City
    Posts
    49
    Quote Originally Posted by schpenxel View Post
    Haha, oops. Well, there ya go... here's what mine looks like. Shouldn't be too bad to adjust it a little further as needed on yours

    Attachment 59912
    Do you know if on that table between 80-100 degrees it averages the number if your IAT's are in the middle? say 90?

    or does it not activate til it hits the exact number on the table?

    Ive noticed that even 90-70's I see a .4 difference in my AFR. I swear the Maf should be account for small temp changes like this shouldnt it?
    2006 Corvette, PRC LS3 66cc Heads, LS3 intake, Vararam, ls7 cam, LS7 full exhaust

  5. #25
    Moderator
    Join Date
    Mar 2014
    Location
    Raleigh, NC
    Posts
    6,343
    It should interpolate between values it has. So 95* would be right in the middle and have a value of 0.99 for example
    Post a log and tune if you want help

    VCM Suite V3+ GETTING STARTED THREADS / HOW TO's

    Tuner by night
    CPX Tuning
    2005 Corvette, M6
    ECS 1500 Supercharger
    AlkyControl Meth, Monster LT1-S Twin, NT05R's
    ID1000's, 220/240, .598/.598, 118 from Cam Motion

    2007 Escalade, A6
    Stock