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Thread: Acceleration Rate Math Parameter

  1. #21
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    This is the expression I use to infer Gs. 50020 is the vehicle speed sensor and the speed is in MPH

    [50020.114.slope(50)]*(0.45585)*2

    Cheers,

  2. #22
    Tuner in Training BadAquaBluSS's Avatar
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    Thank you for giving me the answer to this I?ve been racking my brain, I have taken a look at the drivability video for the tuning school and they use a parameter called miles per hour per second, however I think it?s an older version of the software, I?m about to see if I can leave a message for the guys at HP Tuners and see if they can add that unit back, however I set mine up the way you said I?ll be giving it a shot later on today got a bunch of things to do this morning, thanks again I really appreciate it .

  3. #23
    Quote Originally Posted by 07GTS View Post
    i dont know how much power u are running but any decent hp will get alot of wheel spin even if u cant feel it so it would be best to use undriven wheel speed, i always log both driven/undriven and am amazed at the difference sometimes
    This makes good sense to me. Where are you guys finding the 50020.110 and 13.114 numbers? And how can I locate the correct number for Undriven Wheel Speed?
    1998 Pontiac Grand Prix GTP (first 3800 FWD in the tens), 9.499 @ 145.13 mph
    1998 Pontiac Firebird (first 3800 RWD in the eights), 843 whp, 8.991 @ 152.12 mph, driven by Tim King
    1999 Pontiac Grand Prix GT (first 3800 FWD in the eights), 8.902 @ 154.90 mph, driven by Bob Cook
    2000 Pontiac Bonneville SSEi (first 3800 Bonneville in the twelves, elevens and tens), 10.711 @ 125.71 mph, driven by Ed Morad
    2008 Pontiac G8 (first G8 in the tens), 10.727 @ 129.87 mph
    2018 Cadillac ATS-V, 613 whp

  4. #24
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    Quote Originally Posted by Tapout Tuning View Post
    This makes good sense to me. Where are you guys finding the 50020.110 and 13.114 numbers? And how can I locate the correct number for Undriven Wheel Speed?
    if u go to your pid list and select sort by ID it will put them in there number order, or under speedometer u should see driven/undriven listed if yours supports it

  5. #25
    Tuner in Training BadAquaBluSS's Avatar
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    Thanks Hivel, I'll definitely give this a shot today.

  6. #26
    Tuner in Training BadAquaBluSS's Avatar
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    Quote Originally Posted by hivel View Post
    This is the expression I use to infer Gs. 50020 is the vehicle speed sensor and the speed is in MPH

    [50020.114.slope(50)]*(0.45585)*2

    Cheers,
    Appreciate your help on this, can you tell me what unit number you use?

  7. #27
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    I use gravitational units G. That is the same unit my G-meter uses. Here is a plot of Gs during 2-3 shift. Lots of wheel spin. It is the blurry red line. Click thumbnail to enlarge.
    CB9CD42B-471B-4C3C-8247-72FC5048DB1D.png
    Cheers,
    Last edited by hivel; 1 Week Ago at 11:44 PM.

  8. #28
    Tuner in Training BadAquaBluSS's Avatar
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    Thank you very much, I?m still trying to get it to work, I?ll let you know how it works out.