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Dragy GPS Times

Discussion in 'Model 3: Driving Dynamics' started by gilscales, Aug 1, 2018.

  1. gilscales

    gilscales Member

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    I seen a video of someone who posted 4.7 on a LR model 3, mine did not seem that fast to me so I tested it out
    went 0-60 9 times and best I could get was a 5.19 with no a/c on and a 86% soc (19" sport wheels), many people have commented on the off the line performance being nuetered after a certain software update, seems that may be so?

    on another note I did one full stop just to see what I would get and it was 130 ft. so right as advertised
     
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  2. Arpe

    Arpe Member

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    Is dragy with or without 1 ft rollout?

    I am pretty sure the posted 4.7 sec was with 1 ft rollout. Could explain some of the difference.
     
  3. gilscales

    gilscales Member

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    The other poster also used Dragy

    results around the 1:50 mark
     
  4. Funkmobile

    Funkmobile Member

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    Dragy does not calculate 1ft rollout.
     
  5. Knightshade

    Knightshade Active Member

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    Clarification

    It does actually, for distance measures (1/8 mile, 1/4 mile, etc)

    It does not for speed measures like 0-60
     
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  6. Funkmobile

    Funkmobile Member

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    That's pretty weird that they'll do it for 1/4 mile but not 0-60.
     
  7. Knightshade

    Knightshade Active Member

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    Apparently it’s to reflect how nhra timing works for distance times at tracks
     
  8. Cass1234

    Cass1234 Member

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    The 4.7 draggy was in April before the unconfirmed nerf that many people reported.
     
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  9. chinnam3

    chinnam3 Member

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    I did feel the difference right after firmware update, then started searching forums to see if my car has issue, but it seems many folks felt sameway about Nerfing. I am not saying Tesla did it intentionally. May be this was results of some traction control logic tuning, but I think something changed on how it pulls esp from 0-30.
     
  10. gilscales

    gilscales Member

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    My results, tried to post them earlier but for some reason they did not go through. fullsizeoutput_ed0.jpeg fullsizeoutput_ed0.jpeg
     

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  11. Daniel in SD

    Daniel in SD Active Member

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    So,
    0-10 0.75s
    10-20 0.83s
    20-30 0.80s
    30-40 0.82s
    40-50 0.88s
    50-60 0.91s

    Why does everyone say it's soft off the line? Looks like a flat torque curve to me slightly tapering off when it hits the power peak.
     
    • Informative x 2
  12. jamnmon66

    jamnmon66 Member

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    It's a "butt dyno" thing. I don't have any hard data but it doesn't really put me back in the seat until 10-15mph(ish).
     
  13. brianman

    brianman Burrito Founder

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    Perception isn't linear here?
     
  14. Thud

    Thud Member

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    That's your brain messing with you. I get the same feeling in my Model S 85, it seems to pick up around 25mph. But videos of my speedometer during a 0-60 sprint don't support that- just pure, linear acceleration.

    It's the combination of things moving faster in your visual field (combined with the existing acceleration) that convince you it's going faster. Try getting somebody to do a 0-60 run with you in the passenger seat, but close your eyes and see if you can tell if the car "picks up."
     
  15. Daniel in SD

    Daniel in SD Active Member

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    #15 Daniel in SD, Aug 2, 2018
    Last edited: Aug 2, 2018
    One theory I have is that some people are used to ICE acceleration which drops off dramatically when the transmission shifts from 1st to 2nd gear. There is no drop off in a Tesla so it's especially powerful relative to ICE in the 30-45mph range (before it hits the power limit).
     
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  16. jamnmon66

    jamnmon66 Member

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    Reasonable. Hard to argue with the data above.
     
  17. gilscales

    gilscales Member

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    More Data 1/8 and 1/4 mile fullsizeoutput_f26.jpeg fullsizeoutput_f25.jpeg
     
    • Informative x 1
  18. Jedi2155

    Jedi2155 Model 3 has Arrived.

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    I see a clear ramp up in acceleration up to maybe 10 MPH based on your most recent charts. Interested in seeing a similar chart from a P3D or 3D.
     
  19. gilscales

    gilscales Member

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    You are reading the this wrong, last 2 posts are of 1/8 mile and 1/4 mile runs and are not 0-60 runs, based on my comparison of 24.8 to 28.1 software there is no difference in acceleration.
     
  20. Jedi2155

    Jedi2155 Model 3 has Arrived.

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    Ah, was not aware Dragy was doing a post-processing on the data. I heard that all the acceleration "rumors" are simply that and there has been no actual change in firmware.
     

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