TMC is an independent, primarily volunteer organization that relies on ad revenue to cover its operating costs. Please consider whitelisting TMC on your ad blocker or making a Paypal contribution here: paypal.me/SupportTMC

Slow-motion video of a P85D on the quarter mile

Discussion in 'Model S' started by llavalle, Jun 5, 2016.

  1. llavalle

    llavalle Member

    Joined:
    Sep 9, 2013
    Messages:
    554
    Location:
    Somewhere around Montreal in Quebec, Canada
    Hey,

    Went to the local drag strip yesterday with a fellow forum member(Roadrunner13). I brought my 85D, he came with his P85D(he left his Roadster at home)

    I caught his best run of the night at 240FPS ([email protected])

    Here it is :



    And these were the other runs of the day :



    Enjoy ;)
     
    • Like x 4
  2. Roadrunner13

    Roadrunner13 Member

    Joined:
    Oct 16, 2013
    Messages:
    290
    Location:
    Montreal
    Talk about luck, the only run when llavalle was not running his 85D, he goes to sit in the stands with the girlfriends to film (or so he says) and it happens to be my best run of the evening! Thanks!!!
    Also happens to be the third run at only 87% SOC but one of the two runs without passengers...

    Great evening, great fun was had by all...and it continues because we also used his logger to record data for a couple of runs.
    So more posts/threads to follow from that evening !!! :D

    As I don't have as many toys as llavalle :p,
    I don't have video of all my runs but here are my 6 times the old fashion way in decreasing SOC:

    SOC 92%: [email protected] mph with 1 passenger + full logging
    SOC 90%: [email protected] mph with no passenger
    SOC 87%: [email protected] mph with no passenger
    < SOC: 11.929@ 112.61 mph with 1 passenger
    < SOC: [email protected] mph with 1 passenger
    < SOC: [email protected] mph with 1 passenger
     
  3. Bill D

    Bill D Member

    Joined:
    Oct 11, 2013
    Messages:
    392
    Location:
    Weston, Florida
    What Logger was used? Was it Lolachampcar's logger?
     
  4. llavalle

    llavalle Member

    Joined:
    Sep 9, 2013
    Messages:
    554
    Location:
    Somewhere around Montreal in Quebec, Canada
    No, I have a CANtact. I log the CAN message to text in the base format (basically time, message id + binary data). Then I created a small C# program to convert that to a CSV file using the ID and conversion posted here and wk057's documentation. Then I use dashware, a now free tool, to put the telemetry in the video. I had to create a custom datatype to parse my own CSV but it looks pretty neat!

    Here's the result of the logged run :

     
    • Like x 2
  5. Bill D

    Bill D Member

    Joined:
    Oct 11, 2013
    Messages:
    392
    Location:
    Weston, Florida
    Yes, it looks great.

    I had borrowed one of Lolachampcar's loggers for a while and I added a "virtual time slip" to the spreadsheet presentation of the data. I didn't have a chance to go to the drag strip with it, but I've been curious how close it would have matched the real time slip.
     
  6. Roadrunner13

    Roadrunner13 Member

    Joined:
    Oct 16, 2013
    Messages:
    290
    Location:
    Montreal
    I remember seeing your virtual time slip in the logging thread
    but I don't remember if you had tried to average out the last 66 feet's speed in the virtual time slip (which I believe is how the real is calculated)
    or did just you take the max value? I do remember a lot of fun calculation in that thread...but I'm not sure if that was part of them :)

    To compare for the later scenario, my max speed as logged from CAN for the run was 185.96 km/h or 115.55 mi/h.
    The real time slip recorded (shown in the video) is 113.11 mi/h which is lower as expected.
     
  7. Bill D

    Bill D Member

    Joined:
    Oct 11, 2013
    Messages:
    392
    Location:
    Weston, Florida
    The latest version (v4) of the logger spreadsheet I posted in the Google Doc folder computes average speed over the last 60 feet of the 1/4 mile. If I get a logger again, I'll change it to 66 feet and aim to get to the local drag strip to see how it compares.

    BTW - I assume the 1/8 mile speed is the average over the last 66 feet of the 1/8 mile, but I'm not sure. Do you know if the 1/8 mile speed trap is also 66 feet?
     
  8. Roadrunner13

    Roadrunner13 Member

    Joined:
    Oct 16, 2013
    Messages:
    290
    Location:
    Montreal
    I searched and couldn't find anything related to it either! Sorry :-(
     
  9. Vince Cobelo

    Vince Cobelo Member

    Joined:
    Nov 1, 2015
    Messages:
    257
    Location:
    Palmetto, FL
    11.64 seems slow. No ludicrous? With ludicrous don't they usually run just over 10's?
     
  10. Roadrunner13

    Roadrunner13 Member

    Joined:
    Oct 16, 2013
    Messages:
    290
    Location:
    Montreal
    The best 'Insane' on Drag Times run in the 11.5x seconds and I don't remember seeing any better on the forum for non-ludicrous runs,
    so 11.6x is not the best but close to typical.
    Most 'good' ludicrous runs recorded seem to run between 11.2x & 11.4x...
    Lots of debate on other threads on whether this will improve, so I won't speculate or comment on low 11's.
     

Share This Page