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2016 MS P100D Powertools RunLog

Discussion in 'Model S: Driving Dynamics' started by bcampbelllds, Nov 20, 2016.

  1. bcampbelllds

    bcampbelllds Member

    Joined:
    Dec 19, 2015
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    216
    Location:
    North Dallas, Texas
    I don't know how many of you use the Powertools app but it's a nice app to check MAX KW and 0-60 times. Two separate logs are attached. The first run was at 80% SOC with two people in the car, level road, with max battery power on, and launch control used. Best time we could do was 3.0 0-60 and MAX KW was 542
     

    Attached Files:

  2. brianman

    brianman Burrito Founder

    Joined:
    Nov 10, 2011
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    726.8 hp
     
  3. sorka

    sorka Active Member

    Joined:
    Feb 28, 2015
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    4,261
    Location:
    Merced, CA
    You can't use PowerTools for anything remotely resembling an accurate 0-60. That could just has well been off +- 0.5 seconds in either direction given their sampling rate. Plus you can't rely on the speed sensor which is what PowerTools is logging. Get a vbox and you'll see plenty of of 2.5's like other P100D owners have...with a 1 ft rollout of course. Without the rollout, it will be closer to 2.75.

    That said, the author of PowerTools acknowledges that they're not doing any curve fitting so the first sample they take is the one at 0 MPH but the next sample of after that may or may not be closer to where movement actually started. It's easier to interpolate the end point since since there's a non zero speed between the samples that fit exactly at 60 MPH. For instance if the second to last sample is at 57 and the next sample above is 61, then even without curve fitting, you know that the sample actual time is about 3/4 of the way through the time between those last two points, but author of the program admits that they take the first sample that is 0 speed and the last sample that is *above* 60 MPH with no correction or curve fitment.
     

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