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Drag times drive Model S 0-60 mph in 2.65s

Discussion in 'Model S' started by vigge50, Aug 18, 2016.

  1. vigge50

    vigge50 Member

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    • Like x 3
  2. MassModel3

    MassModel3 Member

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    That's.... just.... amazing!!!
     
  3. Neohippy

    Neohippy Member

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  4. mkspeedr

    mkspeedr Member

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    Is it safe to assume if I order a new P90DL to replace by slow out of date P85D this is the new standard?

    It is not random P900DL cars, right?
     
  5. fiksegts

    fiksegts Active Member

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    crazy quick, didn't think those 245's can handle that...
     
  6. Dennis87

    Dennis87 Member

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    time is with 1 ft rollout? So the real 0-60 time is close to 2.9 sec?

    We from Europe never use 1 ft rollout on 0-60 or 0-100 kph times so its confusing :)
     
  7. emir-t

    emir-t Member

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    100kwh confirmed
     
  8. P85DPB

    P85DPB Member

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    Could you please elaborate further....? thanks
     
  9. Dennis87

    Dennis87 Member

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    Latest 90 battery pack still read 4.2V at 100% soc via CANbus. So very likely not a 100 kWh package.
     
  10. emir-t

    emir-t Member

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    We have seen consistent evidence for the latest delivered 90D and P90D packs being 100Ds, software limited. If Tesla did make a 100D model with the same pack configuration, it means it has 3,7Ah cells now. Which is 'very' impressive. 3,7Ah * 3,7 nominal voltage = 13,69Wh per cell. 13,69*7104 = 97200Wh. Tesla will call this 100D, limit it to 97% DoD so it will be 94.3kWh usable. Assuming ~320Wh consumption you'll be able to do 295mi per charge. Will most likely be rated 320mi + EPA range.

    Anyway back to main topic. Larger capacity cells mean they can also discharge quicker at lower C rates, giving higher power outputs. Batteries love low C rates. (C rate is the discharge current as percentage of capacity. If a 3.1Ah cell discharges 3.1Amps, it is 1C. If it discarges at 15,5Amps, that's 5C) New pack will be 3,7*74 = 274Ah capacity. At fully charged voltage of 403V that means, at a 5C peak discharge rate, 552kW. This converts to better performance throughout.

    We have also seen another P90D break the quarter mile record and complete it in 10.8 secs. We have also seen newer P90Ds supercharger quicker and taper off later, because the battery is actually larger. So a 50% is actually 45%, doesn't taper off early. We have also seen Dutch authorities approve and list 100D and P100D models.

    It's just a matter of time. This is my take on it but if it's true, they've gotten the same cells so much better at chemistry. With the Roadster in 2008 AFAIK they've used 2.7Ah cells. 2012 Model S 85 packs were 3.1Ah. 3,7 would be more than 50% improvement over the course of 8-9 years. I attribute this mostly to the addition of silicon on the anode side. I don't know how they got around the silicon expansion problems but 4 years for a 20% improvement is very, very impressive.

    Applying this 20% chemistry improvement to 21-70 cells we get ~5.2Ah cells. 5.2Ah * 3,7 = 19,24Wh. That means a 55kWh low-end Model 3 pack would only be ~2850 cells. Less than half of Model S low end pack. So much less construction costs + economies of scale + production techniques.

    Voltage wouldn't increase with a new 100kWh pack because module count would still be the same as 90D. Cell capacity would increase.
     
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  11. Dennis87

    Dennis87 Member

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    #11 Dennis87, Aug 18, 2016
    Last edited: Aug 18, 2016
    Yes voltage wouldt increase. But voltage should have been lower than 4.2 on the new 90 pack if it really is a sw limited 100 kWh to 90 kWh like on the new sw limited 60/75 battery.
     
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  12. 2virgule5

    2virgule5 Member

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    If it's a 100 that is software limited to 90 I want to see supercharging data up to 100% SOC, i.e. graph power vs SOC. If it's the case we'll go faster to 100% charge and power delivered at 90% SOC will be similar to the power delivered to "old" real 90KWh pack at 80%.

    Only then that will be proof that 100KWh is already in the wild.
     
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  13. DillyBop

    DillyBop Member

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    what?
     
  14. sorka

    sorka Active Member

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    And what evidence would that be? Are you seeing less than the full 4.2 volts on an indicated 100% charge which it would be if it weren't really charging to 100%.
     
  15. S4WRXTTCS

    S4WRXTTCS Active Member

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    If there was evidence it would be in the supercharger charge curve as it got close to the end.

    If it was actually a 100kw battery it wouldn't taper as dramatically.
     
  16. SDRick

    SDRick Member

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    They must have known about the Max Battery setting, right?
     
  17. shokunin

    shokunin P85 & S40

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    Yes, the poster above fiksegts is the guy that runs the dragtimes youtube channel.
     
  18. emir-t

    emir-t Member

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    That's a good point. Somehow I missed that.
     
  19. thinklabinc

    thinklabinc Member

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    Question, when I follow the launch instructions, there's always the "both pedals pressed" message, in the video it appears as though launch is enabled without the message. It's not something I do often...but curious if anyone has figured it out?
     
  20. JeffK

    JeffK Active Member

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