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 and becoming a Supporting Member. For more info: Support TMC

Dragtimes P90D Ludicrous 0-60mph and 0-100mph video

Discussion in 'Video' started by eyespii, Sep 27, 2015.

Tags:
  1. lolachampcar

    lolachampcar Well-Known Member

    Joined:
    Nov 26, 2012
    Messages:
    5,131
    Location:
    WPB Florida
    yak,
    I do not think missing a 1/4 mile time for the first time ever is moving forward. If anything, they've got this one in reverse in a bad way (which will result in sideways if it turns out to be true).
     
  2. darthy001

    darthy001 Love my car, hope Tesla can get as great!

    Joined:
    Oct 29, 2012
    Messages:
    725
    Location:
    Bærum, Norway
    Has any of the usual car magazines in the US actually tested the P90DL? Motor Trend tested the P85D almost before it was launched, But I cannot remember seeing any major tests this time around.. Kind of strange and very not Tesla-like...
     
  3. lolachampcar

    lolachampcar Well-Known Member

    Joined:
    Nov 26, 2012
    Messages:
    5,131
    Location:
    WPB Florida
    Anyone in the WPB area with a Vbox? I just checked the price on Ebay and am not interested in paying over $400 to scratch a curiosity itch. If there is someone local, I would like to get the Service Center's demo and confirm its performance as another data point.
     
  4. Andyw2100

    Andyw2100 Supporting Member

    Joined:
    Oct 22, 2014
    Messages:
    6,560
    Location:
    Ithaca, NY
    Leaving aside for the moment the question of the P90D with Ludicrous quarter mile time, what about looking at 50-70 and 60-80 times, and seeing how those compare to P85D times? I think it would be interesting to see those times for the P90D with Ludicrous and the P85D now, and then to compare those to the P85D upgrade to Ludicrous times when the upgraded cars are on the streets.
     
  5. Pete90D

    Pete90D Fan of Red Lights

    Joined:
    Jul 25, 2015
    Messages:
    476
    Location:
    Bay Area, CA
    0-60/30-50/50-70 comparitive times for 70D/85D/P85D

    I've been updating it as I've seen better numbers
     
  6. Andyw2100

    Andyw2100 Supporting Member

    Joined:
    Oct 22, 2014
    Messages:
    6,560
    Location:
    Ithaca, NY
    Thanks, Pete.

    So we'll have a pretty good resource and way to compare things once the first updated P85Ds are out, assuming some of those blank boxes get filled in. (I'm sure they will, by you and others.)
     
  7. Pete90D

    Pete90D Fan of Red Lights

    Joined:
    Jul 25, 2015
    Messages:
    476
    Location:
    Bay Area, CA
    I'm hoping to find some time to organize a bunch of people to go to the track and get a bunch of numbers all at once for each model. It's harder to do a rolling 50-70, but we can at least get a numbers for each from 0 and maybe have a separate table for it so it's clear
     
  8. sorka

    sorka Well-Known Member

    Joined:
    Feb 28, 2015
    Messages:
    5,444
    Location:
    Merced, CA
    I don't see how they're going to up the P90DL performance more unless the 1/4 mile times are short because it's putting out significantly less than 456KW after it hits it's peak at 48 MPH.

    On the P85D, if the voltage drop is only down to 320 volts, the P85D would peak at 416KW at 1300 amps which is exactly what we get. If we don't drop below that at 1500 amps then we could get 480KW in theory from a pack that has only logged 456KW. But I'm pretty sure at that much higher amperage, the voltage drop will be more so it's unlikely that there's a full 24KW left.

    Still the conspiracy theorist in me is wondering if they're intentionally lower output of the P90DL until all the P85D upgrades are done so that it isn't obvious that there's truly a much bigger difference in performance between the two.

    That said, I've said and I still think a 5000 lb car that has monster torque will still need 750 hp to make a 10.9 second 1/4 mile.
     
  9. LargeHamCollider

    LargeHamCollider Battery cells != scalable

    Joined:
    Jan 10, 2015
    Messages:
    867
    Location:
    United States
    Have any P90D owners reached out to Tesla for comment on this? don't have a P90D but as a shareholder I want products to meet spec.
     
  10. WarpedOne

    WarpedOne Supreme Premier

    Joined:
    Aug 17, 2006
    Messages:
    3,822
    Location:
    Slovenia, Europe
    I've set out to prove you wrong, but I proved you more than right.
    Assuming constant acceleration that will result in minimum max power needed I get 759 HP as minimum needed for 10.9 run of 5000 pound vehicle+driver. 759HP is 567kW. At 1500A max that results in 378V needed for 10,9 seconds straight.
    As power cannot be constant from 0, the max number will have to be even a bit higher.

    I'd say that writing on the wall is flashing in red :(
     
  11. Matias

    Matias Active Member

    Joined:
    Apr 2, 2014
    Messages:
    2,784
    Location:
    Finland
    Maybe the fuse tolerates more than 1500 amps for a short time? But it is inexcusable that they once again start deliveries before the car is ready.
     
  12. WarpedOne

    WarpedOne Supreme Premier

    Joined:
    Aug 17, 2006
    Messages:
    3,822
    Location:
    Slovenia, Europe
    Maybe, but rising the limit from 1300A to 1500A was justified by fuse being more exact and fast i.e. leaving less gray area. On the other hand, what is 1500A for 85 battery, is 1590A for 90 kWh battery.

    One wishful thinking could be that they have managed to do it with prototypes, but now they are ironing out all pesky details on different conditions of when, how and how many times they can afford to do it. It sucks if cars from the start don't have some feature, it sucks double if they have it from the start and is later taken away (lowering at high speeds any one?).

    8 year warranty needs some statistical data.
     
  13. Kristoffer Helle

    Joined:
    Jan 1, 2015
    Messages:
    197
    Location:
    Norge
    As tesla said: you need minimum 90% battery. At 90% the internal resistance is at it lowest. 21" wheels? Try the lighter 19"(big difference in acceleration). Panorama roof is like having a adult person in your car.
    AC must be turnd off etc etc...
     
  14. fiksegts

    fiksegts Active Member

    Joined:
    Jan 6, 2013
    Messages:
    1,272
    Location:
    Miami
    I tested at 90%, of course AC off, etc, wheels and pano roof will not make up 4/10ths.....




     
  15. darthy001

    darthy001 Love my car, hope Tesla can get as great!

    Joined:
    Oct 29, 2012
    Messages:
    725
    Location:
    Bærum, Norway
    Out of curiosity: would a 10.9999 run be considered a "10.9"-run?

    reason I ask is that the times posted seem closer to 5/10ths off...
     
  16. fiksegts

    fiksegts Active Member

    Joined:
    Jan 6, 2013
    Messages:
    1,272
    Location:
    Miami
    I would be very happy with a 10.9999999


     
  17. e-FTW

    e-FTW New electron smell

    Joined:
    Aug 23, 2015
    Messages:
    2,236
    Location:
    San Francisco, CA
    That sounds like fun. Count me in! Needs to be close to a supercharger if all cars need to be close to max charge.
     
  18. Pete90D

    Pete90D Fan of Red Lights

    Joined:
    Jul 25, 2015
    Messages:
    476
    Location:
    Bay Area, CA
    Sonoma Raceway is 18.3mi away from the Petaluma SC. Best times are probably going to be around 85-90 SOC. For me charging to 100%, 18mi brings me close to 90%.

    They have a Wednesday night Drag event, but they also do private events. I'll contact them and maybe we can have a TMC event where Bay Area members can all meet up. It might cost money, but if we get enough people it might be reasonable.

    - - - Updated - - -

    Just sent the email to find out. It looks like it might require 6-12 months notice, but says sometimes dates become available sooner. Also there will be a cost because they have to have emergency crews, facility people, etc. I'll update when I find out more.

    Mainly thinking this because driving up to Sonoma on a Wednesday night and sitting in a pile of cars sounds painful... at least coming from the south bay.
     
  19. AWDtsla

    AWDtsla Active Member

    Joined:
    Mar 3, 2013
    Messages:
    4,135
    Location:
    NE
    This sounded wrong so I used the googles to remind me that s = 1/2at^2. That says at a constant acceleration of 1.1G's you would do the 1/4 mile in 8.64 seconds. Ok, so how much constant acceleration would it take to hit the 1/4 in 10.9? ~0.68G's. Of course We know we get 1.1G's at launch, so we can taper more at the end and still hit the time. I think all it would take is a little more acceleration at the beginning.
     

Share This Page

  • About Us

    Formed in 2006, Tesla Motors Club (TMC) was the first independent online Tesla community. Today it remains the largest and most dynamic community of Tesla enthusiasts. Learn more.
  • Do you value your experience at TMC? Consider becoming a Supporting Member of Tesla Motors Club. As a thank you for your contribution, you'll get nearly no ads in the Community and Groups sections. Additional perks are available depending on the level of contribution. Please visit the Account Upgrades page for more details.


    SUPPORT TMC