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which is faster 30-50/50-70 S85D or P85D

Discussion in 'Model S: Driving Dynamics' started by thegruf, Apr 8, 2015.

  1. thegruf

    thegruf Member

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    You'd think P85D but

    I recall reading when they designed the new 221hp motor they "learned a lot" from the 470hp motor.
    I take that probably as mostly cooling.

    So the differnce is small but the P85D takes it on the first run, but then overheats and the S85D takes it on repeated runs?


    ... and is the difference worth $20K?
     
  2. arijaycomet

    arijaycomet Member

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    There had been a post some time ago that I had seen where the 85 RWD vs P85 RWD on the freeway the difference was not THAT substantial. I've not seen similar tests performed since then, however, that would compare the models across the board. I'd speculate, however, that the 85D vs P85D difference lies mainly in the lower speed realm. As you approach those higher speeds it takes a lot more power to overcome the air resistance etc. I'm sure the P85D is still faster at freeway speeds (passing power), but worth $20k? ... that is a personal judgement call each individual would need to make. Attempts to quantify those figures still wouldn't provide the answer, as for some people the price of having the fastest option is never a question. :)
     
  3. mnx

    mnx 2013 P85

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    I think I've read online that the now defunct S60 had a 30-50 time of 2.0s. The 30-50 for the old P85 was 1.8s... I'm sure the #'s are similarly small between the P85D and S85D (haven't seen them anywhere to know for sure though). The P85D would not "overheat" after one run, that's laughable. Not even the old P85 did anything like that. There is a guy who recently had his P85D on a road course consuming 1000Wh/mi and showed no signs of dialing back power levels.

    If I were ordering my first Tesla today I'd probably go for the P85D. :) However it's not worth 20k by any stretch of the imagnation... I mean for 20k you can buy a old BMW to beat on at the track and a decent used motorcycle too.
     
  4. Gizmotoy

    Gizmotoy Active Member

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    It wasn't huge, but definitely noticeable. 10-20% faster depending on the speed. Brian put the data in a table at one point:
    0-30 times for various Model S configurations ? | Forums | Tesla Motors

    Would be interesting to get current numbers for everything.
     
  5. silspd

    silspd Member

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    I just had a run recorded on a 90D and the 30-50 was 1.25 seconds.
    It was a 0-60 run so the 30-50 snapshot isn't the same as if you stomped on the pedal at 30. Still it's plenty quick though.
    BTW, the 0-60 for the 90D was 3.9 seconds, 0-30 was 1.8 seconds.

    This was recorded using the PowerTools app that reads the data directly from the Tesla car itself so it is probably fairly accurate.
    The logs claimed the car generated 490+hp from 30-55 mph. Dropped to 480 at 60mph. Road was at 101 ft elevation consistently (flat enough I think).
     
  6. tstafford

    tstafford Member

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    Nice stuff here!
     
  7. jasonjax

    jasonjax Member

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    I'm utterly pleased with my 85D performance wise having come from a 6.0L tuned engine. The acceleration is phenomenal and instantaneous. I would have loved to have the P, but I could not justify it in my head even though from an affordability perspective it wasn't much of an issue.

    Now, when the P150QP comes out ... maybe then ...

    ok... who can decipher what I think the P150QP stands for? :)
     
  8. ERP

    ERP Ludicrous Member

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    QP - Quad Powered - Each wheel has its own motor
     
  9. jasonjax

    jasonjax Member

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    ERP got the quad part right! But the P would stand for something else. :)
     
  10. Pete90D

    Pete90D Fan of Red Lights

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    Rimac Concept One has 4 motors. They say it can control each wheel at the rate of 1000 times per second.
     
  11. sorka

    sorka Active Member

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    Just keep in mind that that maximum sample rate through the REST API is 4 hz (250 ms) so 0-60 times are going to vary a lot. They bracket using the first sample that is none 0 MPH so it could be off by as much as 250 ms from the beginning.

    They don't do any interpolation on the end sample to estimate the time that it actually hit 60 MPH. I asked them and they said it was planned for the future. They don't estimate the actual start time by taking the current speed on the first none zero MPH sample relative to the previous 0 MPH sample. They could, but they don't.

    Bottom line is, it's fun but not very accurate. Using a stop watch is probably more accurate than Powertools. Don't get me wrong. I bought the app and I use it but not for 0-60 times but to graph KW usage overlayed onto vbox performance charts.
     
  12. jpet

    jpet Jan P.

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    Plaid of course :rolleyes:
     
  13. jasonjax

    jasonjax Member

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    DING DING ... had to watch that scene on youtube last night just to get a laugh.
     
  14. silspd

    silspd Member

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    Did another run on my 90D, this time to 100mph

    0-30 in 1.8 seconds
    0-60 in 3.875 seconds
    0-62 in 4.0 seconds
    0-100 in 9.375 seconds


    30-50 in 1.2 seconds
    50-70 in 1.9 seconds
     
  15. AWDtsla

    AWDtsla Active Member

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    Any readings on the G forces? iPhone app would do.
     
  16. silspd

    silspd Member

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    It was pulling
    0.81g between 0-18mph,
    0.72g between 18-50mph,
    0.54g between 50-62mph,
    0.40g between 62-71mph,
    0.36g between 71-79mph,
    0.32g between 79-93mph,
    0.27g between 93-100mph
     
  17. jerjozwik

    jerjozwik Member

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    long ass video, but managed to chip a block out of my "must have p85d/p90d" foundation.

    3.7.. thats really really good.
     
  18. 3mp_kwh

    3mp_kwh Member

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    Yes, but you left out the fun part -

    "Each wheel can independently accelerate or decelerate hundreds of times per second, helping to achieve the desired (driver selectable) handling. "
    http://www.rimac-automobili.com/concept_one/introduction-20
     
  19. Pete90D

    Pete90D Fan of Red Lights

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    Haha, sorry about that!

    I'll add that the 1000 I mentioned is in one video, but the owner says 100 in another. There's some conflict between videos I've watched. Either way that's a lot per second.
     
  20. jerjozwik

    jerjozwik Member

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