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MS Performance at Altitude

Discussion in 'Mountain/Southwest' started by ozweepay, Aug 17, 2015.

  1. ozweepay

    ozweepay Member

    Joined:
    Jul 16, 2015
    Messages:
    198
    Location:
    Boulder, CO, USA
    Anyone driven their MS at altitude? Say, up Pike's Peak or Evans or Trail Ridge?

    Does it suffer at all like an ICE does?
     
  2. BerTX

    BerTX Active Member

    Joined:
    May 2, 2014
    Messages:
    2,668
    Location:
    Texas/Washington
    The altitude would not cause issues like the lack of oxygen does for an ICE, but getting to the altitude could cause issues, both in range and in cooling.
     
  3. Barry

    Barry Active Member

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    Location:
    Colorado
    No suffering at all. EVs shine at altitude as oxygen is not required for combustion. At highway speeds, you will get better range than at sea level as the air resistance is less.
     
  4. napoleonblownapa

    Joined:
    Oct 15, 2013
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    101
    Location:
    Colorado Springs, Colorado
    I have driven to the top of both Mt. Evans and Pikes Peak. No problems at all EXCEPT the lack of oxygen made ME queasy. Mac
     
  5. Armadillos

    Armadillos Member

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    May 4, 2015
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    Location:
    Denver, CO
    I just took my car over Loveland and Independence Pass this last weekend(as well as Vail Pass on the way home). The car performed beautifully going up there! :)
     
  6. MorrisonHiker

    MorrisonHiker S 90D 2018.26

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    Mar 8, 2015
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    Location:
    Colorado
    Yikes. The road is pretty narrow in spots. Hopefully there wasn't a lot of traffic!
     
  7. Panoz

    Panoz Member

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    Nov 19, 2013
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    Location:
    Colorado Springs, CO
    I say every Colorado Tesla owner should jam the Pikes Peak Hill Climb in 2016...
     
  8. Barry

    Barry Active Member

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    Nah, it's plenty wide :smile:

    I was up over Loveland Pass several times in the last few weeks and going back that way next week. I'm there more in the winter than the summer, and I think it's a scarier drive this time of year as the contours of the drop-offs are more visible and you can really see how far down it is all around you. When it's all white, it's hard to judge the distances.
     
  9. Cottonwood

    Cottonwood Roadster#433, Model S#S37

    Joined:
    Feb 27, 2009
    Messages:
    5,076
    Location:
    Colorado
    Let's see, I have done:

    1. Trail Ridge Road
    2. Eisenhower Tunnel
    3. Vail Pass
    4. Hoosier Pass
    5. Fremont Pass
    6. Poncha Pass
    7. Wolf Creek Pass
    8. Independence Pass
    9. Mt Evans

    With a little luck, I will do Lizard Head, Red Mountain, Molas, and Coal Bank Passes before the end of the month.

    For a good list of Colorado Passes, see List of mountain passes in Colorado - Wikipedia

    The electric drive loses no performance to the altitude, except for some loss in cooling efficiency when pushed very hard. The regen on the descent regains most of the energy used on the climb. The steeper the descent, the more the loss in energy going up and down, but even relatively steep descents like the west side of Wolf Creek regain most of the energy. If above about 70% SoC, the sustained regen can run into the same charging limits as on a Supercharger; I have hit this on the east sides of Wolf Creek and Independence after leaving with 100% SoC from Pagosa and Aspen. Normally short bursts of regen never show a regen limit below 95-97% SoC.

    A Tesla is a wonderful mountain car!!!
     
  10. Armadillos

    Armadillos Member

    Joined:
    May 4, 2015
    Messages:
    188
    Location:
    Denver, CO
    Was some traffic, but nothing major. I-70 had the usual traffic jam. Thank god for TACC.
     

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