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Modified Model S To Take On Pike's Peak

Discussion in 'Model S' started by JRP3, May 21, 2016.

  1. JRP3

    JRP3 Hyperactive Member

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    Model S with aftermarket battery pack will run Pike's Peak race this year. No details on the pack but I'm assuming a high C rate LiPo or LiFePO4 battery pack.

    Tesla Model S To Compete For The First Time In Pikes Peak Hill Climb

     
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  2. e-FTW

    e-FTW New electron smell

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    Yes, it does not sound like he deleted cells from a Tesla pack. That would reduce voltage, and well, performance. And you need that to beat records!
     
  3. csshih

    csshih whirrrr

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    Isn't the pack 96s74p? they could potentially remove most of those parallel cells and add in more cooling.
     
  4. Saghost

    Saghost Active Member

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    In a Tesla pack, every cell is individually fused. If you're going to keep the same power output but remove 80% of the cells, you'll blow all of the fuses - and I don't think the cells themselves can handle the ~25C discharge rates that'd be involved.

    It's probably a ~400V collection of cells, but they'll be LiPo or something else that can handle high discharge rates, custom built. Maybe similar to the packs of white zombie and zombie 222 (electric conversion drag racers.)
     
  5. Edmond

    Edmond Permanon

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    Yeah, probably LiPo flat-packs, to eliminate all the steel and the, you know, safety.
     
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  6. e-FTW

    e-FTW New electron smell

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    Other threads are discussing the results of the race. He did very well in the 11 minute timeframe.

    If you watch this video, nothing leads me to believe this is not a stock pack:
     
  7. JRP3

    JRP3 Hyperactive Member

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    He says it's 800lbs lighter than stock, and that's with the addition of a 200lb roll cage. I don't think you could take 1000 lbs out of the car without changing the pack as well, but he does seem to be talking as if the pack is stock. Very strange.
     
  8. bxr140

    bxr140 Member

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    I don't think it would be super difficult. Strip the interior, trunk, and frunk of all essentials and some lighter wheels and I think you're basically there.
     
  9. JRP3

    JRP3 Hyperactive Member

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    I can't imagine it all adding up to that much weight since it should mostly be lightweight plastic, other than the seats, but I guess it's possible.
     
  10. nativewolf

    nativewolf Member

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    cut the armor off the bottom of the car battery pack would save hundreds of pounds though; that and seats. Put all that back on after you finish.
     
  11. e-FTW

    e-FTW New electron smell

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    We should ask @Btr_ftw , he knows how much everything weighs...
     
  12. jaguar36

    jaguar36 Member

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    Don't forget about all the airbags, noise dampening, speakers, A/C, replace the windows with lightweight plastic, should be able to get there. I'd also guess the 800lbs lighter is before the roll cage.
     
  13. brkaus

    brkaus Member

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    For a race car, ideally the chargers would be external. One of the threads here said they were quite heavy.
     
  14. e-FTW

    e-FTW New electron smell

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    Possible, although from looking at this picture from this article, I think I see an onboard charger there.
    [​IMG]
     
  15. eldis

    eldis New Member

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    I know a guy that went there and talked with them.
    - Stock pack
    - No drivetrain mods
    - Ice under the pack to cool it down.

    Quite disappointing, I was hoping that such people/companies will not be so afraid to touch the car anymore.
     
  16. JRP3

    JRP3 Hyperactive Member

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    Still waiting for your inverter hack to release full potential :D
     
  17. eldis

    eldis New Member

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    Haha, I've been busted :)
    There are some things being cooked for Model S, especially the older RWD ones - with motorsport in mind. How about an aftermarket replacement inverter that never overheats on the track..
     
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  18. JRP3

    JRP3 Hyperactive Member

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    Interesting.
     
  19. tinm

    tinm 2013 S85 Owner

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  20. jaguar36

    jaguar36 Member

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    How will you prevent the motor itself from overheating though? My understanding is that the rotor in particular is a limiting factor.
     

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