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Insane launches & Tesla App

Discussion in 'Model S' started by fadkar, Mar 9, 2015.

  1. fadkar

    fadkar Member

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    I'm expecting our P85D to be delivered by the end of the month and I can't keep my mind off of it! So instead of working and being productive, I came up with 2 questions for you guys:

    1) This may sound silly, but is it bad for the motor to do insane mode launches? I know for ICE cars, it isn't good... But I don't know if the same rules apply here since ICE are a lot more complicated with more moving parts...

    2) Can multiple drivers each download the Tesla app and connect to the car or is it limited to one phone only?

    Thanks!
     
  2. MassModel3

    MassModel3 Member

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    The question of being hard on the motor to punch it versus slow and steady has come up a few times, and the general consensus seems to be that it doesn't hurt anything since there's no gears to shift, just a computer controlling how much power is being sent to the motor.

    And you can have multiple phones using the Tesla app at the same time for the same car. My wife and I have both been connected simultaneously, even.
     
  3. dirkhh

    dirkhh Middle-aged Member

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    The motor itself? Not so much. But the fixed reduction gear attached to the motor (and the tires, etc) - yes, this does put additional strain on those materials
     
  4. fadkar

    fadkar Member

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    Awesome. Thanks!

    - - - Updated - - -

    Darn, straining the reduction gear does make sense... I guess I'll just have to get those launches out of my system sooner rather then later...
     
  5. mgboyes

    mgboyes Member

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    The entire drivetrain has an 8 year, infinite mile, warranty. Who cares?

    (and in any case I suspect the reduction gear will easily outlive the car whatever you inflict on it)
     
  6. dirkhh

    dirkhh Middle-aged Member

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    I like to drive my car, not have it at the SC (where it is right now, sadly). Destroying things just because I am entitled to a free replacement rubs me the wrong way.
    I'm sure you know more about the effect of massive torque on reduction gears than I do. Looking at the forces on the flanks of the gears I would be surprised if they wouldn't suffer from metal fatigue at some point, but maybe that will take much longer than I think.
     
  7. Todd Burch

    Todd Burch Electron Pilot

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    If the reduction gear is destroyed from insane launches, then it has a design flaw and should be corrected. You would not be stealing from Tesla "just because".

    Having said that, I wouldn't worry about it. It shouldn't cause issues, but if it does...well...there's that warranty...
     
  8. NOLA_Mike

    NOLA_Mike Active Member

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    Certainly reduction gear sets have been designed for much more torque/horsepower than what the Model S motors put out. So, the question becomes how much safety factor did Tesla build into the gears used in the Model S. If they put gears in that could potentially withstand many times the torque than what the Model S gives it then there is probably not much chance any number of insane launches is going to do it any harm.
     
  9. fadkar

    fadkar Member

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    Very good points. Using a P85D like it was intended to sits better in my stomach:cool:
    Obviously, Tesla must be pretty confident with their components if they're willing to put an 8 year infinite mile warranty on them!
     
  10. fiksegts

    fiksegts Active Member

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    how is it not good for ICE cars? the car was clearly designed for insane mode hence the button and Tesla quoting 0-60 in 3.2 seconds....



     
  11. Eclectic

    Eclectic Member

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    I think that the real harm to ICE cars comes from having to rev the engine and drop the clutch to get the best launch times (assuming a manual, as the good Lord intended). That does produce the best launch times, but it will eat up lifespan on components.
     
  12. EarlyAdopter

    EarlyAdopter Active Member

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    #12 EarlyAdopter, Mar 10, 2015
    Last edited by a moderator: Mar 13, 2016
    I wouldn't worry about it on the Tesla.

    And I wouldn't worry about it on a well engineered, warmed up ICE either. Just look at this - 50 launch control launches on a 911 in a row:

     
  13. LetsGoFast

    LetsGoFast Active Member

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    Heh. Except the reason the narrator made such a big deal out of it is precisely because the Porsche is extraordinary in this regard. Most cars refuse to do more than a handful of repeated launches.
     
  14. billarnett

    billarnett Member

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    I haven't tried but I suspect that a P85D can't do that many launches, either. I'm guessing that it would first overheat and limit power then run out of battery.
     
  15. glhs272

    glhs272 Unnamed plug faced villian

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    Frankly, I would be more concerned about the battery or components in the battery. Contactors come to mind.
     
  16. fadkar

    fadkar Member

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    #16 fadkar, Mar 11, 2015
    Last edited by a moderator: Mar 13, 2016
    I saw that video a few days ago! That abuse made me cringe... Although it is impressive!
    - - - Updated - - -

    Eh, I don't need it to do 50 consecutive launches! Every once in a while to get my cardio for the week;)
     
  17. mgboyes

    mgboyes Member

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    My point about the warranty is that it does not contain an exclusion or get-out relating to excessive use of insane mode. If Tesla were concerned about drivetrain wear they would have written something into the warranty.

    On lots of ICE cars the launch control feature comes with lots of caveats about excessive use voiding warranty e.g. I believe the Nissan GTR.

    But for example a Porsche 911 Turbo S can happily do launch control launches all day long back to back (someone even did a test of this recently and did about 50 in a row). They asked Porsche for a comment and they basically said that such use was clearly extreme, but that it would not impact the car's warranty.

    I think the reality is that in most cars Launch Control is bolted on as a sales feature and to enable the manufacturers to make performance claims much better than they otherwise could. But there are a very small number of cars where you really can get the stated performance off the line, any time you want, and the P85D (and the Porsche Turbo S) are two examples of that.
     
  18. LetsGoFast

    LetsGoFast Active Member

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    I've not tried 50, but I know I've done a dozen within a 20 minute window.
     
  19. nrcooled

    nrcooled P#8946 VIN 03225

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    A couple of cars that I am familiar with come to mind:

    Nissan GTR
    Mitsubishi Evolution
    Subaru STi

    The early GTR specifically voided warranties if launch mode was used. The Evolution VIII and IX would eat clutches and front diffs if launched repeatedly (and would not be covered under warranty if damaged). The STi would eat its clutch or center e-differential if launched repeatedly (also won't be covered under the warranty).
     
  20. SabrToothSqrl

    SabrToothSqrl Active Member

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    I punch it all the time in my S85. 8 year unlimited mile warranty on the motor + drive line.

    PUNCH IT!
     

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