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Do you think our cars can go to a higher speed than 130, 140, 155 MPH?

Discussion in 'Model S' started by P85DBeast, Feb 26, 2017.

?

MPH Higher?

  1. Yes

    12 vote(s)
    70.6%
  2. No

    5 vote(s)
    29.4%
  1. P85DBeast

    P85DBeast Side tEsLa

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    Atlanta, GA
    Here's the top speed I think each battery is capable of hitting.

    60, 60D Currently only able to get to 130 MPH = I think they "Could" hit 140-145 MPH.
    75, 75D Currently able to get 140 = I think they "Could" hit 150 - 155 MPH.
    90D,100D,P100D Currently able to hit 155 = I think they could possibly hit somewhere in the 170 - 185 MPH Range.

    Im pretty sure we all know the P cars could go faster.
     
  2. Haxster

    Haxster Member

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    My 90D can exceed 500 MPH! (when flying in a cargo plane).
     
  3. Uncle Paul

    Uncle Paul Member

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    Canyon Lake,CA
    Many vehicles are max speed restricted due to regulations or standard tire capacity.

    Vehicles are manufactured to a conservative standard for safety reasons. Higher safe speeds might need additonal aero for downforce, better braking, stronger suspensions, additional cooling, firmer shocks etc.

    I would imagine that Tesla could easily increase the top speeds of their vehicles with a few lines of code, but so many components may then be pushed closer to their limits than comfortable.
     
  4. chargeshare

    chargeshare Member

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    or even exceed 1000mph on earth around the sun...
     
  5. Burnt Toast

    Burnt Toast Member

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    It's great that you like guessing things based on nothing, but seeing as a 60D and 75D are mechanically identical, there would be no difference in ultimate top speed. The Model S is essentially limited by its gearing. The Models S has a single speed gearbox, it's never going to be able to have a super high top speed. The top speeds are likely the ultimate top speeds on the P cars and not software limited. (Until the battery overheats, then the cars will be software limited).
     
    • Like x 1
  6. JohnnyG

    JohnnyG Weee!

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  7. Burnt Toast

    Burnt Toast Member

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  8. McRat

    McRat Active Member

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    #8 McRat, Feb 27, 2017
    Last edited: Feb 27, 2017
    Trust me, Americans do not obey that. .... edited off topic
     
  9. JohnnyG

    JohnnyG Weee!

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    Columbus, OH
    Yes... Gearing and RPM software limit chosen to reach a top speed of 155. Being a single gear, they could choose to gear it to reach, say 160, 165, etc. Also, we don't know the true mechanical RPM limit of their motors. Can anyone share Tesla's spec for the mechanical limit to the top speed of their motors? We all know what the software limit is set to. I haven't seen any specs listed as to the mechanical RPM limit.

    Doing the math, I did find it interesting that the big performance motor isn't what gets it to 155MPH; it's the small front motor.

    2015 P90D

    Front Motor:
    Max Speed - 18000 RPM
    Final Drive Ratio - 9.34:1

    Rear Motor:
    Max Speed - 16000 RPM
    Final Drive Ratio - 9.73:1

    245/45R19 - 751 Revs/Mile
    245/35R21 - 749 Revs/Mile
    265/35R21 - 734 Revs/Mile

    Front Wheels:
    Max Shaft Speed - 1927.2 RPM
    Max Wheel Speed - 154.4

    Rear Wheels:
    Max Shaft Speed - 1644.4 RPM
    Max Wheel Speed - 134.4 MPH
     
    • Informative x 2

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