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Tesla adding front motor to inventory RWD to make AWD?

Discussion in 'Model 3: Ordering, Production, Delivery' started by SoCalGuy, Aug 3, 2018.

  1. SoCalGuy

    SoCalGuy Member

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    I was wondering if, given all M3s are designed to have a front motor and all the stockpiled RWD Model 3s Tesla had prior to July 1, they would be retrofitting some of the less popular color cars (eg silver, blue) with a front motor to the extent there is more demand for those colors in AWD.

    For example, if Tesla had a couple hundred silver RWD waiting for an order to match, would they instead add a front motor to those cars if they had pending silver AWD non-P orders waiting? This would save them the trouble of the paint shop switching to batch produce silver and blue cars and also clear out some aging RWD inventory.

    Thoughts?
     
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  2. SD_Engnr

    SD_Engnr Member

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    It's a possibility, but I imagine there's additional wiring, suspension changes, and then a VIN tag change, too.
     
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  3. MXWing

    MXWing Active Member

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    Tesla has the entire world that wants the M3.

    We can’t be so American centric to not realize that.

    There’s no sense or reason to do any retrofits or upgrades when you are shooting for 10K a week volume.

    When you can build a 10 cars for every one car you try to retrofit it won’t make sense to do so from an efficiency and cost standpoint.

    Can be done, ought to be done are two different things.
     
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  4. MP3Mike

    MP3Mike Well-Known Member

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    Not likely at all as that would mean replacing the battery and front suspension at a minimum, and probably the SuperBottle as well.

    Not to mention that I don't think there are actually stockpiled "inventory" Model 3s. They are just having problems ramping up logistics and delivery as fast as they did production.
     
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  5. SoCalGuy

    SoCalGuy Member

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    SuperBottle?
     
  6. MP3Mike

    MP3Mike Well-Known Member

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    #6 MP3Mike, Aug 3, 2018
    Last edited: Aug 3, 2018
    Yeah, that is what Tesla calls the heart of the cooling system. It even has a SuperBottle logo on it. It would likely need changes for cooling plumbing for the front motor. (Possibly even an additional pump.)

    There is some information about it here: Tesla’s Model 3 Is Elon Musk’s Hell

    You can see it in this video: (Starts around 55 seconds in.)

    I tried to do a capture and edit the picture so you could see it better: (But it still sucks.)

    SuperBottle_edited.png
     
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  7. xdriv3

    xdriv3 Member

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    They keep filling RWD orders. The demand is also there. No way they'd retrofit already manufactured cars.

    You have people who order/config RWD cars in recent weeks and getting order status updates/matches in a few days after that.

    They also keep registering RWD VINs as well.

    Perhaps though should stop RWD production and focus on AWD to alleviate the pent up demand.
     
  8. ebmcs03

    ebmcs03 Active Member

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    I don’t think there’s many stock piled anymore there’s enough ppl who ordered on 6/27
     
  9. Derek Kessler

    Derek Kessler Member

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    It wouldn't be worth the effort and cost. Doing so would take thousands in parts and labor while simultaneously making a used car more expensive. It's good for Tesla to have a used car pool with a range of prices.
     
  10. rdlink

    rdlink Member

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    The RWD has a differently rated rear motor, also.

    upload_2018-8-4_6-25-42.jpeg
     
  11. SoCalGuy

    SoCalGuy Member

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    True. But consensus seems to be that the rear motor output is software limited
     
  12. MP3Mike

    MP3Mike Well-Known Member

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    Interesting but you will notice that the 2018 RWD has the same 211kW rear motor:

    2018 EPA.png
     
  13. rdlink

    rdlink Member

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    Yeah, I messed up and pulled the 2017 RWD into the comparison sheet. Didn't notice that.
     
  14. rdlink

    rdlink Member

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    I'd like to know where that consensus is. I haven't seen anyone provide any proof other than their gut/wishes. Elon himself said that rear motors for the Performance models are "lot sorted for highest sigma output & get double the burn in." That seems completely hardware/physical to me.
     
  15. shanejackson

    shanejackson Member

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    AWD and P motors are the exact same! The only difference is the inverter on the rear. The P uses the same inverter as the LR RWD. The AWD uses a lower output inverter.
     
  16. Knightshade

    Knightshade Active Member

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    Lot sort makes no sense if they’re physically different parts

    Lot sort BY DEFINITION is sorting the SAME physical parts.


    Musk said Drive units are sorted-so again that would make no sense

    The inverter is part of the drive unit

    The fact the AWD and P have the same VIN letter for drive unit ought make the fact it’s identical hardware even more clear


    It’s certainly possible an awd teardown will contradict what the info we have tells us- but right now it’s telling us same hardware
     
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  17. rdlink

    rdlink Member

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    I'm willing to concede that it may be the same exact hardware, except for the sorting and double burn-in. But that is the opposite of a software difference. You can't overcome a manufacturing quality difference with a software tweak.
     
  18. Knightshade

    Knightshade Active Member

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    There’s no evidence of a quality difference

    Unless their tolkerances are garbage the best and worst units will be within a few percent of each other

    So they could all be capable as P motors, they just sort the best ones as a marketing thing and maybe it helps with warranty cost by that same couple percent

    Then they software limit actual acceleration based on which model you paid for

    This also avoids a TON of cost and complexity for both manufacturing and supply chain that having physically different parts would entail
     
  19. boriszima

    boriszima Member

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  20. ebmcs03

    ebmcs03 Active Member

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    Wait so why is there a difference for the 2017 models?
     

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