TMC is an independent, primarily volunteer organization that relies on ad revenue to cover its operating costs. Please consider whitelisting TMC on your ad blocker and becoming a Supporting Member. For more info: Support TMC
  1. TMC is currently READ ONLY.
    Click here for more info.

Roadster and Model 3 owners - what do you think of the difference in throttle response lag?

Discussion in 'Roadster: Performance' started by dspwhite, Mar 18, 2020.

  1. dspwhite

    dspwhite Member

    Joined:
    Nov 21, 2012
    Messages:
    97
    Location:
    UK
    Not talking about acceleration or torque here, but rather pedal response. In the past, I've heard at least a couple of people say that their Roadster felt a bit more responsive with the accelerator pedal than their Model S or 3. Do any owners of both these cars agree?

    To be clear, I'm explicitly talking about the time gap between pressing on the accelerator pedal, and when the car starts to move. In the Model 3, it's quick (guessing 200 milliseconds or less), but I don't think it's instant. I'd love to hear feedback on that.
     
  2. AEdennis

    AEdennis Active Member

    Joined:
    Jul 23, 2013
    Messages:
    2,711
    I don't notice a difference... But we have a 1.5 and I have an early VIN LR RWD Model 3 (Sub 2500)
     
  3. jason.tv

    jason.tv Member

    Joined:
    Feb 13, 2020
    Messages:
    401
    Location:
    Florida
    #3 jason.tv, Mar 19, 2020
    Last edited: Mar 19, 2020
    I have a Standard range plus and a Roadster 2011 Sport 2.5; It feels they are exactly the same, I think the model 3 might have a little more pedal response / instant torque than the roadster since the efficiency and dynamics are better technology and upgraded dramatically. But to comparisons it's almost identical; I describe roadster same speed as model 3 but as a convertible.

    but when slowing down with regenerative breaking in the model 3 and then slamming the accelerator at speed of 25-35mph the model 3 does have more or better pedal response / torque or oomf.

    I think you might be referring to the transition of pedal response between the two; the model 3 is more smooth transitioning, the roadster is more "Tap" and play. But even in this comparison they are almost the same or identical in pedal response.

    The model 3 has quicker pedal response time imo.
     
  4. gregd

    gregd Active Member

    Joined:
    Dec 31, 2014
    Messages:
    2,524
    Location:
    CM98
    My daughter has "test driven" both her sister's Model 3 (RWD long range) and my Roadster (2.0 standard), and her overall feeling was that the Roadster was "more refined" (her words) in its accelerator pedal response. More smooth, less abrupt, especially when transitioning from acceleration to regen to braking. She didn't stomp on either (probably not insignificantly because her sister / dad were in the passenger seats during the tests), so no reaction on how quick they respond to being pushed.

    It has also been noted that when doing a drag strip start that one sometimes gets a better result with a squeeze of the accelerator pedal instead of a really quick stomp on it. That's apparently because the ABS system needs a little bit of movement to figure out how to not spin the wheels, and may overcompensate (limit torque) a bit too much at first. If you're already moving, even slowly, stomping on the pedal seems to work better. I haven't tried this quantitatively, but have felt it. If you want to impress someone with the car's quickness during a test drive, start moving sedately first, before showing what the car can do.
     
  5. hcsharp

    hcsharp Active Member

    Joined:
    Jun 7, 2011
    Messages:
    3,370
    Location:
    Vermont
    I'm afraid I have to disagree. We have a Roadster 2.5 and a Model 3 LR dual motor. My Roadster is noticeably more responsive. That is especially true when transitioning to regen which is far quicker (and much stronger) in the Roadster (not just a little!). The acceleration response also feels quicker in the Roadster.

    There is a slight lag in the Model 3 between when I stomp on it and when it gets up to full power. I would guess about 200ms before power begins but then it takes a couple hundred ms more for it to ramp up. There is no such lag in the Roadster. It might take the same 200ms to begin applying power but it is more abrupt from then on. No waiting for "ramping up" like you get on the Model 3.

    Just my .02
     
  6. dhrivnak

    dhrivnak Active Member

    Joined:
    Jan 8, 2011
    Messages:
    4,387
    Location:
    NE Tennessee
    I am with Henry Sharp here as I too think the Roadster is more responsive (LR RWD) especially at the very low end. Not that the Model 3 is a slouch, but the Roadster is well, a Roadster. ;)
     
  7. dspwhite

    dspwhite Member

    Joined:
    Nov 21, 2012
    Messages:
    97
    Location:
    UK
    #7 dspwhite, Mar 21, 2020
    Last edited: Mar 21, 2020
    To be clear, I'm not talking about how quickly it gets from applying low power to high power, but rather the time gap between when you press the accel pedal and the car starts to move even a tiny millimetre. From testing I've done, it seems that's where the lag is on the Model 3 - from some tests I've done, I'm measuring around 120 milliseconds of this pedal lag.
     
  8. X.l.r.8

    X.l.r.8 Supporting Member

    Joined:
    Feb 18, 2018
    Messages:
    1,422
    Location:
    Toronto/Miami
    Model S 90D air suspension. I know what you mean, I think it’s the fact the suspension loads up on the border cars where the roadster does not. I feel the response is the same but the lag is due to the suspension and where we sit in the car, the roadster certainly feels like it’s more responsive but after building inverter boards for my LDU I don’t see how it can be.
     
  9. hcsharp

    hcsharp Active Member

    Joined:
    Jun 7, 2011
    Messages:
    3,370
    Location:
    Vermont
    Tesla definitively programs a ramp-up of power in the Model 3,S,X to give them a smoother feel. It's less jarring. It's not just the suspension. Aside from throttle response, the application of regen is dramatically different in the Roadster. Much quicker and stronger. My .02
     
  10. X.l.r.8

    X.l.r.8 Supporting Member

    Joined:
    Feb 18, 2018
    Messages:
    1,422
    Location:
    Toronto/Miami
    Regen is serious in the roadster, makes driving in the snow a whole lotta fun
     
  11. DeedWest

    DeedWest 2008 VP & 2011 2.5 Sport

    Joined:
    Feb 5, 2014
    Messages:
    850
    Location:
    Dallas, TX
    Which version of Model 3 have you tested this with?
     
  12. dspwhite

    dspwhite Member

    Joined:
    Nov 21, 2012
    Messages:
    97
    Location:
    UK
    Performance. I need to test in Dyno Mode (or maybe Obstacle aware etc. disabled) for more completeness.
     

Share This Page

  • About Us

    Formed in 2006, Tesla Motors Club (TMC) was the first independent online Tesla community. Today it remains the largest and most dynamic community of Tesla enthusiasts. Learn more.
  • Do you value your experience at TMC? Consider becoming a Supporting Member of Tesla Motors Club. As a thank you for your contribution, you'll get nearly no ads in the Community and Groups sections. Additional perks are available depending on the level of contribution. Please visit the Account Upgrades page for more details.


    SUPPORT TMC