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P85D "Extra Firm" Ride - Love it or hate it?

Discussion in 'Model S: Driving Dynamics' started by mtco, May 7, 2015.

  1. mtco

    mtco Member

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    I'm on the hater side.

    I don't want to feel every crack in the road. Uneven surfaces bounce the occupants side-side.

    I have the performance seats - they don't make a difference. I've driven it with the 19" and 21" wheels - no difference.

    I drove a P85 loaner yesterday and it had a much nicer, smooth ride - and the handling didn't feel a lot different. I owned an S85 for 18 months before I bought this, it had a very nice ride.

    If I wanted a track car I would have bought one. This is a performance sedan.

    So why does this version have such a harsh ride? The weight and placement of the motors?
     
  2. bp1000

    bp1000 Member

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    It's harsher because it's heavier and a lot faster. Try putting all that torque and power down with softer springs. It also needs to do 155mph on the autobahn and maintain stability at such high speeds.

    You inadvertently bought a track-esq car in plain clothes.

    The 70d/85/85d might have felt different for you
     
  3. lolachampcar

    lolachampcar Active Member

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    Old M5 guy here.
    Lobbied Huibert Mees long and hard for firmer suspension on the sport variant.
    P85 to P+ was a move in the right direction.
    P+ to PD did the trick for me and I am now firmly (pun intended) in the love it camp.
     
  4. Footbag

    Footbag Member

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    I don't find my P85D overly harsh. There is a non flush manhole cover on the freeway I take every day. On both my old BMW 550 and wife's old Infiniti Q50, it was almost jaw rattling to go over it at freeway speed. In the P85D (when i'm unable to steer around it) it feels like just a regular bump.
     
  5. sorka

    sorka Active Member

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    Hate it. Overkill for street driving. It's setup for the track but I don't drive on the track. The P85+ loaner I had was the perfect balance. I complained to the SC and they told me the + suspension is the same as the PD and that the reason it was probably overly harsh is due to the 50 PSI in the 19" wheels. So I lowered it to 45 and it made no difference. Then I lowered it to 40 and it still made no difference. After that, I put the tires back up to 45 for safety.

    + and PD suspension are obviously not the same. There's far more compression and rebound damping on the PD that the plus and the spring rate of the air suspension is far stiffer. My loaner + had 21" wheels so it should have been harsher than my PD with 19" wheels. Both have air.

    I can go around a smooth on or off ramp at the limits of traction yet the car doesn't lean even an inch. It should lean some for a street setup even if it's aggressive. This is far stiffer than the Z51 setup on my Corevette.
     
  6. gordo

    gordo Member

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    Yeah, I don't really know what ppl are complaining about. I have 19" wheels @ 49psi and air suspension on my PD and I don't find it harsh at all. Then again, I'm coming from a 2004 Audi S4, which had 18s, Z-rated tires, a sport suspension and aftermarket sway bar, so maybe it's all relative...
     
  7. ra-san

    ra-san Member

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    Love it. Wouldn't mind it a bit stiffer. Gotta wonder if people thinking it is too harsh that also come from a sports car background actually have a D with a faulty suspension. If thinking is too harsh, but are comparing it to a floaty feeling luxury sedan, then just different wants probably
     
  8. dennis

    dennis P85D

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    So you think that Tesla has oversold the HP in your 3.1 sec 0-60 performance sedan and that the suspension is too harsh. Why not cut your losses and move on to something you like instead of repeatedly posting here about how unhappy you are?
     
  9. sorka

    sorka Active Member

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    The suspension can be fixed. I'd be happy with the suspension in both P85D testers I drove. That is not what I have. There is either something wrong with it or the specs changed between the cars I test drove and the car I got.

    So we shouldn't complain in this forum when something isn't right? Are you a fanboy Dennis?
     
  10. dennis

    dennis P85D

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    Of course you can complain. And no I'm not a fanboy. I responded the way I did because I had just read your nth identical complaint in the 691* HP thread and then this one. And there was the wine...
     
  11. gg_got_a_tesla

    gg_got_a_tesla Model S: VIN P65513, Model 3 Res Holder

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    Love it. Nice and tight compared to the floaty feel in my erstwhile S60. Don't feel bumps that prominently as others here seem to. I keep the 19s inflated to 45 psi, as recommended. Why are some overinflating, I wonder?!
     
  12. bhzmark

    bhzmark Active Member

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    P85d rides similar to previous Lexus. No problems at all.. Maybe your tire pressure is too high. Maybe your baseline happiness level is too low.
     
  13. sorka

    sorka Active Member

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    Just coincidence that I complained about two different things today :) The suspension can be fixed. I'm not so sure the power limitation can be though. Anyways, let's keep this thread on target. The other issue can be discussed in the other thread.

    - - - Updated - - -

    Well, since multiple people are complaining in this thread, that comment could be directed at one or more. In my case, I lowered the pressure of my 19" tires to 45 from 50. It made no difference. There's clearly some variation in P85D suspension setup based on either intentional spec changes or supplier changes or something as some P85Ds have a nice street compliant feel and some are washboard stiff. I'm sure the cause and the solutions will come out eventually.
     
  14. gordo

    gordo Member

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    Sorka, not sure if ur ever in the bay area, but if u want to swap cars for an hour we can compare suspensions... (And commiserate about lack of 691hp :wink:)...
     
  15. sorka

    sorka Active Member

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    Yup. I work in near Santa Clara. PM me :)
     
  16. Andyw2100

    Andyw2100 Well-Known Member

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    We're not. You're (now) under-inflating. Tesla changed their recommended inflation pressure: P85D 19 tire pressure recommendation is now 50psi
     
  17. gg_got_a_tesla

    gg_got_a_tesla Model S: VIN P65513, Model 3 Res Holder

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    Oh great. Didn't see that thread before. Thanks!

    An email alert from Tesla would have been nice; I guess their comms are not setup that well?! ;)
     
  18. sorka

    sorka Active Member

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    I lowered mine from 50 to 45. 50 is too close to the maximum inflation pressure of the tire. 51 psi is the max and it's not supposed to be exceeded even when hot.
     
  19. Andyw2100

    Andyw2100 Well-Known Member

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    I agree.

    And the communication even after the fact is not consistent.

    My all-seasons came back, after being installed, inflated to 48 PSI. When I asked about it, the SC said the recommendation was "45 to 50." But the thread I referenced, or others on the topic, say the door stickers are now stating the minimum cold pressure is 50 PSI.


    Where are you getting that information?

    Everything I have read indicates that the maximum pressure is always the maximum to inflate to when the tire is cold, and that it is understood that the pressure will be higher than that when the tire heats up.
     
  20. Cyclone

    Cyclone Active Member

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    This is correct.
     

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