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suspension/jumpy chassis

Discussion in 'Automobilista 2 - General Discussion' started by Jens E., Nov 29, 2020.

  1. Jens E.

    Jens E. Member

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    so here my interpretation what's up with this jumping or how it feels.
    it`s like the cars has no damping at all or damping works but the movement the tires and suspension does normaly are transfered to the chassis of the car (without dampening etc).
    so like the tires are glued to the tarmac, got a stiff suspension and the chassis does the movement (all of them).
    i dont say a chassis will never move up and down but its a time shifted movement (happens later when the push came into the suspension) and because of the dampers its a way lower movement.
    so when this will be fixed?
    because this affect the FFB while driving too.
    (without fixing this, the sim is in my personal opinion a waste of time).
     
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  2. LugNut

    LugNut Active Member

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    Cya
     
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  3. Jens E.

    Jens E. Member

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    so you will say everything is fine as it is now yes?
    i spend over 100€ (120?) for the game.
    its not like a 5€ buy and forget c title on steam sale.
    i spend a lot of money, i can expect a working product.
    im old enough to not oversee issues and eat everything what is served on the table like a child.
     
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  4. Gordie

    Gordie Active Member

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    Personally I feel that the tyres are too soft, as in the sidewalls - and because of this the tyres are labouring a lot of forces that the dampers and springs should be, almost acting like additional softer spring in the load line, which it should be to an extent but perhaps a little exaggerated currently.

    The latest stiffening of the sidewalls have made a huge difference to the cars that have had this applied so things are definitely heading the right way. The Porsches, well, there's something else going on there.

    It's worth noting that Renato said some time ago that the tyres and diffs are the two components that differ from AMS1 and will require some work to get right. Already there's been a lot of developments on these fronts and given time they'll be spot on.

    Just have to be patient and let the game develop, they can't fix everything at once but are trying their hardest to do so.
     
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  5. Jens E.

    Jens E. Member

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    the problem is: in the beginning (release) the jumping was not present (?).
    Aris says on one of his streams the tire is a part of the suspension that you can influence with the tire pressure.
    but i think the problem is somewhere else.
     
  6. steelreserv

    steelreserv Well-Known Member Staff Member AMS2 Club Member

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    Its damping. Particularly the Fast dampers. No question about. Especially the porsches. They were bad, 1.5.5 helped, then the stiffer sidewalls make it worse again.
    The cars aren’t handling the road oscillations or the curbs very well. Curbs can be avoided. But if you’re rear tires are losing grip down a straight (you can tell by the rev indicator) there’s a problem.
     
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  7. Gevatter

    Gevatter The James May of Simracing AMS2 Club Member

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    Are you guys changing setups and can't dial the jumpiness out or are you complaining about the cars as they come? Because then it is a question of bad physics parameters vs bad stock setups.
     
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  8. Jens E.

    Jens E. Member

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    i dont work on setups.
    a car should be able to drive without changes in the beginning.
    even the overtaking rear end drives me crazy in this Sim.
    whatever you do this happens (even with ABS set to high).
     
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  9. LugNut

    LugNut Active Member

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    Hi,
    You talk about child...I've only read two your posts and you remind me of a complaining child.
    Its a work in progress and I am enjoying myself.
    Just about everything could be better, but as it sits right now, I'd rather race in ams 2 than,say, acc. The way the cars drive in acc put me to sleep. Bland.
    IMHO.
    Oh yeah, turn 66 in DEC. Been mp simmin since 2007.
    As my dad used to say, you catch more flies with honey.
     
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  10. BrunoB

    BrunoB TT mode tifosi BANNED

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    Yeah this issue is probably just that people are unable to create setups that compensate for a physics bug.
    Sounds veery reasonable.

    ByTheWay: @Jens E. there is a feature in forum called ignore ;)
     
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  11. Jens E.

    Jens E. Member

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    @BrunoB: i know this function.
    But know i would say after hearing his age i would say "old people are stubborn" (and know everything better then the rest on this planet).
    He has his opinion, i got mine and this is ok.
     
  12. Gevatter

    Gevatter The James May of Simracing AMS2 Club Member

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    No I'm not insinuating people should compensate for bad physics. My question was if the car maybe comes with an unreasonably stiff stock setup, or if there actually is a bug in the physics. Just because a car can't be driven well as it comes in a sim doesn't necessarily mean there is something wrong with its physics.
     
  13. Jens E.

    Jens E. Member

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    all cars i drive the last times are jumpy.
    prototypes, GT4, BMW M1...
    so its a physics or suspension problem
     
  14. John Hargreaves

    John Hargreaves Well-Known Member AMS2 Club Member

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    Is there any possibility this could also be a camera/head movement issue?
     
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  15. steelreserv

    steelreserv Well-Known Member Staff Member AMS2 Club Member

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    I can’t speak for all of the porsches, just the GT3, but its both. Prior to the sidewall fix, the bounce could be tuned out to a large degree with max fast damping. Then they fixed the bug with the bumpstops, which helped the default setup. Then they increased sidewall stiffness and its back, even with max damping. The max dampers are not strong enough.
     
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  16. steelreserv

    steelreserv Well-Known Member Staff Member AMS2 Club Member

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    Perhaps that could help how it looks. But you can certainly feel it still through the FFB, and the rev indicator skips down a straight, indicating slight traction loss, confirmed by telemetry.
    The dampers simply cannot keep up with the springs. The Min spring stiffness was also a problem. Now add stiffer tires which basically transfer the energy directly to the springs even more.
     
  17. Jens E.

    Jens E. Member

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    as above said, then you would not feel it in the FFB if this was only a cam/optical problem.
     
  18. Coanda

    Coanda aahhh whinge whinge f@#ken whinge.. Staff Member AMS2 Club Member

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    I rarely work on setups in AMS2 anymore because every month there is a reset. No big deal for now.

    The Super V8 use to bounce a lot however they have done a lot to improve this area and I am sure their will be some more to come..
     
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  19. BrunoB

    BrunoB TT mode tifosi BANNED

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    Agree with that.
    Hehe specially your use of the word "necessarily".:)
    I admit that I more or less only does drive formula cars(F-V10G1/F-Reiza) and some prototypes.
    And they are all VERY jumpy.
    And also too jumpy.:eek:

    ByTheWay: @Jens E. Im not so sure you can conclude 100% that if you can feel it in the FFB then it cannot be only a cam/optical problem. Eventhough I admit you could be right ;)
     
    Last edited: Nov 30, 2020
  20. Jens E.

    Jens E. Member

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    well after the BMW M1 start to jump around the corner my DD wheel give me a arm massage...
    so its not only a optical problem ;)
     
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