Automobilista 2 V1.2.0.0 & Racin´ USA Pt1 RELEASED - Now Updated to V1.2.1.4

Discussion in 'Automobilista 2 - News & Announcements' started by Renato Simioni, Jun 4, 2021.

  1. CrimsonEminence

    CrimsonEminence Administrator Staff Member AMS2 Club Member

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    Not on-throttle...
    Until you break traction, which leads to power-on oversteer -> caused by lower power ramp angle
    Worse turn-in off throttle -> caused by lower coast ramp angle

    More clutches are multiplying the amount of lock, a clutch LSD can produce due to more friction.

    More lock is not automatically more stability. More lock just means, your rear wheels are less differentiating their speeds from each other. With high power/torque output you will induce more on-power snap/oversteer and worse turn-in.

    For stability you should touch the suspension and tires. (And aero)
     
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  2. F1Aussie

    F1Aussie Well-Known Member AMS2 Club Member

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    Yeah, I find diff settings a bit confusing, to try and get rwd cars with some stability I am finding I have to do different things to different cars to get the same result.i would imagine there are a large number of other setup variables to consider as well that I assume play a part here..
     
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  3. steelreserv

    steelreserv Well-Known Member Staff Member AMS2 Club Member

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    You’re on the right track.

    The convo here is about power oversteer which has as much to do with throttle management as it does the diff.

    A locked diff, with heavy throttling in a high torque car can and will cause the rears to break traction and continued throttling will cause the car to spin.

    The point @Koen_Sch was making was the example of high preload with high ramp angles is a bit crude as the preload effects the whole corner and you might not necessarily want the diff locked late corner entry and mid corner like that, just to give the car traction loss on exit.
     
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  4. steelreserv

    steelreserv Well-Known Member Staff Member AMS2 Club Member

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    Every car is different, every corner is different, and grip levels are dynamic.

    Managing/balancing these things (or be given the opportunity to do so) from a sim racing perspective is a beautiful thing.
     
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  5. ToMythTo

    ToMythTo The Hero We Need But Not Deserved

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    Sorry It is not my video, as I’m using VR I’m not even sure if it applicable on VR yet :)
     
  6. F1Aussie

    F1Aussie Well-Known Member AMS2 Club Member

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    If you know what you are doing then yes, lol.
     
  7. Marc Collins

    Marc Collins Internal Tester AMS2 Club Member

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    "Safer" set-ups will allow you to stay on the track longer and make fewer mistakes...a prerequisite to winning a race even before you achieve competitive speed ;)

    In terms of diff, a less locked diff (or even an open/non-LSD one) will be safer and easier to manage. When the diff is more heavily locked, it is easy to spin the car. When the diff is too loose, the worst thing that happens is you are a bit slower due to the inside drive tire spinning (tire fire we sometimes call it because it can overheat the spinning tire) and you are not putting all the available power down coming out of a corner. This is by far the lesser of the evils for someone who is not yet a throttle management expert. And the more powerful the car, the more critical this distinction becomes.

    One (the usual) way to learn throttle management is by driving a lower class car (like the Chevette in the Copa Classics) with an open throttle and not much power. Even still, you will easily be able to induce tire fire coming out of corners (if you have Fanatec pedals, you will feel the vibration from the spinning drive tire). What happens to the stability of the car? Almost nothing. You're just a bit slower than you could be. When you learn to squeeze the throttle just right, you will maximize the speed of this car.

    That technique is 100% transferable when you jump into a much more powerful car with a strong diff (e.g., the SuperV8). There, you MUST use the throttle management technique just to keep the car pointed in the right direction and perfect it to be fast.

    None of this requires looking at a set-up. Most race cars we would ever get to drive have a set-up and you live with it. But if you can even half master throttle management, then when you do go into set-ups or play with ones from @steelreserv, you'll be in a good position to determine what aspects of handling balance the diff is affecting versus the suspension components.

    Don't be afraid of set-ups, but also no point in fiddling with them until you have some depth of experience to be able to determine what is actually changing for the better or the worse.

    The beauty of @steelreserv's work is that we have a curated set-up to try that is an alternate to the default. It may or may not be an advantage to us depending on our driving style, but a fun activity is to listen to a set-up video explanation of what has changed and why, and then go try it on the track. See if we can "feel" the same differences in the two set-ups, and therefore get a sense of whether @steelreserv's personal approach works for us. If it does, we now have a bunch of great set-ups to use. If not, or to a lesser degree, we now learned what changes might be appealing or less appealing for us.

    This is the "beauty" being referred to (if I may speak for my bud @steelreserv!).
     
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  8. CrimsonEminence

    CrimsonEminence Administrator Staff Member AMS2 Club Member

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    Just to prevent misconceptions:
    It has no diff at all. It's a solid rear axle. (Spool)
     
  9. F1Aussie

    F1Aussie Well-Known Member AMS2 Club Member

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    So with the diff setting the coast and power ramp angles are more locked at lower settings and the more preload locks it as well? More clutches also lock it further?
     
  10. CrimsonEminence

    CrimsonEminence Administrator Staff Member AMS2 Club Member

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    Yes. Ramp angles are for the amount of diff/locking work when accelerating and decelerating (pushing two cases against clutches over a ramp being pushed by the spider gears shaft), the lower the ramp angle, the higher the pressing of the clutches = more lock. Preload is a spring, that applies an amount of "base" lock to the diff by pressing with the strength of a spring consistently against the side gears/inducing pressure on the clutches (EDIT: so the state between coast and power can become less abrupt for example) and clutches are increasing the lock, because they're the reason for pressing the axles together in the first place but without glue-ing them.

    So by friction...and the more friction, the better locking.

    These 2 videos will cost maybe 8-9 minutes of your life guys, but might help to understand it okay-ish, what the components are doing.^^ (way better, than to read about it, IMO)

    (Here basic workwise/understanding of a clutch LSD, without the explanation of ramps, and preload spring between the side gears)


    (Here basic workwise/understanding of a clutch LSD, with ramps, and preload spring as a plate spring on the clutches)


    EDIT: i have edited details to this post about 7 times now, i think :D
     
    Last edited: Jul 25, 2021
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  11. GearNazi

    GearNazi Well-Known Member

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    If we're still talking Reshade effects, alas... Available for OpenVR, cannot get it to work with the Rift S.
    I would give my right arm to have some basic controls in either the Oculus settings or the game.
    Just a saturation slider and some rudimentary gamma settings, maybe color temperature...
    Man, those 2d guys have it easy!:p
     
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  12. BrunoB

    BrunoB TT mode tifosi BANNED

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    Personally Im pretty hesitant to conclude too much from RL setting up a car and then how to setup a virtual car.
    No virtual car have any tires and springs or differential for that matter.:cool:
    A virtual car owe only its physical behaviour on our PC screens to some algoritms inside the game we call a racing sim.
    But because a racing sim is only a sim(plification) of RL physics then any 1:1 conclusion taken from RL car setup has a lot af chance to be false or at best partly false.
    Because as any sim(plification) then a racing sim is lacking a lot of the things needed to be close to the complexity of RL.:whistle:
     
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  13. Marc Collins

    Marc Collins Internal Tester AMS2 Club Member

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    You are incorrect. As simulations become more accurate, they simulate actual working parts and their interactions. The goal being that real life and sim approach 1:1.

    Madness is not on the level of rF Pro used by F1 teams, but it does simulate individual parts of the vehicle and their interactions. Reiza is using real life as the starting point to hone their sim...not another sim. This is why it takes longer, but the end result will be superior. They could have thrown in plausible-feeling estimates of things and been all done six or more months ago...and fooled 99% of people with the result.

    And sim is short for simulation, not simplification. The two are related, but simplification is not the driver of a good quality simulation. Simplification is used after doing it the best way either fails or is not feasible due to lack of data or too much complexity with little commensurate value. I'm glad you're not in charge of AMS 2 development!
     
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  14. Marc Collins

    Marc Collins Internal Tester AMS2 Club Member

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    Semantics for this discussion. It is the equivalent of a 100% locked LSD, which is all a set-up novice needs to understand. 99% of race cars have a diff (or more than one), but yes, the SuperV8 is a special case where they use technology purposely designed to make the car more challenging to drive.
     
  15. steelreserv

    steelreserv Well-Known Member Staff Member AMS2 Club Member

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    Don't forget the Aussie Roycing Camaro!
     
  16. CrimsonEminence

    CrimsonEminence Administrator Staff Member AMS2 Club Member

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    Or the possible configuration of the 962C in AMS2...
     
  17. BrunoB

    BrunoB TT mode tifosi BANNED

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    You are incorrect - says the man who has just shown that he dont really understand what the map–territory falacy is about.

    Because just because a socalled sim is trying to "simulate individual parts () and their interactions" doesnt mean that the simulated model will ever have a chance of comming even near an 1:1 existence of the reality it does pretend to describe.:cool:

    But I have also to admit that against a person openly expressing such a kind of believe that a virtual model of something in RL can ever be what it does try to describe - then there is no reason to try to use arguments.

    Instead I will just link to a quotation of an analogous/similiar falacy:
    The falacy of mistaking the map for the territory.
    In short: confuse models of reality with reality itself.
    Map–territory relation - Wikipedia

    ByTheWay: Even rF Pro is just a sim(plification) of something that is way more complex in reality (RL) than what this socalled "sim" can sim(ulate) in its simplified virtual "reality".;)
     
  18. Marius H

    Marius H Internal Beta Tester Staff Member AMS2 Club Member

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    Talking bout sims. Its still not 100% sim. We are already dead for ages until they can simulate the real world. 2200-2600 perhaps. Either Holodecks or Matrrix-plugin.

    We are still doing babysteps.
     
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  19. GearNazi

    GearNazi Well-Known Member

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    Soooo... In short; it's that time of the month.
    People pick a fight where there isn't one, this and that, everybody wishes it was next weekend, to get their hands on that sweet sweet classic RSR among other things.
    It really is like clockwork this!:confused:
     
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  20. CrimsonEminence

    CrimsonEminence Administrator Staff Member AMS2 Club Member

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    tsr38.jpg
     
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