Released Released | BMW M4 Class 1 2021

Discussion in 'News & Notifications' started by Paul Jeffrey, Jun 24, 2021.

  1. Lazza

    Lazza Registered

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    No, Andrea makes a good point. I know because I was going to make it myself :D (I'm joking! I'm joking!)

    But seriously, having values outside a normally useable range isn't unusual. Certainly playing F1 games and mods over the years, the minimum rear wing was always unusable to actually do times around a track - because if you make the minimum viable on a track, then at Monza everyone just picks the same wing. "Detach the rear ARB!" all over again.

    I drove the default Class 1 setup around a skidpan (at a certain radius, doesn't really matter) and was doing 240-245kph before understeer got excessive.

    Then with a setup built for understeer (just basic, pretty much what you had above but max front ARB and min rear ARB, as you'd expect to load up the front and try to balance the axles as much as possible) I was able to get 220-225 with a P4 wing. P8 felt overly safe, P1 still wasn't much good at that speed. To me that's not completely out of the ballpark - on a track with no very fast corners, but long straights that would benefit low downforce, that could be competitive.

    P1? Yeah, not at any circuits I'd normally drive. But you can't rule out it being useful on a track that's basically hairpins and straights. And as above: if you make the minimum wing quite competitive on corners, you're just making it the go-to setting at all fast tracks.


    So as far as conclusions go, the question is: is that rear wing setting really available? And is its effect realistic?
     
  2. Andrea Terzi

    Andrea Terzi Registered

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    I know Studio bases his mods on manufacturer user manuals. I can tell you these manuals usually show every possible setup available on the car, then it's the team itself who choose what makes or doesn't make sense
     
  3. Andrea Terzi

    Andrea Terzi Registered

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    Yes engineers, no they don't know everything as you may expect.
    Do you want an example? Peugeot 908 first prototype. They built the car, went at Paul Ricard to test expecting an aero balance of 50%, got an actual aero balance of 53% (or higher i don't remember), crashed, being forced to run at Le Mans with more front ride height to fix the problem messing up their ideal aero efficiency. Engineering is not a right science (this makes me laugh everytime but trust me it's true), so you are a good engineer if you leave yourself enough room for mistakes. Having more settings than needed is a perfect example of this approach
     
  4. Martin Dyrlund

    Martin Dyrlund Registered

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    In a specific GTE car the front aerobalance changes from 48% to 68% when the rake changes 1 degree during braking.

    Comparing to CFD of a generic F1 car:
    https://www.f1technical.net/features/23505
    The aerobalance changes from 43,4% to 53,1% but with a rake delta of 2 degrees.

    Is a GT car more aerosensitive than a F1 car?
     
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  5. vava74

    vava74 Registered

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    Higher centre of gravity could justify it? (just speculating)
     
  6. Kelju_K

    Kelju_K Registered

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    So what do you guys think is the lowest rear wing setting that the car can handle while still maintaining driveability?
    I noticed that i can get away with wing 21 in spa while still being able to go trough eau rouge flat out, and without having too much power oversteer shooting out of the (double left @) pouhon.
     
    Last edited: Feb 11, 2022
  7. Boldaussie

    Boldaussie Registered

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    From my observations tuning the M4 Class 1 mostly came down to rake and to a lesser extent how much steering lock "you" needed to be able to control the excessive front df so it wouldn't snap over steer. To make it work you had to raise the ride heights too so the suspension had a chance to work, but it didn't really matter what you set that to. Without doing weird setup tricks, 21 was around the best rear wing for general purpose. Then just play with rake.
     
  8. Joel Fernandes

    Joel Fernandes Registered

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    When will we have Push-to-pass update on this car?
    My point is, if the game now have this feature, why not to update this car and only include this feature in new content?
     
    Last edited: Feb 25, 2022
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  9. atomed

    atomed Member

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    Push to pass in this car? Don't you have enough with the DRS?
     
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  10. Lazza

    Lazza Registered

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    If you can ignore the attitude, the Class 1 regulations were to include both P2P and DRS I believe. So in that sense it's a fair question. Just the way it's asked leaves a fair bit to be desired.
     
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  11. Joel Fernandes

    Joel Fernandes Registered

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    Push to pass was in real life in DTM in the Class 1 prototype era.
     
    Last edited: Feb 26, 2022
  12. memoNo1

    memoNo1 Registered

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    I'm waiting for this!:D
     
  13. vava74

    vava74 Registered

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    The AI won't know how to use the Push-to-Pass, so off-line players are better off without it... :-D
     
  14. shiet

    shiet Registered

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    A bit late but I also tried the car. It's too fast for me. :D Too much downforce. As with the case with GT3 and GTE cars too, but that's just me, at least DTM doesn't (didn't) use ABS and TC (if I remember correctly) so there is some challenge I guess. :D Other than that it's awesome except for the engine sound.
    I don't know how this

    became how this simulated car sounds. Sorry to say but it's awful.
     
  15. vava74

    vava74 Registered

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    I actually believe that the sound is pretty approximate to the real thing.
    Maybe there is some tweaking on the new sound parameters for older content - Legacy - that you can do to improve the experience.
     
  16. shiet

    shiet Registered

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    Maybe we don't listen to the same thing:

    This is nothing like the onboard footage IRL. This is like some stupid vacuum cleaner + flying mosquito recorded and some barely hearable crackles added to that.
    Now I'm not complaining because it's a free car. But it's from S397 so I would've expected better than this.
     
  17. doddynco

    doddynco Registered

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    The RF2 BMW DTM car is based on a car that was never actually built, because the new DTM class 1 was scraped before it raced.

    DTM changed to GT3 regulations in 2021, with completely different engines.

    So the comparisons between those two vids aren't valid.

    Here is a vid of the actual engine that was supposed to be used: the BMW P48 2.0L turbo.



    It sounds exactly the same as the RF2 version, although the real one is using a slightly lower rev limit.

    I think the rf2 version sounds very good, one of the best if not the best sounding official cars.
     
  18. shiet

    shiet Registered

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    Are you serious?
     
  19. Simulation_Player

    Simulation_Player Registered

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    The video he posted is from 2020 year, actually more closer car to what we have in rf2 than 2019 video you posted.
    i don't disagree with your views, i think sound of M4 class 1 is good enough (apart from sound bug).
    But i don't understand what you meant by saying the comparison isn't valid.
     
  20. doddynco

    doddynco Registered

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    Ahh ok my bad I thought he posted a 2021 spec 'gt3' car.

    Well even so the in game car is still very close. Certainly not a problem car when it comes to sound.

    If you want to complain about shitty sounds try all the Tatuus cars and the flipping radical Sr3 (jesus christ)
     
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