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(DATA REPLACEMENT) Porsche 911 Carrera RSR 3.0 Improved Physics by Arch 1.3

One more RR Porsche.

  1. Kyuubeey
    11.09.2019 Version 1.3

    - Changed front geometry

    09.09.2019 Version 1.2

    - Converted suspension to "coil springs" from "tbars" based on new info
    - Changed inertia
    - Changed rear spoiler dimensions, position, yaw sensitivity
    - Changed steering lock and ratio
    - Increased ARB coefficient to account for solid links
    - Lowered coast torque by 10
    - Adjusted one gear ratio to account for likely typo in data, thanks @Stereo
    - Corrected car mass for bug/feature? in STRUT
    - Corrected CoG for sprung mass calculation

    07.09.2019 Version 1.1

    - Changed front geometry
    - Corrected spacers, offsets, track widths etc.
    - Added UI folder which I seem to have forgotten
    - Thanks to @mike12345678 and @AlleyViper for data

    06.09.2019 Version 1.0

    • Initial release

    !!!IMPORTANT!!!

    Doesn't require shaders patch!
    Suggested alternative sound: RSR 3.0 sound by Fonsecker
    https://www.racedepartment.com/downloads/fonsecker-sound-pack-part-4-porsche-pack.13468/


    !!!IMPORTANT!!!

    Includes:
    Porsche 911 Carrera RSR 3.0 Group 4

    Credits:
    Physics and custom UI file by Arch/Kyuubeey
    UI file torque curves by x4fab's AC Torque Helper
    Everything else by Kunos Simulazioni
    Thanks to @mike12345678 and @AlleyViper for data


    INSTALLATION INSTRUCTIONS:

    The data.acd file is intended as a replacement used alongside the KS 911 RSR visuals
    or a fitting visual of your choosing. Visuals and sound are not bundled with the package.
    How to install:

    RECOMMENDED VISUALS AND SOUND

    RSR 3.0 = KS 911 RSR and KS 911 RSR or Fonsecker 911 RSR sound

    Installation instructions

    1.
    make 1 new folder on content\cars:
    arch_porsche_911_rsr_1974_grp4

    2.
    copy from folder ks_porsche_911_carrera_rsr
    all these files to the new previously created folder:
    arch_porsche_911_rsr_1974_grp4

    3.
    IMAGE_1.JPG
    Extract and replace all from the downloaded file

    4.
    use CM to Replace Sound (Bottom Right Icon) and select the Kunos 911 RSR 3.0
    IMAGE_2.jpg
    HansDG, Papifix, solyomtibor and 4 others like this.

Recent Reviews

  1. 4ph3x
    4ph3x
    2/5,
    Version: 1.3
    Mate, I don't want to be rude, but you really need to double check your sources and calculations. No way a 911 TRSR has a scrub radius of 99mm.
    Besides that the roll bar rates are a factor 10 too high..
    Are you sure about the front roll center height?
    1. Kyuubeey
      Author's Response
      Hello,

      Please, go and post your data in the support thread. Currently you are making baseless claims and I think you're just looking at KS cars.

      The wider track was reached via wheel spacers and lower offset wheels. You can see them in the homologation documents. It will affect the scrub radius, because they didn't relocate the strut mount.

      The rollbar rates are relatively accurate for solid links +- whatever % error I have in misjudging the inner diameters slightly: I calculated them and also cross-referenced to known data about link and wheel rates for known dimensions. The maximum front bar is a 35mm diameter bar, with a very high motion ratio. It's not unlikely to reach a few hundred thousand N. More serious aero cars can go into the millions. Depending on geometry of course, rear bars can be extremely weak as well if the links are right next to the chassis lever linkage: weaker than roadcar bars.

      The front RC is slightly lower than stock, I don't really see the issue. I didn't calculate it but it's something like 90 - 100mm perhaps. The front geometry has a quite high roll center if Porsche schematics and curves are to be believed. It's somewhat typical for strut suspensions of the time, especially in cars with worse rear suspension setups. I see you just opened the Kunos suspension analyzer and read the 170~mm roll center from there without considering how I achieved the ride height and geometry. Pretty cute.

      The rear RC is relatively accurate although I don't believe it is fully accurate in travel compared to the actual trailing arm.
  2. Peter Koslowski
    Peter Koslowski
    5/5,
    Version: 1.3
    Very good modification, I never drove this car in real, but thee is a mod for Automobilista (a very, very good one) and now I have it in AC! THX a lot!
  3. Cote Dazur
    Cote Dazur
    5/5,
    Version: 1.1
    Thank you for all your work and efforts in bringing better physic to cars in AC, what would be even greater would be if you could use all that knowledge and resources that you seem to have at your disposal and improve all the mod cars that need it so badly, instead of concentrating on Kunos cars. You say that you are improving them, which is nice, but they are not that far off to start with, if off at all. Most mod cars are completely off, with some exception of course, so your help with those would be invaluable. As for example you great physic work on the Skip Barber mod. Thank you again for all your work and for sharing with us.
    1. Kyuubeey
      Author's Response
      Hey,

      Thanks. To now I've only worked on KS cars which I really liked and wanted to see done better. Most of them really needed some improving as well.
      However KS is a company, while modders are individuals. I would consider it very inappropriate to just start publicly "fixing" mod cars without the author's approval, if the author can still be reached and is active. That is why every mod that I'm working on right now is under the author's blessing. And there's quite a few of those.

      If you wish to see some work being done for some cars and I have the capability for it and you can get a hold of the author for me, and they wish I help, you can message me either here or on Discord via Arch#0819 and maybe we can work something out. Chances are unless I already have the car done or a similar base, I won't however. It's a lot of work.
  4. leclettico
    leclettico
    4/5,
    Version: 1.1
    Nice, but "a double" of Kunos one. Minor modifications, but same lap time at Monza. The Kunos bank, with this mod, blow out the engine over 7,000 RPM. The Fonsecker one is preferable.
    1. Kyuubeey
      Author's Response
      Hey,

      Incorrect. Front and rear suspension are completely new and share nothing with KS. Engine curve is completely new. Gearbox, gear ratios, diff preload is changed. Aero is completely new, also shares nothing with KS. And of course the laptime is the same if both cars are largely correct speed-wise.

      I wouldn't really call it a minor modification. At all. Half of the car or more is completely new, and if Porsche's data is to be trusted, more accurate.
  5. tetzip
    tetzip
    5/5,
    Version: 1.1
    Excellent work from Arch
  6. FitzyDola
    FitzyDola
    5/5,
    Version: 1.0
    Well done as always from Arch.
  7. Leonardo Ratafiá
    Leonardo Ratafiá
    5/5,
    Version: 1.0
    wow this really drives like it should, right out of the default setup it 's really a joy to lap around any track. Thanks!
  8. hal4000
    hal4000
    5/5,
    Version: 1.0
    Truly excellent. Thanks.
  9. Amir Vodokotlic
    Amir Vodokotlic
    5/5,
    Version: 1.0
    Didn't see this coming! Nice. Another huge improvement over kunos car.
    1. Kyuubeey
      Author's Response
      Thanks. I don't know about "huge" because the KS car isn't so bad, but I tried my best.
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