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R34 GT-R V-spec Scratchmade Improved Physics by Arch 2.2

Skyline GT-R as it was originally intended.

  1. Kyuubeey
    13.10.2019 Version 2.2

    - Calculated rollbars
    - Changed rear MR based on new data
    - Changed rollbar setup design for tuned cars
    - Changed ATTESA lock curve
    - Adjustment for damper oversight
    - Removed TA; redundant and unsupported

    27.09.2019 Version 2.1

    - Changed rear geometry slightly
    - Changed front rebound damper stroke 70mm -> 60mm
    - Changed front bumpstop thickness 60mm -> 50mm
    - Updated colliders from 4x to 2x
    - Adjusted KERS and EDL value for new axlespeed that I forgot
    - Default SM tire pressure to 24, closer to ideal
    - Tire changes
    - Accounted CoG for sprung mass calc
    - Changed throttle graph
    - Adjusted FFB

    14.08.2019 Version 2.0

    - Changed front UCA geometry to correct sizeable mistake
    - Changed front UCA Z-coordinate placements a bit more accurate
    - Made some sense of ARB rates and ARB motion ratios
    - Changed brake bias 1% more forward
    - Changed ABS
    - Changed negative LonG ATTESA behavior
    - Lessened preload in TA front differential

    12.08.2019 Version 1.9b

    - Changed rear ARBs slightly softer based on new data
    - Changed default ARB setup for tuned cars
    - Corrected wrong stock height and alignment: oops!

    10.08.2019 Version 1.9

    - Adjusted rear suspension
    - Adjusted alignments
    - Adjusted ATTESA lock curve slightly
    - Some minor tire changes

    26.07.2019 Version 1.8

    - Changed S1 design
    - Changed suspension strokes on S2, S3 and TA
    - Adjusted RCAs and alignment on tuned versions
    - New tire camber sensitivity values
    - Adjusted tire peak slip
    - Adjusted autoshifter and autoclutch

    03.07.2019 Version 1.70b

    - Changed rear tie rod position based on new data
    - Fixed some left-over legacy values in S-cars
    - Adjusted alignment range for rear camber
    - Adjusted alignments

    25.06.2019 Version 1.70

    - Tweaked ATTESA LonG curve
    - Tweaked ctrl_awd2.ini filter values
    - Corrected bumpstops: I had misinterpreted data
    - Adjusted toe geometry slightly
    - Corrected rear positive camber setup option
    - Corrected S3 vs TA front camber setup
    - Removed HICAS from S2
    - Adjusted FFB slightly higher
    - Added empty.lut

    15.06.2019 Version 1.60

    - Added Time Attack version
    - Split up old S3 into S3 and Time Attack
    - Corrected rebound steps on S3: 17, not 16
    - Changed S3 dampers knee

    31.05.2019 Version 1.50c

    • Suspension changes
    - Corrected alignment, ranges to be closer to reality
    - Adjusted S1 default alignment
    - Adjusted S2 default alignment
    - Increased S3 caster to maximum OEM specification
    • Electronics changes
    - Remapped ATTESA lock curve slightly

    29.05.2019 Version 1.50b

    • Engine changes
    - Modified power curve close to and above rev limit as per suggestion: probably closer to reality
    • Suspension changes
    - Corrected faulty packers implementation in all cars

    19.05.2019 Version 1.50

    • Suspension changes
    - Corrected stroke ranges
    - New damper design for S3
    • Tire changes
    - Misc changes to slip behavior
    • Engine changes
    - New engine design for S3
    • Electronics changes
    - Remapped ATTESA lock curve slightly
    • Aero changes
    - New sensitivity for chassis surfaces
    - Rear wing angle defaults to 30
    • Other
    - UI rear ride height closer to real
    - Misc changes to drivetrain, engine
    - Adjusted inertia length lower
    - Misc UI changes

    21.03.2019 Version 1.45


    - Suspension changes
    - Corrected front geometry slightly
    - Redid rear geometry based on schematics and measurements: wrongly implemented before
    - Implemented S3 front camber arms to light tuned cars
    - Electronics changes
    - Changed HICAS logic
    - Remapped some HICAS curves
    - Remapped ATTESA lock curve: more realistic mid-corner, exit and drift behavior
    - Drivetrain changes
    - Removed front LSD from light tuned cars
    - Corrected some LSD preload values
    - Misc changes
    - Added a nice, more appropriate F6 camera

    15.03.2019 Version 1.4

    Old setups are not compatible.

    - Suspension changes
    - Corrected rear caster axis and upper arm wheel joint height
    - Result is closer camber/toe curve and hopefully more accurate coasting behavior
    - Electronics changes
    - Adjusted ABS
    - Brake changes
    - Adjusted bias
    - Adjusted force

    13.03.2019 Version 1.35

    - Tire changes
    - Changed grip dropoff and minimum level
    - Removed shader patch tire raytracing until fixed
    - Suspension changes
    - Changed S3 version rebound valving
    - Removed HICAS from S3 version: for now just disabled
    - Electronics changes
    - Adjusted ABS

    08.03.2019 Version 1.32

    - Removed height adjustability from stock: left in as a mistake from a dev testing build
    - Corrected version moniker in car UI from 1.2 to 1.32

    08.03.2019 Version 1.31

    - Re-packed and re-uploaded files, in case of corrupted files

    06.03.2019 Version 1.3

    - ATTESA changes
    - Slight change in ATTESA preload behavior
    - Changed steer.lut
    - Tire changes
    - More accurate grip dropoff and minimum level
    -Suspension changes
    - Slight change to rear tie-rod geometry
    - Modified anti-forces in rear geometry
    - Fixed measurement error in RLCA

    15.02.2019 Version 1.2

    - Added S2 version
    - Added LonG ADD to ATTESA logic: still somewhat WIP
    - Added pseudo-preload to more closely resemble R33 and R34 ATTESA
    - Adjusted suspension forces
    - Minor suspension design tweaks:
    - Wheel spacers to S2 and S3
    - Expanded, but also more closely resembling real-world part camber adjustability to tuned cars
    - Minor tire physics changes
    - Removed year indication from UI names: redundant due to CM functionality

    12.02.2019 Version 1.1

    - Added S3 version
    - Minor physics changes
    - A-LSD code minor bugfix
    - Updated installation instructions

    10.02.2019 Version 1.02 Hotfix to the hotfix!

    - Removed KS R34 GT-R sound, as it is part of a paid DLC! I am very sorry for the inconvenience.

    10.02.2019 Version 1.01 Hotfix

    - Added sfx folder and R34 GT-R sound for ease of installing


    Requires Shaders Patch by Ilja Jusupov aka x4fab

    Relies on Shaders Patch physics changes, will crash otherwise!


    Modified, scratchmade physics for R34 GT-R V-spec and additional versions.

    BNR34 V-spec
    BNR34 V-spec S1
    BNR34 V-spec S2
    BNR34 V-spec S3
    BNR34 V-spec TA

    The R34 began as a mod, 3D modeled by Ma7heus, and I worked alongside him, years ago.
    I wanted to do it like it should have always been.

    Physics and custom UI file by Arch/Kyuubeey
    V, S1, S2, S3 and TA version icon by Content Manager
    Everything else by Kunos Simulazioni

    Special thanks:
    Ma7heus for creating the original 3D model back when the car was a mod
    MisterCognac for suspension measurement, data, advice and testing (R33)
    AshNismo for suspension measurement, data, advise and testing (R32)
    Kade for assisting in figuring out the electrical systems
    Venitros for driving opponent cars during testing
    baker7498, stereo, mclarenf1papa and Leonardo Ratafiá and many others for help


    The data.acd file is intended as a replacement used alongside the KS R34 GT-R visuals
    or a fitting visual of your choosing. Visuals and sound are not bundled with the package.

    How to install:

    Manual method:
    1: Copy and paste the folder "ks_nissan_skyline_r34" in the "cars" folder
    2: In the mod's .rar, navigate to: "Installation files/MODS/Modified physics for R34 GT-R V-spec/content/cars and choose what car you want to install
    3: Rename "ks_nissan_skyline_r34 - Copy" into the folder name of the car you wish to install
    4: Copy and replace "ui", "sfx" and "data.acd" into the new car directory from the correct car's files in the mod's .rar
    5: Navigate to the new car's "sfx" folder
    6: Rename "ks_nissan_skyline_r34.bank" into "carfoldername.bank" EXAMPLE: m7_nissan_r34_gtr_1999_vspec.bank
    7: Repeat for every car you wish to install

    The .bank file must correspond to the entries in the GUIDs and be the exact same as the car's folder name. Replacing sound via CM works as well!

    Alternative installation instructions by Leonardo Ratafiá

    make 5 new folders on content\cars:

    copy from folder ks_nissan_skyline_r34
    all these files to the new previously created folders
    Extract and replace all from the downloaded file

    4. use CM to Replace Sound (Bottom Right Icon) and select the Kunos R34 Skyline


    Refer to Content Manager mod installation instructions.
    If it doesn't work as intended, I'm sorry, I manually install everything and am not familiar with it.

Recent Reviews

  1. Amir Vodokotlic
    Amir Vodokotlic
    Version: 2.2
    Keeps getting better and better.
  2. Titoxarly
    Version: 1.7
    Gran trabajo!!
  3. Błażej Wianecki
    Błażej Wianecki
    Version: 1.50
  4. CobraCat
    Version: 1.50
    Tip Top !
  5. Błażej Wianecki
    Błażej Wianecki
    Version: 1.45
    Great! I’ve been a fan of this project since the beginning. I feel like it all started to really come together this update. The behaviour of the car is really pleasent in slow to mid speed corners. It neutralizes so nicely on throttle. The yaw looks so cool on replays. I still see one or two problems though. I’m gonna report them in support section later.
    1. Kyuubeey
      Author's Response
      Hey. Thanks for the review. Please do remember to report the issues! I'm still changing things on a design side but I'd like at least the major bugs to be squished for 1.5.
  6. Billy Pilgrim
    Billy Pilgrim
    Version: 1.4
    This is really good work. A big improvement!
    Thank you.
  7. Sanch0z
    Version: 1.32
    An excellent mod. Car became more agile and ATTESA represented much more faithful
    Version: 1.32
    The actual feel of the car is great but i have a problem were the wheels vibrate alot and send harsh/sudden vibrations through my steering wheel? its almost as if im running over stones on the track but i've never had this with any other car before?
    1. Kyuubeey
      Author's Response
      Hm, yes. This came to my attention only recently. I have investigated the matter. Perhaps later I can release a hotfix that will disable one shaders patch feature, but also seems to fix the issue. I believe it does NOT happen on 0.1.24 and instead happens on 0.1.25 Preview 49, so if you don't want to wait, you *can* downgrade to 0.1.24. I also ran into the issue recently after upgrading from 0.1.24, hence I missed it. Sorry!
  9. Rogerbee
    Version: 1.32
    Great little mod, turns a great car into a brilliant one!
  10. tetzip
    Version: 1.32
    Feels very real, good controllable!
  11. eclip2
    Version: 1.3
    Awesome physics upgrade. Nice change from unpleasant understeer to pleasant oversteer. Godzilla is more lively now and fun to drive.
    There are two thing though - maybe it's mine poor driving skills but it's quite hard to brake from high speeds. Car has tendency to lose traction and start spinning.
    And the other thing is that sometimes car wheels start to bounce a little without any reason.
    1. Kyuubeey
      Author's Response
      Hey. Could you please post in more detail about your issues in Support? Thanks. I'll need more description to know if those are issues or design.
  12. DumitruM
    Version: 1.2
    After this update, I have to say the cars are much more docile and predictable, yet plenty of fun. I enjoy driving all of them, the S1 and S2 being my favourites of the pack. Congratulations on this physics pack, I'd recommend it to anyone who wants a proper R34 in the game! This time I'm giving you 5 stars for the amount of work you put into this and for the way the cars made me smile driving them on LAC
  13. Leonardo Ratafiá
    Leonardo Ratafiá
    Version: 1.2
    much better handling now, thanks!
  14. DumitruM
    Version: 1.1
    I enjoy that fact that it doesn't plough through the corners anymore and it's easier to make it go sideways, I find it hard to control most times, feels a bit too tail-happy. I'm not sure if it's from my end or something's not set right, but I'll give you 5* because I appreciate all the effort you put into making this mod.
    Maybe I'm driving it wrong, if you have some tips regarding this I'd greatly appreciate it
    1. Kyuubeey
      Author's Response
      The behavior is not very much off: the car actually is quite tail happy. However there are hard limitations to the electronics in AC which might influence it somewhat in some situations. The R34 for example has an upgrade over the 33 in the form of pre-defined behavior maps for the HICAS system, and the input runs through those maps BEFORE it gets to any of the existing curves. Not doable in AC sadly. However it shouldn't be *too* off.

      I will be taking a look at the tires for the next release, though. I feel they need some minor tweaks: but it's almost there.
  15. robnitro
    Version: 1.1
    2 issues:
    drivetrain.ini ->AUTO_CUTOFF_TIME=0 should be like stock of 240- otherwise paddle shifting hits limiter between shifts Why did you change that??

    Also, it will not load in CM, and analyze gives an error which fixing helps it load:
    Invalid HEADER/VERSION parameter
    This fix ends up rewriting the data.acd file...
    1. Kyuubeey
      Author's Response
      Replace sound in CM. Most likely the issue. There are no other common installation errors that I know of if installing manually. I don't know how the CM install will go. *About the autoshifter, I will look into it, but I didn't change anything from 1.02 to 1.1 regarding that.* Cheers.

      *CORRECTION: Ah, that value. It should be 0. There is no automatic cutoff in any Skyline GT-R. Lift off the gas with paddle shift as well. No issue.

      *CORRECTION TO CORRECTION: Hm, I will investigate. It is possible that the value is disabled when using H-pattern, or something similar. There should *definitely* be no cutoff when using the correct input devices, but I will test for compatibility with paddles later. For now, feel free to change it yourself if you want to. I will investigate and correct it some time later. Thanks.
  16. luxj
    Version: 1.02
    Drives great
  17. tetzip
    Version: 1.02
    Many thanks for your awesome work. Both cars feel a bit more loose but are much controllable. Feels like in Real life.
  18. snej97
    Version: 1.02
    I appreciate mods that want to improve physics to become more realistic.
    Both versions feel really good when driving on nordschleife.
  19. Emjayy
    Version: 1.02
    Tested both versions on shuto, the way it handles is phenomenal
    I never really was into awd cars but this thing takes the corners so good + you can make it slide ;p
  20. robnitro
    Version: 1.02
    Awesome! I like when physics get improved to be realistic!
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