WIP Beta released Tire Physics mod (GGT)

Discussion in 'Mods and Skins' started by LiXennn, Jun 6, 2025.

  1. LiXennn

    LiXennn
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    Hey everyone!

    I'm excited to share my mod called GhostGripTraction — a lightweight system that dynamically adjusts tire grip based on slip angle variation, sudden grip loss, and other subtle driving cues.

    It’s designed to make vehicle handling feel more natural and reactive, especially during transitions like cornering, sliding, or quick load shifts — without drastically altering the default behavior.

    IMPORTANT NOTE:
    This mod does not increase overall grip like many others. In fact, you start with slightly less grip than default, but the tire behavior is reworked with compensations to improve weight transfer and control.
    ➤ Faster and smoother weight shifts = better vehicle balance and less unpredictable snap-oversteer.
    ➤ It’s not meant to prevent drifting or force traction — just to make grip behavior more consistent

    ABOUT THE CODE:
    This mod has been created with Zesty_Maple98, the current modder of Tyre Wear and Thermals redux mod.
    so all both mods have the same structure.

    It may interfere with TWTR mod, I haven't really deep dived it.

    Feedbacks are welcome :)

    UPDATE ABOUT THE POST:

    As the mod as been published (I'm very happy) I want this post to be the main post for comments about the mod.

    https://www.beamng.com/resources/tire-physics-update-ggt.34861/
     

    Attached Files:

    #1 LiXennn, Jun 6, 2025
    Last edited: Jul 22, 2025
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  2. brunifdez

    brunifdez
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    A mod that makes beamng's handling even more difficult! I love it :oops:
     
  3. mambamambo69

    mambamambo69
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    Hello, just tried your mod in conjunction with the TWTR mod, and so far, I don't have anything to report. I just wanted to thank you for working on such a valuable aspect of the game.

    I will surely keep your mod in my stack and let you know if something weird pops up.

    Bon Dimanche :)
     
  4. LiXennn

    LiXennn
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    Thank you for the result, I tried a modified version of TWTR and had memory leak, the game gain 50 MB per minutes so after a session of 1 hour the game occupied 9 GB at West Coast map from 4 GB initially. So it might be due to the modified one and not the original.

    The coefficient of friction is based on 10 parameters so the more feedbacks I get, the more the mod will be fine tuned for better experience.

    Glad you're enjoying the mod , hope it will be in repo soon
     
  5. LiXennn

    LiXennn
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    I've seen some comments in other posts people who don't fully understand how the mod works — and that's totally fine. To help clarify things, I'll be releasing a video soon that explains how the mod functions, how it's based on a handling-focused simulation design (like those used in many sim racing titles), and how it will remain fully compatible with the upcoming new tire model.
     
  6. fihre boy

    fihre boy
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    does this work with tire gorilla mod? i would guess no because both modify grip of the tires
     
    #6 fihre boy, Jul 22, 2025
    Last edited: Jul 22, 2025
  7. LiXennn

    LiXennn
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    The current version of the Gorilla mod changes the physical properties of the surface material in contact with the tire, while GGT modifies the friction coefficient itself. So yes, both affect grip, but in completely different ways.
    For example, with the Bastion Trackday on West Coast (long version), the vanilla lap time was around 1:40. Using GTv11, I got a 1:37 lap time, indicating increased grip. With GGT, I stayed at 1:40 — the same as vanilla — which shows that GGT doesn't just boost grip but reshapes how it behaves.
     
  8. fihre boy

    fihre boy
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    so it works together?
     
  9. LiXennn

    LiXennn
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    yes
     
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  10. canapol

    canapol
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    Does it work with any vehicle
     
  11. LiXennn

    LiXennn
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    V10 added, about the update : Improved grip when locking wheels on dirt, plus a complete rework of the tire's lateral and longitudinal elasticity with memory effects. More grip when slip build-up increases, and reduced grip when slip gain drops.

    and for now I'm trying to figuring out how to add a custom traction control system with slip-angle dependency.

    This mod works with ALL tires.
     
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  12. LiXennn

    LiXennn
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    I added a new version with 100 Hz physics refresh instead of 500 Hz
     
  13. fihre boy

    fihre boy
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    whats the difference between 100 and 500hz versions?
     
  14. canapol

    canapol
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    Do you have to turn it on or is it always enabled And just to clarify this thing works with every tire not just the base Game tires
     
  15. LiXennn

    LiXennn
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    500 Hz is not good for soft tyre 50 Hz seems good, while 500 Hz is better for hard/ slicks tyre. I have to re writte the compensation I added. and differ the tick rate based of the compound of the tyre.
    I just realised my update is not good at all and have to withdraw the new one in the repo.
    it's always enabled
     
  16. canapol

    canapol
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    OK so I'm guessing it would work with the beam monsters Monster trucks to correct
     
  17. LiXennn

    LiXennn
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    I'd say yes but the elasticity compensations are too high, I'll released something better with adjustable tick rate, 400 Hz for slicks and 50Hz for rally tyres
     
  18. canapol

    canapol
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    If you want to test the three new ones out I'm talking about the version 10 the version 10 100 and version ten with 50 You have to put them in at one at a time Correct Or they work together in the mod
    folder
     
  19. LiXennn

    LiXennn
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    They work separately, and only one file has to be in the mod folder
     
  20. canapol

    canapol
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    I meant do I have to Delete one before I try the next one or can I put them Both in Or will it break the mods
     
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