Aleksandr, i see you try to push this to the limit (make a perfection drifting tyre simulation) but my point is to make something like legal "TempLock" in drift type servers, so drifters can use more powerful cars and go from car lots in to the fast tracks. I agree, that there are so much factors to study and make real drift tyre simulation, but also i think this is time consuming and loooong process of development.
4, 5 laps until tyre lost grip (1mm or less, also overheat).
In the real life competition runs we heat tyres before start (3-4 donunts second gear full throttle at the redline). If you heat the tyre right you feel how good car accelerates after initiation at full lock all the way to the finish.
Mean time in LFS (you can see in my video) - started with cold tyres and the grip is medium. First and second corner tyres heats up and grip is good, car pulls away from corner and gathering speed. Entering the last corner tyres are overheated, no grip, lost speed, rear end of the car is very slippy (in real life i can run in the same track 4 runs with same tyres, while in LFS 0.5 run). Me and my team mate (real life drifter) tryed lots of things to make our LFS as realistic as possible to our cars and find that 63 degrees in rear tyres with TempLock is a perfect thing. You can accelerate fast, make an agressive full lock entry and feel how tyres grip and car pulls away from the wall and speeds up. We use real life parameters in LFS cars (possitive rear camber, low rear tyre pressure and etc). Also in LFS we use SUPER tyres. NORMAL tyres is better to hold up temperature longer (so only these tyres are using in online servers) but they dont have that real life semi slick tyre feeling.
Overall i think tyre temperature locking / expanding in this case will fix a lot. You can try to set up TempLock at 63 degrees, 225/R17 SUPER tyres, 1bar, 500HP and you can feel how good it is.
Also, i think that i answered your last question already
Sorry for bad English but i hope that this discusion will lead somwhere
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