The pits need to be defined as surface in every layout`s "\data\
surfaces.ini"
[SURFACE_1]
KEY=PIT
FRICTION=0.97
DAMPING=0
WAV=
WAV_PITCH=0
FF_EFFECT=NULL
DIRT_ADDITIVE=0
IS_VALID_TRACK=1
BLACK_FLAG_TIME=0
SIN_HEIGHT=0
SIN_LENGTH=0
IS_PITLANE=1
VIBRATION_GAIN=0
VIBRATION_LENGTH=0
In each track`s model the bit of road for the pits needs to bear the name "1PIT**", not "1ROAD_33" as found in "_reverse" for example. Then it starts to impose the 80 kph limit and the cars are not solid and collidable.
Other different surfaces that are readily available in your track can be defined by renaming the patches of "TarmacLight" and "TarmacDarkPit" from "1ROAD_**" to "1TARMAC_**" and "1TARMACD_**" and giving them a different slight vibration in [SURFACE_2] "KEY=TARMAC" and [SURFACE_3] "KEY=TARMACD".
On the wet layout you might want to set the friction of all surfaces to ~0.85 to better emulate the wet road. That would decrease the excessive tire squeal too.
There is >1GB of repeated textures in the track`s folder now. Better to separate the grids, roads, walls, terrain, buildings and trees into several .kn5 models and change what loads with models_***.ini.
The reorganized models (without the skins)
you can load from here and spend more time organizing and compressing textures in .dds, please. The track needs more serious work as it easily overfills the memory on PC`s with 8GB RAM. It`s WIP, not "v1.0". And to not come across negative I`m giving you one more little gift in the attachment. Unpack in "..\AssettoCorsa\extension\config\tracks\loaded\" and try changing the months in Sol.