Torque and tranny slipping?

I just downloaded a maz truck from here and tried to allow it more torque and higher rpm thinking it will allow to spin his own tire on 2-3 gear


What happen is the engine rev at 8000rpm and do go faster but it seem the tranny is like slipping or something? i mean i can go from 3k to 8k and only accelerate a bit faster i did put 5k torque too i may need 30k or something this truck is heavy gonna try again


Any idea what i should do? I just want to push that thing hard 100kmh +

 

Your clutch torque is to low. It has to match or be higher than the peak torque.

 

Thank you


Will try to increase it



Worked a bit but ended with no ability to go backward with some bug. could maybe lower thing but i put it back stock