Weird tire strain?

  • Thread starter Thread starter oohhh yeah
  • 5 comments
  • 790 views
oohhh yeah

oohhh yeah

Messages
528
Messages
oohhh8yeah
On the 250 GT, the diagonal wheels get red/strained while cornering...which is very strange. Why? I'm sure it has to do with the diff. IS, AS, and BS is all at 0 for stock diff. What does that mean? What kind of real life diff is 0,0,0? With a custom diff the car gets very loose....not really sure how to tune this thing.
 
I can imagine it' easily possible to overload the outside front and the inside rear, especially whilst trying to accelerate out of the corner.

The spinning inside rear can be helped by loosening the acel setting (smaller number). That will need to be adjusted in conjunction with the inital LSD setting as well.
 
0 for all different settings is an open differential where the wheels aren't locked. This means the inside wheel will spin when power is applied.

When you turn, the outside front wheel gets overheated and turns red, then when power is applied the inside rear wheel spins and overheats and turns red.
 
0,0,0 is a standard open diff. I believe LSDs were an option on Ferraris at that time, but perhaps this particular car (it does have a particular serial number in the game) doesn't have one.

EDIT: my advice for tuning, coming from my GPL experience, would be to set everything to 5 on the custom diff, and start increasing the accel setting until you get a nice "adjustability" to the direction of travel via the throttle mid-corner.

If you're oversteering into the corners under deceleration, increase the decel setting slightly or trail the throttle a tiny bit, even (esp.) on the brakes. If you have a high accel and decel setting, you'll probably need a higher initial setting to prevent the car doing weird things as you transition between accel / decel through "neutral throttle", which gives a sort of unpleasant "spikiness".
 
Last edited:
A dif with 0,0,0 settings is an open differential, which is much more common than the limited slip differentials (LSDs).

About the wheels diagonally placed overheating:
When in a corner putting down the power, the natural tendency is that the power will be distributed to the wheel with the least resistance. In a corner, the dynamic mass distribution of the car will be higher on the outside tyre, so putting down the power will result in the inner wheel having less resistance and therefore receive more power. The result is an inner back wheel that overheats. And when taking the corners too fast, the outer front wheel can overheat too due to the dynamic mass resting on that tyre, demanding too much lateral grip from it.
 
The short of it is that it points both to you overdriving the car through the corner and the lack of an LSD allowing you to spin up the inside wheel as you apply the throttle.
 
Back