Liijibg for a high grip tune for the 2017 Porsche 911 GT3 RSR

I 've had this car for 6 months. I tune all of my own cars and put in hours testing a tuning. But this one car i just can not get to work. The 2017 Porsche GT3 RSR. I 've tried everything with this car and nothing seems to work is still handles like dodo. I need help with this car. I run a lot is Road America and Mazda Laguna Secca. I m looking for a good handling tune for this car.

Take it .

Set up for the #92 Porsche GT Team 911 RSR :

Tuning Parts :

Motor :

1 : 1 .

Platform and road holding :

0 .

Gearbox :

1 : 1 .

Tires and Wheels :

1 : 0 , 2 : 1 , 3 : 1 , 4 : 1 : 65 , 5 : 1 , 6 : 2 .

Style and aerodynamics :

0 .

Conversion : 0 .

SET UP :

Tires pressures :

End of 2.0 Bars , push 11 times to the right ,
End of 2.0 Bars , push 11 times to the right .

Gearbox :

3.84
3.09
2.15
1.82
1.57
1.34
1.15

Alignment :

-3.4
-1.6
-0.2
0.0
6.8

Anti Roll Bars :

11.36
3.27

Springs :

126.4
115.2

9.6
9.0

( I don’t know whats the settings displayed for the imperial vers . )

Shock Absorbers :

4.6
3.5
2.1
1.6

Aérodynamism :

121 + 2
153 + 1 .

Brakes :

56%
107%

Différential :

89%
84% .

Have Fun .

With that , there is my joystick settings , to be faster :

2
24
40
65
4
47
2
27
3
73
89

Good luck . ( I applause lol )