I tend to lower the steering ratio because I like to have a more responsive GT3 when I turn my wheel while putting very little angle.
Don't hesitate to raise the steering ratio by 1-2 clicks if you are used to playing with more steering ratio.

TC: - I recommend the TC8 for the sector 1, for Spoon Curve (maybe TC7 if you have a good feeling)
      - TC6 for Degner 1 and Degner 2
      - TC4-3 for the hairpin
      - TC5 for the 130R and the end of the track

HotLap/Qualifying lap adjustement:
- Target psi tyres 26,9-27
- Rear Toe: decrease 1-2 clicks if you want more turning OR don't touch
- Front Antiroll Bar: increase 1 click if you want more stable
- Rear Antiroll Bar: increase 1 click if you want more turning
- Preload diff: increase it will give you better speed in S1, but it will make it harder to pass the kerbs (Degner 1-2 and the last few turns) OR decreasing it will give you less speed in S1, but better passage over the kerbs. It's up to you to find the compromise. 
- Rear Ride Height: increase 1 click if you want more turning

Race adjustement (advice):
- Target psi tyres 27-27,1 (peak maximum during the lap 27,4 maybe 27,5 but it's a little bit too much)
- Rear Toe: don't touch
- Front Antiroll Bar: increase 1 click if you want more stable
- Rear Antiroll Bar: increase 1 click if you want more turning OR don't touch
- Preload diff: increase it will give you better speed in S1, but it will make it harder to pass the kerbs (Degner 1-2 and the last few turns) OR decreasing it will give you less speed in S1, but better passage over the kerbs. It's up to you to find the compromise. 
- Rear Ride Height: increase 1 click if you want more turning OR decrease 1-2 clicks if you want more stable
- Front Brake Ducts: it depends on the temperature
- Rear Brake Ducts: it depends on the temperature

My best lap with this setup: 1:57.667 (on a mega lap, there is the possibility of doing .5 low, so you can improve so much my time)

Good Luck and Have Fun.

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