Logitech Driving Force Gt Calibration. Reader Interactions Click Done, then click Done again to complete the calibration and exit the wizard. In practice, too much for me. I use 8. Brake pedal 3. Set Damper to OFF. This is what iRacing recommends. Rotate clamp knobs to tighten or loosen clamps. Brands such as Fanatec and Thrustmaster also have their own levels of settings that need adjustment before you are able to get started. This will bring up the FFB window….