When setting up sim monitors for iRacing, most drivers focus entirely on distance and FOV calculations. But there is another critical measurement that gets overlooked: the vertical height of your screens relative to your eyes.
If your screens are mounted too high, looking ahead forces you to tilt your head back, causing neck fatigue. Even worse, looking up at an artificial horizon warps your perception of hill crests and downhill braking zones like the Corkscrew at Laguna Seca.
Sit in your normal driving posture and look straight ahead with a level chin. Note the exact horizontal line where your eyes land on the monitor panel. In an ideal setup, your eyes should sit between one-third and one-half up from the bottom of the screen.
Press Ctrl + F12 during a replay in iRacing to open the Cockpit Camera tool. Adjust the Orient P (Pitch) or Vanish Y setting until the flat on-screen horizon line sits dead level with your real-world eye line, then click Save Car.
Unless your rig features an extreme formula lay-down seat, keep your monitors standing completely plumb (90 degrees to the floor). Angling screens downward creates vertical parallax that makes side bezels impossible to line up.
Drive up Raidillon at Spa or the uphill esses at Watkins Glen. If the track seems to climb into your ceiling rather than out through your windshield, lower your in-game cockpit pitch angle and reduce head motion so the car stays stationary.
Natural Driving Posture
Lining up your real eye level with the in-game horizon lets your brain process track elevation naturally. Your neck stays relaxed, and cresting blind hills feels instinctive.