Heya,
What a dramatic thread title!
A short point I want to make where us simracers can cheat a bit; the steering ratio. Assuming we have the right Fanatec or Logitech wheels, we can use anything up to 900 degrees on our steering wheels. Depending on the car we drive in the sim, we can set the steering lock somewhere between 15 and 35 degrees, depending if its a F1 car or road car for example.
The ratio between the rotation you use on the wheel and the value you set in the car setup is quite critial. A Corvette Z06 ''supercar'' has a steering ratio of 17.2:1. This means you have to turn the steeringwheel 17.2 degrees for the front tires to turn one degree. I also know a modern single seater car with a 14.5:1 ratio. Perhaps forum users know a few more real life values. In order to get somewhat correct steering sensitivity, it makes sense to copy these values in your simracing hobby. Here is how.
17.2:1 real life steering ratio: Divide your wheel setting, say 900 by this, so 900 / 17.2 = 52.3 degrees. This is the *total* steering, so you have to take half of this: 52.3/2 ~ 26 degrees. This is you car setup value.
For a single seater, its unlikely that they have 900 degrees of steering. Perhaps you know that the car has a 14.5:1 ratio and that the maximum steering is 17 degrees one way, making 34 degrees total. Then you have to set the wheel limits to 34*14.5 = 493 degrees, and set the car setup to 17.
That makes sense. The reason I'm posting is that plenty of people aren't comfortable with 900 degrees. Yet they do want 34 degrees of lock in the car setup. Say you use 450 degrees on your wheel and 34 in the car setup, this is a whopping 6.6:1 steering ratio!
That is almost 3x more sensitive than an already sensitive Corvette.. Your drive will be very sensitve, twitchy and unrealistic as a result.
Its much much better to learn how to use 900 degrees on cars that do actually have this much in real life; learn how to re-grip the wheel. Its tricky but driving with a rack that is over 2x too sensitive throws any ''Its a simulation!'' arguments out of the window!
See attached table for some guidelines.