steering rack ratio

Is there a standard ratio or rule of thumb? Whats the norm?

Does it make a difference from a F500/600 to FA?

Thanks

You might ask the question in terms of the ratio of steering wheel to tire. The ratio of the rack is only one component.

A starting point might be 180 degrees of steering wheel rotation to 20 degrees of tire rotation.

And that should be further qualified to mean out side wheel rotation as the inside tire will be something different, most likely.