The following settings are those that I used with the Moza R3. In my opinion they do improve the feeling of the somewhat limited R3, at least when it comes to precise circuit driving. These settings provided me with the best 'feeling' in the wheel when I tested the R3 with the Porsche Cup. Copy the settings below to try it out.
The maxed out inertia and wheel friction settings below are specific to the R3 - I use them to add 'artificial' weightiness to the wheel as the Porsche Cup car has quite a 'wafty' steering rack. Other cars may have much more positive steering which makes this setting unnecessary, but you can tweak Inertia and Friction if you feel as though the steering is too 'sludgy'.
FFB Curve:
X: 0% / Y: 0%
X: 20% / Y: 25%
X: 40% / Y: 45%
X: 60% / Y: 65%
X: 80% / Y: 85%
X: 100% / Y: 100%
Brake Curve:
X: 0% / Y: 0%
X: 20% / Y: 6%
X: 40% / Y: 15%
X: 60% / Y: 30%
X: 80% / Y: 60%
X: 100% / Y: 70%
iRacing Settings:
To adjust the strength of the force feedback in-game, you can adjust the Force setting in the F9 black box (Press F9 whilst in the car to see it)
I hope you find these settings to be good, but if not - no worries. We prefer different things and are wired to listen to different force feedback signals.
Cheers!