I would tear it up in Horizon 1 or even Dirt 3 with all the assists off. I could consistently win online against people with controllers. I bought a TX for this game and get destroyed. I have tried numerous different calibrations but nothing feels right or even close to the old 360 wheel unless I turn on assisted braking and steering.
Below, find the list of wheels currently supported by Forza Horizon 3 on Windows 10 PCs. On Xbox One, Forza Horizon 3 supports all wheels currently supported by Xbox One. The list of currently supported PC wheels for Forza Horizon 3: Thrustmaster T150; Thrustmaster T500 RS; Thrustmaster TMX V1; Thrustmaster TMX V2; Thrustmaster T300RS