I have been looking on Forms and discussion of multiple users, Lots say that Forza does not support the AF V2, but Simxperince themselves said they have support. I would just like to be informed before trying to set up my steering wheel.
I have been using the Accuforce Pro V2 with FH4 on the PC for well over a year now and enjoying it immensely. Using the typical Accuforce Pro V2 setup and telemetry, you will be limited to 60-70fps (which isn't ideal but nonetheless works reasonably well). I also suggest using the sim steering mode and disabling all assists. This will put you at a disadvantage in cross country and drifting activities when compared to xbox style controllers but using a wheel is just so much more enjoyable. Note: while you can certainly slide around a few corners, sustained drifting is all but out of the question on the wheel.
You will also want to look into tuning your own cars for the wheel or using more balanced setups (as stock setups are really bad). A good starting point is usually FRT Muka Romero (sp?) for in game car tunes. For what it is worth, FH4 is also a great deal of fun on full motion platforms.
Below are some starting values for you (Some are a bit unorthodox so feel free to adjust to your own taste...)
Forza Horizon 4 in game FFB settings: Vibration scale: 0, FFB scale: 50, Center spring scale: 0, Wheel damper scale: 0, FFB understeer scale: 50, FFB minimum force: 5, Steering Sensitivity: 60
Forza Horizon 4 HUD settings to activate SC4: Data out: ON, Data out IP address: 127.0.0.1, Data out IP port: 10001
SC4 settings: Rotation: 900 degrees, Smoothing: 0, Intensity: 75-100 percent. Higher gives substantially more nuanced input. So, start at about 95% and then reduce to your own comfort level.
Game FFB: 80%, Game FFB smoothing: 13.33%, Accuforce fluid dampening, friction and inertia: off, Dynamic oscillation control: 100%, Engine RPM 10.55%, Steering FFB foundation: 10%
Let me know if you need any additional help.
P.S. Wait till any season but Winter to dial in your wheel/FFB. You can still enjoy racing around in winter but don't bother adjusting things too much till the roads are drier.
There are two areas to consider here:
-Basic force feedback support without Sim Commander
-Advanced features support with Sim Commander
Both will function with Forza Horizon 4 (FH4),however, it was eventually learned that FH4 is based on the UWP application architecture and as a result has some basic force feedback limitations. In short, it isn't able to fully conform to the Microsoft force feedback standards that we and most other direct drive wheel makers use while maintaining peak graphics performance. My understanding is that this is due to fact that they have a single processing thread shared for physics, graphics and force feedback rather than splitting these out into individual processing threads. To explain any further I would need to get into details of blocking driver function calls drivers and programming frameworks, so I'll leave you with: FH4 will work but won't achieve peak graphics performance with any wheel that fully conforms to the Microsoft force feedback driver standard. HOWEVER, it is believed that the issue is understood by the Forza team so we have hope that this won't be a problem with FH5.