Brian Koponen

Programming and Tech Tips

Assetto Corsa - Best Thrustmaster T248 Wheel Settings

Assetto Corsa remains one of the best games to play with a force feedback wheel. It's still the game I compare all others to when it comes to the driving feel. The force feedback feels great on the Thrustmaster T248, but there are a few tweaks that can be made to get the most out of it.

The Assetto Corsa series supports using a LUT to calibrate your wheel's force feedback response. While this is useful for the lower-end TMX, T150 and Logitech G-series wheels, the T248 doesn't need a LUT at all. In fact, using one actually makes the force feedback worse, making the lighter forces nearly undetectable.

The main consideration with the force feedback is to make sure it doesn't try to output a force so strong that the wheel can't reproduce it, commonly known as "clipping." There is an easy solution in the form of an in-game app that prevents this from happening.

In this guide, I will show you where to download the app as well as the settings to use in the Thrustmaster Control Panel, on the wheel and in-game to get the most out of the force feedback.

Downloads

Download FFBClip from Race Department. You will need a free account to do so. On the Register page, scroll all the way down to the bottom to create a free account.

To install, extract the rar file and copy the apps and content folders into:

Steam Library\steamapps\common\assettocorsa.

In Assetto Corsa, enable FFBClip in Main Menu > Options > General > UI Modules. Now it will appear as one of the UI elements on the right side of the screen.

Thrustmaster Settings

Assetto Corsa automatically sets the proper steering angle for each car, so it is best to leave the rotation set to the maximum in the Thrustmaster Control Panel and on the wheel.

On-Wheel Setting Value
ROT 900°
FORCE 4
FFB 1

FORCE at 4 bars with FFB at 1 creates a perfectly linear force feedback response with no clipping, which is the ideal for any racing game.

TM Control Panel Setting Value
Rotation 900°
Overall Strength of all forces 65%
Constant 100%
Periodic 100%
Spring 100%
Damper 100%
BOOST Off
Auto-Center by the game

Rotation and Overall Strength are identical to the ROT and FORCE wheel settings, respectively. Changing it in one place overwrites the other. I recommend changing these on the wheel and ignoring the values in the Thrustmaster Control Panel.

Spring is not used by Assetto Corsa, so the value actually doesn't matter. I leave it at 100% since it is important in other games.

Damper is used by Assetto Corsa to add weight to the wheel, most noticed when the car is stopped.

BOOST should always be turned off. For an in-depth look as to why, see my BOOST Force Feedback Analysis.

Assetto Corsa Settings

In Options > Controls > Advanced > Steering Settings:

Setting Value
Gamma 1.00
Filter 0.00
Speed Sensitivity 0.00


In Options > Controls > Advanced > Force Feedback:

Setting Value
Gain 100%
Filter 0%
Minimum Force 2%
Kerb Effect 15%
Road Effect 8%
Slip Effect 0%
ABS Effect 10%
Enhanced Understeer Effect Disabled
Half FFB Update Rate Disabled

Gain is the overall strength of all forces. Leave this at 100%. The FFBClip app will adjust the gain automatically as you drive.

Filter smooths out spikes in the force feedback. I don't find this necessary on these wheels.

Minimum Force raises the lightest forces to a level where they can be felt on these wheels.

Kerb Effect vibrates the wheel when you run over a kerb. This is a canned effect that adds a vibration for every kerb and even when you run off into the grass. With this set to 0%, you will only feel the bigger kerbs that actually effect the physics of the car. Even though it's not realistic, I like this effect at a low level, but that is a personal preference. It's a light effect, so you can raise this quite a bit if you like it.

Road Effect is the vibration felt based on the road surface. If you use this at all, I would set it no higher than 15%. Setting it much higher than that feels unnatural and can get very annoying.

Slip Effect vibrates the wheel when you lose traction. I find this more distracting than anything, so I turn it off completely.

ABS Effect vibrates the wheel when ABS engages. Setting this too high can be more distracting than it's worth.

Enhanced Understeer Effect lightens the wheel to a higher degree during understeer. This feels unnatural to me, so I turn it off.

Half FFB Update Rate causes the force feedback calculations to run on every other frame. This could help your frame rate on older computers.

FFBClip Settings

If you haven't already, download and install the in-game app FFBClip using the instructions on that page.

To get the most information from the wheel as possible, you want to make sure the game never sends more power than the wheel is capable of handling ("clipping"). In the previous step, we set the Force Feedback Gain to 100%. Left at this, the forces would clip constantly, making the wheel feel terrible.

The FFBClip app automatically adjusts the force feedback gain level as you are driving to maximize the forces without clipping. You can adjust the FFBClip strength setting to your preference for a lighter or heavier feel.

During your first lap or two, you will notice the force feedback change as it sees the power clipping, but it will even out as it dials in on the best setting. Once it settles in to a feeling you like, just hide the app and it will no longer update (as long as "Run in Background" is unchecked.)

There is a Dynamic Mode in the app that tries to maximize the forces at all times. On a straight, it will raise the force feedback levels and then drop them in a corner where the forces are very high. I find this more distracting than helpful, but you should try turning it on and off to see which you prefer.

Conclusion

I'm so impressed by this game. It feels so good to play, even after all these years, especially on these wheels.

Let me know if you have any questions or comments.

Question or Comment?