Assetto Corsa Competizione setup work can feel intimidating because the menus are full of sliders. The good news: you can get 90% of the performance by focusing on a small set of fundamentals and ignoring the rest until you’re consistent.
This guide teaches the “high-impact basics”: tyres, brakes, electronics, and a simple workflow that keeps you from getting lost in the garage.
The rule that makes setups easy
Do not change multiple things at once. Setups are a feedback loop. If you change three sliders and the car feels better, you won’t know why — and you can’t replicate it on another track.
Step 1: pick the right baseline preset
- Start with a stable preset for learning: something that gives you predictable behaviour.
- Once you can do consistent laps, test a more aggressive baseline.
- Use the same car/track combo for comparisons.
Step 2: tyre pressures (the #1 performance lever)
In ACC, tyres are happiest in a fairly narrow hot pressure window. The exact number can vary by conditions and updates, but the principle is always the same:
- If hot pressures are too low, the car feels vague and slides early.
- If hot pressures are too high, grip drops and the car feels nervous.
Workflow: do 3–4 laps, look at hot pressures, then adjust cold pressures so your tyres land in the target window after they warm up.
Step 3: brake ducts and temperature control
Brake ducts are your “temperature manager”.
- Close ducts if brakes run too cold (more bite early, but risk overheating in traffic).
- Open ducts if brakes overheat (more consistency over a stint, especially in endurance).
Brakes that are too hot can create long-pedal feel and inconsistent stopping distances.
Step 4: TC and ABS (use them like tools, not crutches)
- Traction Control (TC): higher values reduce wheelspin but can kill rotation on exit.
- ABS: higher values reduce lockups but can extend braking if too intrusive.
Adjust these based on the corner type:
- Spinning on exit? Increase TC slightly.
- Understeer on exit? Decrease TC slightly and be smoother with throttle.
- Locking under hard braking? Increase ABS or reduce brake bias/peak force.
Step 5: brake bias (the easiest way to balance entry)
Brake bias changes how the car rotates on entry.
- More front bias: safer, more understeer.
- More rear bias: more rotation, but higher spin risk.
Small changes (0.2–0.5) can make a big difference.
Hardware note: setups only work if your inputs are repeatable
If your braking is inconsistent because your seating position changes or your pedal deck moves, you’ll chase setups that don’t exist.
- Use a rigid foundation like SIMGASM Club simulator.
- Make your brake repeatable with the principles in Load cell pedal setup guide: brake calibration, force and feel.
- Comfort matters: SIMGASM Core Recline seat is a great long-session option.
Recommended SIMGASM gear for this guide
- Entry level: SIMGASM Hobby simulator for a clean first rig foundation.
- Most universal: SIMGASM Club simulator with a stiffer 80x40 profile for almost any wheelbase/pedal set.
- Best for frequent tweaking and cable routing: SIMGASM Sport simulator with built-in pass-through routing for tidy builds.
- Flagship: SIMGASM Pro simulator for maximum rigidity and adjustability with high torque and heavy braking.
- Comfort option: SIMGASM Core Recline seat if you don’t want a fixed bucket.
- Bucket options: SIMGASM Atlas GT seat for GT-style driving, or SIMGASM Atlas Formula seat for a more laid-back formula/hypercar position.
- Adjustability: dual locking slider set for quick driver changes.
- Triples: Apex freestanding triple monitor stand for a stable screen reference, or Core integrated triple monitor stand if you prefer an integrated look.
- VESA alignment: VESA mounting bracket to make mounting cleaner across VESA sizes.
If you are unsure what fits your hardware, SIMGASM support can help you match mounts, bolt patterns and upgrade paths before you buy.
Simple ACC setup routine (do this every time)
- Pick your preset baseline.
- Set tyre pressures for the session conditions.
- Set brake ducts for temperature stability.
- Adjust TC/ABS for traction and lockup control.
- Adjust brake bias for entry balance.
- Only then: touch advanced items (ride height, aero, dampers).
Continue reading
- How to avoid force feedback clipping: a practical workflow across sims
- Brake pedal elastomer tuning: travel, stiffness and consistency for faster laps
- Fanatec ACC settings guide for CSL DD, GT DD Pro, DD1 and DD2
- Assetto Corsa Competizione graphics settings: clarity, mirrors and stable FPS
- ACC VR settings guide: OpenXR, DLSS and performance tuning
- Trail braking explained: technique, pedal setup and drills
- Stop overdriving: a beginner practice plan for faster lap times
