ACC Simucube Settings: TrueDrive, Recon Filter & the 444Hz Call

I’m a sim racer and amateur racer with a passion for Motorsport, good racecraft and the technical and setup aspect of sim racing.

Simucube and ACC is the FFB purist’s setup. No artificial cues, no canned effects, no comfortable smoothing layer in the wheelbase software taking the edge off rough kerbs. Just raw steering rack telemetry into a 25 or 32Nm motor doing exactly what the physics tells it to do. It’s properly demanding – you can tell the moment a GT3 driver tries it for the first time because they invariably break into a small smile and then look slightly annoyed they have to keep racing the way they’ve been racing because no other DD makes them feel like this. The setup that gets you there is short. Strength 100%. Reconstruction Filter at 1 or 3 (1 if you’re hardcore, 3 if you want a touch of polish). FFB Frequency in ACC at 444Hz – higher than the 400Hz default – because the SC2’s USB controller handles it cleanly and the extra signal density actually shows.

TrueDrive setup for ACC

TrueDrive Overall Strength stays at 100 because you’re going to dial torque via ACC’s in-game Gain. The 100% in software isn’t “drive harder” – it’s “preserve the dynamic range so when ACC dials Gain back, the floor of the signal stays high enough to feel”. This is the Simucube purist approach across every sim.

Reconstruction Filter scales lightly with motor size. The SC2 Sport at 17Nm benefits from Filter at 1-3 (1 if you can handle the raw signal, 3 if rough kerbs annoy you). The SC2 Pro at 25Nm settles around 3 for most users. The SC2 Ultimate at 32Nm can take 3-4 – the extra torque amplifies micro-events, and Filter 3-4 catches them before they turn into wrist abuse.

Setting	SC2 Sport (17Nm)	SC2 Pro (25Nm)	SC2 Ultimate (32Nm)
Operating Range	1080°	1080°	1080°
Overall Strength	100	100	100
Recon Filter	1-3	3	3-4
Damping	15-20	10-15	10
Friction	10-15	5-10	5
Inertia	5	5	5

In-game ACC settings

In-game Gain is where the SC2 humbles the high-torque-base reflex. The Ultimate at 32Nm will clip and oscillate viciously at anything over 30% in-game Gain. The Pro at 25Nm wants 35-40%. The Sport at 17Nm gets 45-50%. These look low compared to other DDs – that’s correct. The motor torque headroom is for catching the spike events (Eau Rouge compression, Pouhon load) rather than for constant cornering force.

Setting	SC2 Sport	SC2 Pro	SC2 Ultimate
Gain	45-50%	35-40%	25-30%
Min Force	0%	0%	0%
Dynamic Damping	60%	60%	50%
Road Effects	100%	100%	100%
FFB Frequency	444Hz	444Hz	444Hz

FFB Frequency at 444Hz is the Simucube-specific call. ACC’s default is 400Hz, which is the safe choice for older USB controllers. The SC2 chipset handles 444Hz cleanly, and the extra signal density actually delivers. You feel rumble strips more precisely, oscillation transitions are smoother, the moment a tyre breaks loose has a slightly sharper edge to it. Genuinely worth setting up.

Reconstruction Filter 1 vs 3 in ACC

Same Simucube purist debate that appears across every sim, with a slightly different ACC-specific texture worth knowing.

Recon Filter 1 in ACC means ACC’s steering-rack telemetry comes through unsmoothed. Micro-slides, surface texture, the subtle weight transfer of the chassis settling onto its outside front tyre – all of it lands with full immediacy. ACC’s signal is clean enough that Filter 1 is genuinely usable on the SC2 Pro and Ultimate, unlike, say, Dirt Rally 2 where you’d want Filter 4-5 just to smooth the EGO engine’s slightly grainy output.

Recon Filter 3 trades a small amount of that immediacy for a smoother handling of rough surfaces. ACC’s Spa run from Eau Rouge through Raidillon at racing speed has genuine pavement texture variation; Filter 3 mutes the harshest of that without softening the corner-by-corner signal you actually steer with.

The split for ACC specifically: Filter 1 if you’re racing the Suzuka 250 and want every micro-event, Filter 3 if you’re running the SPA 24 and your forearms need to last 12 hours. Both are legitimate. Try 1 first. If oscillation creeps in or kerbs feel harsh after an hour, bump to 3.

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Common Simucube + ACC mistakes

In-game Gain at 100% on the Ultimate. Severe clipping. 25-30% is the upper end – the motor headroom is for spike catches, not constant force.
Reconstruction Filter at 0. ACC’s signal is clean but not that clean. Filter 1 is the floor; sub-zero gets jagged edges on rough kerbs.
FFB Frequency stuck at 333Hz or 400Hz. Most people miss the 444Hz call. The SC2 handles it cleanly. Worth setting.
Min Force above 0. Robotic centre rattle. 0% always.
Operating Range below 1080°. Every ACC GT3 has its own real-world steering lock. Set TrueDrive to 1080, let ACC soft-lock per car.
Wheel rim weight mismatch. Inertia at 5 assumes a typical 320mm GT3 rim. Heavier rims need slightly less, lighter rims slightly more. Notice and adjust.

Simucube on ACC is, properly set up, the closest thing to a real GT3 seat you can put in your living room without going full motion. The multi-brand ACC matrix is ACC wheel settings, the iRacing Simucube companion is iRacing Simucube settings, and the wider Simucube context is in our direct drive wheel buyer’s guide.

Sources: Granite Devices Simucube community ACC threads, TrueDrive Paddock ACC profiles (Beano, Daniel Morad), r/ACCompetizione SC2 setup discussions.