iRacing rewards consistency. That means your force feedback should be predictable, not dramatic. With Simagic wheelbases, the biggest win is getting a “clean baseline” that avoids clipping and stays comfortable for long stints.
This guide gives you a practical setup workflow for iRacing with Simagic, plus a few tuning branches for GT, prototypes and formula cars.
Step 0: make sure the cockpit is not the weak link
Before you touch software, check this:
- The wheelbase is mounted rigidly (no plate flex, no loose bolts).
- Your seat and pedals don’t move relative to each other under braking.
- Cables are routed so nothing tugs when you steer.
If you’re building from scratch, SIMGASM Club cockpit (C80) is a great foundation for Simagic in this torque class, and SIMGASM Sport cockpit (C120) / SIMGASM Pro cockpit (C160) are ideal if you’re running higher torque or planning upgrades.
Step 1: set wheel rotation correctly
- Set a sensible max rotation in SimPro Manager (900° is a common default).
- In iRacing, calibrate the wheel and pedals.
- Let iRacing apply soft lock per car where available.
Need a quick cheat sheet for different car types? See the steering angle guide.
Step 2: set Wheel Force correctly so Auto FFB works
In iRacing, the Wheel Force value should match your base’s maximum torque class (for example: 10Nm, 15Nm, 23Nm). Then:
- Go on track.
- Use iRacing’s Auto force feedback strength (usually in the black box).
- Drive a few laps and check if big kerbs or crashes cause constant clipping.
This workflow is explained in more detail in the clipping guide.
Step 3: build a stable SimPro Manager baseline
Start with a “minimal filter” philosophy:
- Keep smoothing low unless the wheel feels grainy on straights.
- Use small damper/friction only to solve oscillation or an overly light center.
- Don’t chase feel with huge filters if the real issue is cockpit flex.
Branch A: GT cars (GT3, GT4, GTP)
- Prioritize weight build-up and steady mid-corner feel.
- If kerbs feel too violent, reduce “detail” first, then add a touch of slew control.
- If the wheel oscillates on straights, reduce rotation speed slightly and add a small damper.
Branch B: prototypes and high downforce
- These cars can create big spikes. Keep your tuning calm.
- Use headroom instead of raw gain: it’s okay to run lower strength while keeping detail.
- Rig stiffness matters a lot. If the wheel deck twists, the car will feel nervous.
Branch C: formula cars
- Most formula drivers prefer faster response and less damping.
- Consider a slightly lower max rotation and let the car’s steering ratio do the work.
- If the wheel feels too “twitchy”, don’t over-smooth. Fix seating distance and rotation speed first.
Ergonomics tip that improves pace immediately
If you’re reaching for the wheel, you’ll over-correct and tire faster. A cockpit that adjusts easily makes you faster because you can set a repeatable posture.
- SIMGASM Core Recline seat for comfort during long iRacing sessions.
- SIMGASM Atlas GT seat if you want a locked-in braking posture.
- Entry: SIMGASM Hobby cockpit (C40) if you want the lowest price while still getting a real aluminium rig.
- Most popular: SIMGASM Club cockpit (C80) for “buy once, upgrade later” stiffness.
- High torque / motion: SIMGASM Sport cockpit (C120) or SIMGASM Pro cockpit (C160) depending on torque and how hard you brake.
- Comfort seat option: SIMGASM Core Recline seat if you don’t want a fixed bucket seat.
- Bucket seat options: SIMGASM Atlas GT seat for GT driving position, or SIMGASM Atlas Formula seat for a more laid-back formula/hypercar position.
- Mounting: seat bracket set makes seat install and positioning easier on a profile rig.
- Monitors: integrated triple monitor stand if you want an integrated, space-saving setup, or freestanding triple monitor stand if you want the screen isolated from vibrations and future motion upgrades.
- VESA hardware: VESA mounting bracket set for clean, rigid mounting (especially helpful for triples).
- Wheelbase mounting: wheel mount base set + front wheel mount when you want a clean, rigid wheel deck.
- Alternative mounting: bottom wheel mount and large side plates / small side plates for different base/mounting styles.
- Shifter/handbrake: shifter and handbrake mount + universal peripheral deck for rally/drift layouts.
- Ergonomics add-ons: keyboard swivel mount, heelrest and heel plate for a more “finished” cockpit feel.
Continue reading
- SimPro Manager settings explained: build a Simagic profile that stays detailed
- Simagic ACC settings: keep detail without harsh kerbs or clipping
- Simagic Alpha series mounting guide: bolt patterns, bottom mounts and angle brackets
- Simagic wheelbase settings guide for iRacing and ACC
- Sim racing cable routing guide: service loops and clean builds
