iRacing
Connection Method
Section titled “Connection Method”Shared Memory — DR Sim Manager reads telemetry directly from iRacing’s shared memory interface at 360 Hz. No setup or configuration is needed.
Setup Steps
Section titled “Setup Steps”- Install and launch iRacing as usual.
- In DR Sim Manager, select iRacing from the Source list.
- Click Start Motion.
- Join a session and enter the track — telemetry begins automatically when your car is on track.
That’s it. No plugins, no configuration files, no ports to set up.
Available Telemetry
Section titled “Available Telemetry”iRacing provides one of the most comprehensive and high-quality telemetry feeds of any sim:
- Orientation: Pitch, Roll, Yaw
- Acceleration: Full 3-axis at 360 Hz (lateral, longitudinal, vertical) — uses iRacing’s high-frequency sub-sampled data for ultra-smooth motion
- Velocity: Full 3-axis local velocity at 360 Hz
- Angular Velocity: Pitch rate, Roll rate, Yaw rate at 360 Hz
- Speed: Vehicle speed
- RPM: Engine RPM
- Gear: Current gear
- Suspension: 4-wheel shock deflection and velocity (FL, FR, RL, RR)
- Vehicle Name: Detected automatically from the session
Telemetry Quality: ★★★★★
Section titled “Telemetry Quality: ★★★★★”iRacing’s telemetry is the gold standard for sim racing motion platforms. The 360 Hz high-frequency data provides six sub-samples per physics frame, resulting in extremely smooth and responsive motion with minimal filtering needed.
Recommended Starting Settings
Section titled “Recommended Starting Settings”Because iRacing’s telemetry is so clean and high-frequency, you can typically run with less filtering:
- Primary Cue Gain: Start at 70–100%
- Smoothing: Low values work well (the 360 Hz data is already very smooth)
- Washout: Medium — adjust to taste based on your platform’s travel
Known Quirks
Section titled “Known Quirks”- Telemetry only active on track: Data is only sent while your car is on the track (the
IsOnTrackflag must be true). You will not receive motion data in menus, replay mode, or while spectating. - High-frequency data: iRacing sends acceleration, velocity, and angular velocity at 360 Hz (6 sub-samples per 60 Hz physics frame). DR Sim Manager automatically indexes into the correct sub-sample for the smoothest possible motion.
- RPM threshold: Engine RPM below 400 is reported as 0 to avoid noise when the engine is off.
- Gear numbering: Reverse is reported as gear 0 in iRacing; DR Sim Manager adjusts this by adding 1 (so Reverse = 0, Neutral = 1, First = 2, etc.).
Troubleshooting
Section titled “Troubleshooting”No telemetry data appearing
Section titled “No telemetry data appearing”- Make sure iRacing is running and you are on track in a session (practice, race, etc.). Sitting in menus or watching replays does not produce telemetry.
- Verify that no other application is exclusively locking iRacing’s shared memory. Close other motion/telemetry apps and try again.
- Restart iRacing and DR Sim Manager.
Motion feels jittery
Section titled “Motion feels jittery”- iRacing’s high-frequency data is normally very smooth. Jitter usually indicates your motion platform’s output is configured at a very high gain. Try reducing the Primary Cue gain.
Vehicle name shows “Unknown”
Section titled “Vehicle name shows “Unknown””- This can happen briefly when first connecting. It resolves once iRacing reports driver information. If it persists, rejoin the session.
DR Sim Manager shows “connected” but no motion
Section titled “DR Sim Manager shows “connected” but no motion”- Confirm you are driving (not spectating). The telemetry feed pauses when you are not actively controlling the car.