Steering Angle Sensor Installation & Analysis Guide

AiM Steering Angle Sensor Installation & Analysis Guide

This guide explains how to install, configure, and analyse a Steering Angle Sensor for MyChron 5 and MyChron 6. Steering data is essential for understanding kart balance, driver smoothness, and chassis setup. Designed for kart racers in New Zealand and Australia.

1. What the steering angle sensor measures

The steering angle sensor measures how much the steering wheel is turned, showing:

  • Turn‑in timing
  • Driver smoothness
  • Mid‑corner stability
  • Exit release technique
  • Kart balance (understeer vs oversteer)

2. Sensor types

AiM steering sensors come in two styles:

  • Rotary potentiometer (most common)
  • Linear potentiometer (rare in karting)

The rotary sensor is ideal for kart steering columns.

3. Installation requirements

The sensor must rotate smoothly with the steering column without binding or over‑rotation.

Tools needed

  • Allen keys
  • Small spanners
  • Mounting bracket
  • Cable ties

4. Installation steps

  1. Mount the rotary sensor to the chassis using a bracket
  2. Attach the sensor arm to the steering column
  3. Ensure full movement from lock‑to‑lock
  4. Check that the sensor does not bind at any angle
  5. Route the cable along the chassis rails
  6. Connect to an analog channel on the MyChron

Important notes

  • Leave slack in the cable near the steering column
  • Use rubber mounts to reduce vibration
  • Ensure the sensor cannot over‑rotate

5. Configuring the sensor in RaceStudio 3

Open RaceStudio 3 → Device Configuration → Channels.

Calibration steps

  1. Turn steering fully left → press “Set Min”
  2. Turn steering fully right → press “Set Max”
  3. Verify smooth movement across full range

Recommended sampling rates

  • MyChron 6: 100–200 Hz
  • MyChron 5: 20–50 Hz

6. What good steering data looks like

  • Smooth turn‑in
  • Consistent mid‑corner angle
  • Clean release on exit
  • Repeatable patterns lap‑to‑lap

7. What bad steering data looks like

  • Jagged trace: oversteer or driver corrections
  • Large steering angle: understeer
  • Oscillation: unstable kart
  • Sudden drops: sliding or loss of grip

8. Using steering data for driver coaching

Steering angle is one of the best indicators of driver smoothness and confidence.

Key coaching points

  • Smoother turn‑in
  • Less steering input for same corner
  • Earlier and cleaner steering release
  • Consistency across laps

9. Using steering data for kart setup

Steering angle reveals how the kart behaves dynamically.

Understeer signs

  • Large steering angle
  • Slow steering response
  • Low lateral G

Oversteer signs

  • Small steering angle but sliding
  • Jagged steering trace
  • Sudden G‑force drops

10. Troubleshooting

Symptom Likely Cause Fix
No reading Wrong port or loose cable Check wiring
Erratic values Binding linkage Re‑align sensor
Incorrect range Calibration incorrect Recalibrate in RaceStudio
Sensor damage Over‑rotation Adjust mounting position

Related guides

← Back to AiM MyChron Knowledge Hub