Using Telemetry and Video
Data-driven improvement for faster lap times
Why Use Data?
Telemetry and video transform guesswork into facts:
- See exactly where you're losing time
- Compare your lines with faster drivers
- Track improvement objectively
- Identify car setup issues
- Build consistency
Basic GPS Lap Timers
Entry-level option for lap timing and basic analysis:
Popular Options
- Garmin Catalyst: £800 - AI coaching included
- AiM Solo 2 DL: £500 - Predictive lap timing
- RaceBox Mini: £250 - Budget friendly
- Phone Apps: Harry's Lap Timer, RaceChrono
What They Provide
- Lap times and splits
- Speed traces
- Racing line maps
- Basic acceleration data
Full Data Logging Systems
Professional-level analysis with multiple sensors:
Systems
- AiM MXL2/MXG: £2000+ - Full dash replacement
- VBOX Video HD2: £2500 - Integrated video
- Motec C125: £3000+ - Professional grade
Additional Sensors
- Brake pressure transducers
- Steering angle sensors
- Suspension potentiometers
- Tyre temperature sensors
- G-force sensors
Video Setup
Camera Placement
- Primary: Behind driver showing track ahead
- Secondary: Footwell for pedal work
- External: Chase cam for line analysis
Camera Options
- GoPro Hero: Most popular, good stabilization
- Garmin VIRB: Built-in GPS data overlay
- SmartyCam: Integrated with AiM systems
Always use external power for cameras - internal batteries won't last a full day
Data Analysis Basics
Key Metrics to Study
- Speed traces: Where are you slower?
- Throttle position: Getting on power early?
- Brake pressure: Braking too early/gently?
- Racing line: Using all the track?
- Consistency: Lap time variation
Common Findings
- Not using full throttle where possible
- Coasting between brake and throttle
- Turning in too early
- Not trail braking effectively
- Inconsistent brake markers
Analysis Software
Free Options
- Circuit Tools: Basic but effective
- RaceRender: Great for video overlays
- Manufacturer software: AiM Race Studio, etc.
Professional Software
- Motec i2: Industry standard
- AiM Race Studio: Full featured
- Cosworth Toolbox: Advanced analysis
Getting Started
- Start simple - GPS lap timer or phone app
- Add a camera for visual reference
- Focus on consistency before chasing lap times
- Compare with friends' data if possible
- Consider coaching to interpret data properly
Don't get distracted by data while driving - review between sessions
Tips for Effective Use
- Establish consistent references (brake markers, turn-in points)
- Focus on one corner at a time
- Video and data together are most powerful
- Share data with experienced drivers for advice
- Don't chase tenths until you're consistent
- Weather conditions affect all data
Data Analysis Tips
- Start with GPS timing
- Add video for context
- Focus on consistency
- Compare with others
- Review between sessions