RaceChrono Pro
RaceChrono Pro
RaceChrono Pro precision lap timing for serious motorsports
Screenshots
RaceChrono Pro: Advanced Motorsport Telemetry and Data Analysis
RaceChrono Pro is a high-performance telemetry and lap timing app designed for motorsport enthusiasts, professional drivers, and engineers. It transforms a smartphone or tablet into a sophisticated data acquisition system, capable of recording GPS, video, OBD-II, and external sensor data simultaneously. The app supports over 200 vehicle models and integrates with Bluetooth sensors to provide real-time performance metrics. Unlike basic lap timers, RaceChrono Pro offers advanced analysis tools, including track map overlays, graph comparisons, and predictive lap timing. Its professional-grade features make it a portable alternative to dedicated data logging hardware.
Chapter 1: Function
RaceChrono Pro functions as a comprehensive data logger and lap timer. Its core capabilities include high-precision GPS recording at up to 20 Hz for accurate position and speed data. The app supports Bluetooth OBD-II adapters to read engine parameters like RPM, throttle position, coolant temperature, and fuel pressure. It also integrates with external GPS modules for sub-10-centimeter accuracy. Users can capture multiple video streams with real-time data overlays, including throttle maps and braking indicators. The app provides automatic track recognition for over 700 global circuits, enabling instant lap detection and split times. Advanced features include predictive lap time calculation, accelerometer-based G-force plotting, and drift angle measurement. Data can be exported in CSV, VBO, or MoTeC formats for further analysis.
Chapter 2: Value
RaceChrono Pro delivers exceptional value by replacing multiple expensive devices with a single mobile tool. Its key advantages include cost-effectiveness, offering professional-grade telemetry without the thousand-dollar hardware investment. The app provides unparalleled data integration, merging video, GPS, engine, and sensor data into unified sessions. It enables precise performance analysis through customizable dashboards, allowing users to compare up to five laps simultaneously. The automatic track recognition feature saves time and ensures accuracy by eliminating manual start/finish line setup. RaceChrono Pro also supports wireless data sharing, enabling teams to review runs instantly without cables. For serious racers, the app’s ability to log predictive lap times helps identify optimal driving lines and braking points. The wide sensor compatibility, including support for GoPro video and CAN bus interfaces, makes it adaptable for cars, motorcycles, and karts. Moreover, the app offers advanced filtering and smoothing tools to clean noisy data, ensuring reliable insights. Its cloud backup feature protects valuable session data from loss. The combination of real-time feedback and post-session analysis empowers users to improve lap times by seconds, making it an indispensable tool for competitive motorsport.
Chapter 3: Scenarios
The primary target users for RaceChrono Pro are amateur and professional racing drivers, track day enthusiasts, and motorsport engineers. Common use cases include track days at circuits like Nurburgring or Laguna Seca, where drivers use the app to log and analyze lap times for performance improvement. Club racers rely on it to compare data with competitors and refine setups at events like SCCA or NASA competitions. Professional teams utilize the app for shakedown tests, monitoring engine parameters through OBD-II and validating suspension changes via accelerometer data. Kart racers benefit from its lightweight setup, attaching a phone to the chassis for instant feedback. Motorcycle track riders use the predictive lap feature to identify corner entries and exits. Additionally, driving instructors employ the app to visually demonstrate braking zones and throttle application to students. Engineers in low-budget racing series use RaceChrono Pro as a primary data source, exporting logs for vehicle dynamics studies. Everyday enthusiasts use it for drag racing or autocross events, recording 0-60 times and skidpad performance.
Advantages
- supports simultaneous multi-GNSS and raw sensor logging
- custom track auto-generation from any GPS trace
- live telemetry overlay on video with no cloud dependency
- direct CAN bus OBD2 integration for race ECU data
- offline splits and predictive lap timing without cellular
Disadvantages
- steep learning curve for configuring custom data fields
- no native support for hot-lap crowd-sourced validation
- data export limited to CSV and no direct cloud sync
- user map editor lacks vector drawing tools for finish lines
- paid pro features essential for any advanced analysis use
Frequently Asked Questions
Q: What is RaceChrono Pro used for?
A: RaceChrono Pro is a motorsport data logging and lap timing app. It records GPS-based lap times, accelerometer data, and video overlays for track driving. It supports OBD-II and CAN bus sensors for advanced telemetry analysis. No additional equipment is required for basic use. Available on Android and iOS devices.
Q: Is RaceChrono Pro free to use?
A: RaceChrono Pro is a paid app with a one-time purchase. It includes all core features like lap timing, data logging, and video overlay. There are no in-app purchases or subscription fees. A free trial version with limited features is available for testing. No extra hardware is required for basic functionality.
Q: Does RaceChrono Pro work with OBD-II scanners?
A: Yes, RaceChrono Pro supports OBD-II scanners via Bluetooth or Wi-Fi for real-time engine data like RPM, throttle position, and coolant temperature. It also works with CAN bus adapters for professional data acquisition. Compatibility depends on your vehicle’s OBD-II protocol. Basic lap timing works without any sensors.
Q: How accurate is the GPS lap timing?
A: RaceChrono Pro uses GPS with up to 10 Hz update rate on supported devices, providing sub-meter accuracy for lap timing. For best results, use an external Bluetooth GPS receiver with high update rate. The app auto-detects start/finish lines and sectors. Accuracy can be affected by signal interference in tunnels or dense areas.
Q: Can I export data from RaceChrono Pro?
A: Yes, RaceChrono Pro supports exporting data in CSV, VBO, and XGPS formats for analysis in third-party software like Circuit Tools or RaceRender. Video with data overlays can be exported in MP4 format. Data is stored locally on your device. Cloud sync is not available. Export via USB or file sharing apps.
Technical Information
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