Optimize your setups & racing strategies on Le Mans Ultimate (LMU) and rFactor 2 (RF2)
AI Setup Engineer, telemetry, fuel strategy — all the tools to gain lap time every session.
Key Features
AI Setup Engineer
AI setup advice for Le Mans Ultimate (LMU) and rFactor 2 (RF2)Telemetry
Analyze your performance after each session Le Mans Ultimate · rFactor 2Fuel Calculator
Optimized fuel strategy and pit stopsSimHub Plugin
Telemetry sync & AI Push to Talk Le Mans Ultimate · rFactor 2Grand Prix
Schedules & alerts for F1, MotoGP, WEC...RaceControl
RF2 and LMU race calendarEvents
Community-organized racesRF2 Server
Launch a rFactor 2 server in clicks800+
Registered drivers
10,000+
Sessions analyzed
8
Tools available
Discover the tools
Fuel calculator, AI engineer, telemetry, Grand Prix calendar and more
Join the community
Chat with other Simracing enthusiasts and share your strategies
Partners
News
Changelog📅 Update of April 8, 2026
Improvements made:
- Changelog page: a new dedicated page now lists all updates to Strat Calculator, including minor adjustments, with quick access from the button on the homepage and the footer.
- AI Engineer: its behavior has been adjusted so it can suggest tire pressure recommendations only when the request is explicitly made.
📅 Update on March 4, 2026
The improvements made in the AI Engineer:
- Interactive Cornering Assistant: Discover a real-time top-down animation to accurately visualize the car’s behavior through a corner. Ideal for understanding at a glance what really happens at turn-in.
- 4 educational modes: Ideal line, understeer, oversteer, and curb instability: each mode displays a dedicated trajectory with an animated car to instantly compare the differences.
- Synchronized dynamic steering wheel: Steering angle, counter-steer snaps, and oscillations are reproduced live to clearly illustrate the driver’s reactions in each situation.
- Instant visual understanding: Designed for beginner simracers, this tool helps quickly identify cornering mistakes and build the right reflexes more easily.
📅 Update of February 18, 2026
Improvements made:
- SimHub Plugin – Telemetry anti-spam: The minimum delay between two telemetry submissions had been removed, allowing the user to send without restriction. The 10-second delay has been reinstated to prevent spam submissions.
- AI Engineer – Microphone usage: Voice input is now cumulative: the microphone deactivates between speech inputs, but when the user speaks again, the new text is appended without erasing what was previously said.