Drive faster with numbers you can copy
RaceBoost turns racing physics into brake points, pedal curves and speeds for your car, so you know exactly what to do with your pedals in iRacing. Free, no account.
Tools
Braking
Brake Planner
Brake point, pedal pressure curve, turn-in and ABS points from your car, entry speed and corner angle.
Muscle memory · coming soonPedal Trainer
Follow a target pedal curve with your own pedals and get scored, like a rhythm game for braking. Coming to the browser and the desktop app.
Braking guides by class
35 cars across 4 classes, with grip estimates and example braking zones. 74 road circuits listed.
- GT4Production-based race cars with ABS, modest downforce and road-car weight. The usual next step after the MX-5 and the class most iRacing road racers spend their first seasons in.
- GT3The main sports-car class: more power, more downforce and stronger brakes than GT4, with adjustable ABS and traction control.
- MX-5 and entry carsLight, low-power cars with no real downforce. Grip barely changes with speed, so the braking zone is about weight transfer and rotation rather than aero.
- Formula and open wheelSingle-seaters from Formula Vee to Formula 1. No ABS, so holding too much pedal locks a wheel. The faster cars gain a lot of grip with speed, so the first metres of the zone take far more pedal than the end.
How it works
- Show the numbers. Every tool shows its result and the reasoning behind it, not just a verdict.
- Mark every guess. Grip values start as estimates and are labelled that way until they are measured from iRacing telemetry.
- Make it copyable. Results are brake points in metres and pedal pressure in percent, things you can do with real pedals on track.
Coming next: the RaceBoost desktop app
A pedal trainer that scores how well you follow a braking curve, and an in-game overlay that shows the brake point and target pedal while you drive.