Motorsports & Racing
Motorsports calculators for lap time prediction, fuel strategy, tire degradation, drag racing ET, gear ratios, and brake temperature.
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Lap Time Predictor
Project your optimal lap time based on sector-by-sector improvements and current tire condition. Useful for analyzing practice sessions and setting realistic race targets.
Fuel Strategy Calculator
Plan pit stop timing and fuel load for endurance races. Calculate the optimal number of stints, fuel per stint, and total pit time to minimize race duration.
Tire Degradation Calculator
Model lap time degradation over a tire stint. Compare compound choices and find the optimal stint length that balances tire wear against pit stop time loss.
Drag Racing ET Calculator
Estimate quarter-mile elapsed time and trap speed from vehicle weight and horsepower. Accounts for altitude and temperature effects on engine performance.
Go-Kart Gear Ratio Calculator
Find the optimal sprocket combination for your go-kart. Calculate gear ratio, top speed at max RPM, and get recommended sprocket teeth for a target speed.
Autocross PAX Calculator
Calculate PAX-adjusted autocross times for cross-class comparison. Apply cone penalties and class-specific PAX factors to compare performance across different vehicle classes.
Rally Stage Speed Calculator
Calculate the required average speed to meet a rally time control. Accounts for surface type and provides a difficulty rating for stage planning.
Motorcycle Lean Angle Calculator
Calculate the required lean angle for a given corner radius and speed. Determine lateral G-forces, maximum safe speed, and your margin to the grip limit.
Race Weight Penalty Calculator
Calculate the lap time penalty from additional weight on a race car. Understand how ballast, fuel load, or driver weight affects performance across different track types.
Brake Pad Temperature Calculator
Estimate brake temperature rise from a single braking event. Calculate kinetic energy dissipation, peak temperature, and brake fade risk for track driving.