How Throttle Graph Telemetry Can Improve Your Sim Racing Lap Times

In sim racing, the throttle pedal is not just a switch – it's a precision instrument. Knowing when and how to apply power is crucial to optimizing traction, car balance, and ultimately, lap times. One of the best ways to refine this skill is by analyzing throttle graph telemetry. This data gives you a clear picture of how you’re using the throttle throughout a lap and helps identify areas where smoother, more controlled inputs can lead to significant performance gains.

A throttle graph plots your throttle input over time or distance, typically from 0% (completely off) to 100% (fully open). When reviewed alongside speed, brake, and gear data, it becomes a powerful tool for understanding your acceleration behavior and throttle modulation.

The shape of the throttle curve tells you a lot about your driving style, confidence level, and grip usage.

A sharp, straight line from 0% to 100% throttle generally indicates confidence and traction – ideal when exiting corners with high grip or on straights. However, if you see this pattern in low-grip corners or in cars that require throttle modulation (like GT or open-wheel cars), it could be a sign of over-aggression, leading to wheelspin, understeer, too much TC (traction control) that slows down the car or unstable exits. In these cases, reviewing your throttle trace can help you apply power more gradually, preserving traction.

A more progressive increase in throttle is often seen in technical or low-speed corners, where balance and control are more critical. If the curve looks segmented – where throttle increases in stages – it may indicate hesitation or a lack of confidence in grip. This can also suggest that you’re correcting for poor corner entry or mid-corner balance. With telemetry, you can pinpoint these moments and work on smoother transitions to full throttle, which helps reduce lap time and tire wear.

Throttle telemetry is also excellent for identifying lift points – moments where you briefly come off the throttle mid-corner or in high-speed turns. These subtle lifts can help with car rotation or stability, but if overused, they may signal unnecessary caution or poor line choice. By analyzing and comparing these points with faster laps, you can learn to carry more speed and reduce hesitation.

A jagged or erratic throttle graph typically indicates overcorrection or unstable driving, often resulting from improper setup or poor throttle control. Using telemetry, you can smooth out these inputs, leading to better traction and more predictable handling.

Analyzing the throttle graph is also useful to ensure that your pedal set delivers 100% throttle when required. If the graph is not linear on a straight, you may need to recalibrate your pedals.

Mastering the throttle is one of the most powerful ways to improve your sim racing performance. By analyzing throttle graph telemetry, you gain a clear view of your acceleration habits and learn to apply power with precision. It’s not just about going faster – it’s about going smarter.