What is the method for performing a launch control start in an automatic transmission car?
3 Answers
Here are the step-by-step methods for performing a launch control start in an automatic transmission car: 1. A launch control start puts much higher stress on the engine and transmission compared to normal driving. Many manufacturers impose limits on the number of launch control starts allowed. If engine or transmission damage occurs due to exceeding the specified number of launches, the manufacturer may void the warranty. Therefore, it's essential to warm up the car before attempting a launch control start. 2. Turn off the ESP and switch the transmission to manual mode. This locks the transmission in first gear, utilizing the highest gear ratio to maximize torque output from the engine, thereby achieving the most powerful launch control start. 3. Press the brake pedal fully, then press the accelerator pedal fully. Use the cruise control to adjust the engine speed - up to increase and down to decrease - aiming to control the maximum engine speed when the accelerator is fully depressed. The maximum torque speed for gasoline engines is not at the highest RPM; this varies depending on the specific vehicle model. 4. Release the brake immediately once the engine reaches the preset maximum speed, and the car will surge forward.
Back when I was practicing launch control on the track, I learned that it mainly relies on quickly releasing the brake to achieve instant acceleration. The whole process involves bringing the car to a complete stop, ensuring the gear is in neutral or P, then firmly pressing the brake pedal while simultaneously pressing the accelerator pedal to a moderate RPM range, around 3,000 RPM—just remember not to exceed the engine's redline. Next, while keeping the throttle steady, quickly release the brake, and the car will shoot forward like a launch. This method puts a lot of wear on the transmission—I once saw a friend's car burn out its clutch discs due to improper execution, resulting in expensive repairs. Safety first: it's best to only attempt this in closed environments like tracks or empty parking lots to avoid losing control. Beginners should watch professional driver videos to simulate the technique before trying it themselves.
As someone who has been working in car repair for many years, I've encountered numerous cases of damage caused by incorrect launch control. The correct procedure is to start the engine and let it warm up for a few seconds, then shift the automatic transmission to the appropriate position, usually P gear being optimal. Press the brake pedal firmly with your left foot, while gently pressing the accelerator with your right foot to raise the engine speed to a stable range, typically between 2500 and 4000 RPM, without exceeding the maximum limit. Then quickly release the brake with your left foot while maintaining steady pressure on the accelerator with your right foot, allowing the power to be transmitted instantly to avoid wheel spin. The key is controlling the throttle input - excessive force can damage the transmission system, potentially causing deformation of components like the torque converter. Doing this frequently accelerates wear, so it's recommended to allow longer intervals between attempts and only perform this maneuver when tire wear is minimal.
