What Does Anti-Lag System Mean?
2 Answers
Anti-lag system refers to the anti-lag ignition system. Here is more information about the anti-lag system: 1. The anti-lag system is an electronic device used in rally racing or drag racing, with the basic function of reducing turbo lag. 2. The working principle of the anti-lag system is to forcibly inject fuel into the cylinder without igniting it. After compression, the fuel is ignited when it's time to exhaust, allowing the exhaust gases to be expelled and maintaining the turbocharger's speed to reduce turbo lag. 3. The anti-lag system stops the ignition action when lifting off the throttle to shift gears, intentionally allowing the fuel-air mixture to enter the exhaust manifold after the exhaust valve opens. The manifold temperature is extremely high, causing the mixture to explode upon contact. The powerful explosion pressure pushes the turbine's exhaust blades, causing the compressor side blades in the turbocharger to rotate at high speed and continue boosting, ensuring boost pressure even when the vehicle is at low speed or shifting gears. 4. The main purpose of the anti-lag system is to maintain the normal operation of the turbocharger when the engine does not require power output but needs a large amount of air intake, especially when turbocharged race cars reduce power for cornering, ensuring a quick response when power output is needed.
Anti-lag system is an engine tuning technique designed to enhance the performance response of turbocharged vehicles. I understand it works by deliberately retarding ignition timing through the electronic control unit, allowing the air-fuel mixture to ignite during the exhaust stroke. This generates high-temperature, high-pressure gases that rapidly spin the turbocharger, effectively eliminating turbo lag. When the driver presses the accelerator, the car can accelerate immediately, delivering smoother and more powerful performance—especially common in racing or modified vehicles. However, prolonged use significantly increases exhaust system temperatures, accelerating wear on components like the turbocharger and oxygen sensors. Therefore, post-modification requires reinforced cooling system maintenance to prevent engine overheating. Originating from high-performance tuning, this technology is now widely used to enhance driving pleasure, but requires careful consideration of both performance and reliability trade-offs.
