Saturday 8st May 2021

No more turbo lag with an anti-lag system!

Reading time approx. 5 Minutes

video moving flamethrower ni No more turbo lag with an anti lag system!

Have you heard of the anti-lag system before? It is also called "ALS" or the bang-bang system. This closes the turbo lag of the engine. For example, if you approach a curve and have to brake so as not to fall victim to the centrifugal force, the turbocharger loses its speed and has almost no power in a certain speed range. When several curves follow one another closely, you drive for a long time without a turbo boost. When accelerating, the turbocharger needs a few milliseconds to get up to speed so that it can again develop its performance-enhancing effect. The turbo also loses its pressure during the shifting process.

the anti-lag system

Anti Lag System e1583652601695 No more turbo lag with an Anti Lag System!

To avoid this brief loss of power, i.e. the turbo lag, the turbocharger is kept at a high speed with a trick. For this purpose, the turbo air bypasses practically the entire engine with the help of a valve. The air coming from the turbocharger is branched off in front of the closed throttle valve and is fed back directly in front of the engine valves. The actual combustion chamber is bypassed, which is why the term automatic air recirculation system is sometimes used. Back on the way to the turbocharger, the air is deliberately enriched with petrol. If necessary, you can adjust the engine so that the mixture becomes richer. The gas-air mixture ignites on the hot manifold and explodes. Because of these explosion noises, the name Bang-Bang came into being, the crackling in front of the bends, which is known from rallying. The high pressure generated by these explosions brings the turbo wheel up to high speed, even though no further power is required at this moment.

Retrofit the anti-lag system

Anti Lag System 2 No more turbo lag with an anti lag system!

In racing, it actually makes sense if milliseconds decide about victory and it does not matter how long the engine lasts. Due to the constant explosions in front of the turbo wheel, its lifespan is rapidly declining. And of course we also have the valves, in which direction the pressure of the ignited gas also unfolds. The valves burn faster than in normal operation. The manifold is also exposed to a very high load and will tear sooner or later if you use the system constantly. The speed of the engine and turbocharger do not match. The temperature distribution changes, the load on the engine goes far beyond its limit. Some vehicles have an electrically operated turbocharger. No valve needs to be installed on these models. The turbo lag can be eliminated by intervening in the engine control. But here, too, the concerns about material stress apply to the relatively small benefit.

Conclusion on the anti-lag system on the road

If you want to drive your engine longer, you should stay away. Even if the engine sounds tempting like a rally car, the increase in performance / effectiveness through an anti-lag system is minimal and not recommended for private users. The ALS is suitable to let the boost pressure drop only very slightly during the switching process. The ignition angle is pulled very late and fuel continues to be injected even with the throttle valve closed. The effect is cool, because with a late ignition angle, the combustion moves more and more towards the opening time of the exhaust valve and at some point the flame front of the combustion can even be seen on the tailpipe of the exhaust, but that is not good in the long run.

We hope that you the info report on the topic / term Anti-lag system (further names / keywords: ALS, Bang-Bang-System, anti-lag valve, automatic air recirculation system) from the field of autotuning. Our goal is that the largest German-language tuning dictionary (Tuning Wikipedia) and to explain tuning terms from A to Z easily and understandably. Almost every day we expand this lexicon and how far we are, you can HERE see. Soon the next one will be Tuning scene concept be illuminated by us. By the way, you will be informed about new topics if you have ours Feed subscribe to.

Anti Lag System 4 No more turbo lag with an anti lag system!

Below are a few examples from our tuning lexicon:

But of course tuningblog has countless other articles on the subject of cars & car tuning in stock. Do you want to see them all? Just click HERE and look around. We would also like to provide you with news aside from the tuning. In our category Tips, products, information & Co we pick up contributions from car or accessory manufacturers. And also our category Test sites, laws, offenses, information has almost daily new information for you. Here are a few topics from our tuning wiki:

Prevent engine damage with crankshaft protection!

Crankshaft lock central screw lock N55 S55 310x165 No more turbo lag with an anti lag system!

More power - the throttle valve spacer kit!

Throttle body spacer Trottle Body 2 e1582800089452 310x165 No more turbo lag with an anti lag system!

More style at the rear - the rear light cover on the car!

Rear light cover R% C3% B rear light cover 3 3x310 No more turbo lag with an anti lag system!

More comfort when driving - the steering damper!

Steering damper Steering damper Vibration 3x4 No more turbo lag with an anti lag system!

Against "dooring accidents" - the exit warning function!

Dooring accident exit warning holl% C3% A4ndischer handle 310x165 No more turbo lag with an anti lag system!

Soundinferno - the CutOut system for the exhaust!

CutOut System Tuning Exhaust System e1583386774728 310x165 No more turbo lag with an anti lag system!

"" - we keep you up to date on the subject of car tuning and car styling with our tuning magazine and we present you the latest tuned vehicles from all over the world every day. It's best to subscribe to ours Feed and will automatically be informed as soon as there is something new about this post, and of course also to all other contributions.

Smava tuning blog credit 12 e1618563898711 No more turbo lag with an anti lag system!

You might also be interested in…         by

Leave a Comment

Your e-mail address will not be published.