Electronic Anti-lag Valves by Turbosmart
In 2018, Turbosmart released their Anti-Lag Valve, the ALV40 to much acclaim. For 2021 they’ve expanded on this, introducing the 2019 SEMA award-winning technology of the eWG electronic gate & combining the two to make the world’s most controllable fresh-air anti-lag valve, the eALV40.
The GENV architecture both the electronic external wastegate range and the ALV40 are built on is truly modular, allowing interchangeable actuator housings between all body sizes & full 360-degree rotatable housings for limitless mounting, hose & wire routing.
Traditionally, pneumatic operated anti-lag valves can often require external canisters, check valves and multiple solenoids for operation. These systems are proven & an extremely effective anti-lag strategy, however, the eALV40 from Turbosmart changes all that with full electronic actuation & control from your aftermarket ECU.
The control strategy is shared with the GenV eWG range, requiring an H-Bridge control output most commonly used for electronic throttle bodies. The eALV40 includes both a valve position sensor & onboard temperature sensor for data logging and safety strategies.
Further expanding the range, Turbosmart has introduced a 6 port outlet weld flange to help facilitate fitment on 6 & 12 cylinder engines. The full range now includes both pneumatic & electronically actuated, specially designed anti-lag valves as well as outlet weld-on fittings including double, three, four, five & now six-port outlets.
Frequently Asked Questions
The concept of anti-lag is to reduce or eliminate turbocharger lag. Turbocharger lag is generally considered the time it takes for your engine to produce boost. Note, we say time – Not RPM. Anti-Lag is in an improvement in response, it will not make a large turbo create boost earlier in the RPM range on a dyno (as an example), but a well setup system will ensure you maintain boost between gear changes and dynamic (On / Off) throttle situations as seen in motorsports such as drifting, rallying and such.
There are a couple of Anti-Lag strategies based on your engine, vehicle and ECU. The Turbosmart ‘Fresh Air’ ALV40 is the basis of a full bypass system where the valve actually opens when the throttle is closed & allows compressed air from the turbocharger to be directed into the exhaust manifold prior to the turbocharger – effectively ‘around’ the engine. This compressed-air requires an ECU strategy of additional fuel & adjusted ignition timing to effectively ignite and control a burn, in the manifold right before the turbo. This burn creates energy, which can maintain turbine speed, also known as boost.
Not at all, no. There are a couple of key differences and yes, you require more hardware to do it. Throttle Kick style Anti-Lag has been a feature on most aftermarket ECU’s for some time. Fresh Air Anti-Lag however has several distinct benefits. The first is significantly lower EGT’s during Anti-Lag operation and that means greater reliability of your turbocharger, manifold and accessories. The other benefit is around vacuum boosted brake systems. Vehicles fitted with these types of braking systems (most cars) will lose braking assistance when kick-type Anti-Lag is activated as the engine does not run in a vacuum. A Fresh Air Anti-Lag system however does have vacuum and maintains all vacuum bases & boosted accessories when in operation.
Here is a handy self-help guide to helping you with your Turbosmart install and answers to some of the most frequently asked questions we get here. Turbosmart recommends that you get your products fitted and tuned by a qualified technician. If you choose to install the product yourself, ensure you have all the necessary tools and technical knowledge to perform this task.
Thank you for picking up the latest Turbosmart catalogue. As we look back on 25 fantastic years of innovation and growth, we continue to look towards the future as we release some revolutionary new products that will cement our reputation as innovators and market leaders.
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Turbosmart Anti-lag Valve Explained
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GenV Electronic CompGate40 Anti-Lag Valve
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Electronic Anti-lag Valve
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