What's A Two-Step Rev Limiter, And How Does It Help In Drag Racing? Car Tuning 2003

What's a Two-Step Rev Limiter, And How Does it Help in Drag Racing?

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If you've watched any form about draw racing where turbochargers are involved, you've heard talk about two different types about motor equipment: two-step rev limiters, also anti-lag. Both are guilty appropriate to some massive tire flames erupting from a car that's revving at the starting line. But what's the difference between the two? How perform they work? And what perform they perform to aid your racing propel also draw undress ET?

As always, Jason Fenske about YouTube's Engineering Explained is on this spot to demystify the technology that helps racers win. With his dependable whiteboard illustrations, Fenske helps us understand the difference between a two-step rev limiter, anti-lag, also the propel control systems that some manufacturers at the moment include from the factory supported by their high-performance cars.

Basically, it the whole amount boils down to ignition control. An aftermarket two-step rev limiter lets you set one (lower) limiter appropriate to launch, also a higher limit appropriate to when you're upshifting as you accelerate away. Anti-lag does something similar, but it's focused supported by dumping fuel into the tire system, therefore it can catch fire further downstream from the combustion hall also aid the turbo or turbos spool up to construct boost.

Want a extra in-depth explanation? Here's Fenske with the scoop.

If you can't perceive the YouTube video above, click here.

Fenske also put together a video demonstrating the anti-lag means supported by the modern Veloster N, which comes level with the aspect from the factory. The means is similar, using timing to retard ignition also shove a heated air-fuel mixture into the tire to keep the turbo spooled off-throttle. Hyundai says its main purpose is appropriate to sound, but in the car's most hostile drive mode, it does actually do business like a true anti-lag system. Clever stuff.

If you can't perceive the YouTube video above, click here.

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writing this was posted onlabel , date11-09-2019