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Forced Induction

Anti-Lag System

A system keeping the turbo spooled by igniting fuel in the exhaust when off throttle.

Definition

Anti-lag reduces turbo lag in rally and track applications.

It increases exhaust temperature and stress on turbo components.

Related terms

  • TurbochargerAn exhaust-driven compressor that forces extra air into the engine to increase p
  • SuperchargerA belt-driven compressor providing immediate boost without waiting for exhaust e
  • IntercoolerA heat exchanger that cools compressed intake air before it enters the engine.
  • Blow-Off ValveA valve that vents pressurized intake air when the throttle closes to protect th
  • WastegateA valve regulating exhaust flow to the turbo turbine to control boost pressure.
  • Boost PressureManifold pressure above atmospheric, usually measured in psi or bar.

Category: Forced Induction · Updated August 31, 2026