Definition
Used as a safety margin on high-boost street and track setups.
Tank level monitoring and fail-safe strategies prevent lean conditions if the system runs dry.
Automotive Wiki
Forced Induction
Water-Meth Injection
Injecting a water-methanol mix to reduce intake temps and suppress knock on boosted engines.
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