Definition
Higher boost increases airflow and power but raises heat, knock risk, and stress on internals.
Boost targets must align with fuel octane, timing, and engine hardware limits.
Automotive Wiki
Forced Induction
Boost Pressure
Manifold pressure above atmospheric, usually measured in psi or bar.
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.
- Twin TurboA setup using two turbochargers, either in parallel or sequential configuration.
Category: Forced Induction · Updated August 31, 2026