Turbo Boost Basics: Understanding Forced Induction

Forced Induction Types\n\n### Turbochargers\n\nExhaust-driven compressor. Efficient but has lag (delay before boost builds).\n- Best for: Maximum power potential, efficiency\n- Lag can be mitigated with smaller turbos or twin-scroll designs\n\n### Superchargers\n\nBelt-driven compressor. Instant response but parasitic power loss.\n- Roots: Traditional muscle car whine, heat buildup\n- Twin-screw: More efficient, less heat\n- Centrifugal: Like a belt-driven turbo, boost builds with RPM\n\n## Boost Pressure\n\nMeasured in psi or bar. More boost = more air = more fuel needed = more power.\n\n### Safe Boost Levels\n\n- Stock internals: 6-12 psi depending on engine\n- Forged internals: 15-25+ psi possible\n- E85: Allows higher boost than pump gas\n\n## Supporting Modifications\n\nRequired for boost:\n- Fuel system upgrades (injectors, pump)\n- Intercooler (air-to-air or air-to-water)\n- Proper tuning (essential)\n- Boost controller (manual or electronic)\n\nRecommended:\n- Upgraded clutch\n- Catch can (PCV management)\n- Wideband O2 sensor for tuning\n\n## Common Tuning Terms\n\n- AFR: Air-fuel ratio (target 11-12:1 at WOT for gas)\n- Knock: Detonation from too much timing or too lean\n- Wastegate: Controls maximum boost pressure\n- BOV/BPV: Releases pressure on throttle lift