An engine configuration designed to eliminate turbo lag by combining a mechanically driven supercharger for low-RPM boost with an exhaust-driven turbocharger for high-RPM power. A bypass valve typically disengages the supercharger once the turbo reaches optimal operating speed.
Heard on the job
Diagnosing a vacuum leak on a twincharger setup is a nightmare with all the extra plumbing.
Related terms
Supercharger
A mechanically driven air compressor that forces extra air into an engine.
Turbosupercharger
An exhaust-driven compressor that forces more air into an engine.
Forced induction
The process of compressing intake air to increase the power output of an internal combustion engine.
Boost
The positive air pressure created in the intake manifold by a forced induction system.