Turbocharging System: Description

The turbocharging system is mounted on top of engine. It includes a turbine/compressor assembly, plenum chamber, wastegate, and carburetor. Turbine is spun by exhaust gas and causes compressor force air into intake manifold.

A slightly modified 4-barrel carburetor provides air and fuel to compressor assembly. Maximum manifold pressure (boost) is controlled by an exhaust by-pass valve called a wastegate. This valve, sensing pressure differences through a diaphragm type actuator. It determines how much exhaust should be routed to turbine. Any excess exhaust gas is by-passed into exhaust system.