Jrone - About Turbochargers

How does it work?

lncreased Air Density Allows More Air to Enter Cylinder and thus More Fuel can be Burnt Producing More Engine Power More power from same package usually increases efficiency.

Operation of basic turbocharger. A turbocharger is an exhaust-driven turbine which drives a centrifugal compressor wheel.The compressor is usually located between the air cleaner and the engine intake manifold, while the turbine is located between the exhaust manifold and the tail pipe of the exhaust system. The prime job of the turbocharger is, by compressing air, to force more air into the engine cylinders. This allows the engine to efficiently burn more fuel, thereby producing more horsepower.

Turbocharger diagnostic matrix
Basic parts of a Turbocharger

A turbocharger is a turbine driven supercharger. The turbine is driven by waste exhaust gas.

All of the engine exhaust gases pass through the turbine housing. The expansion of these gases, acting on the turbine wheel, causes it to turn. After passing through the turbine, the exhaust gases are routed to the atmosphere. In many cases, the turbine muffles the exhaust sound, so no muffler is needed. The turbine also functions as a spark arrester. For example, it is recognised by the U.S. Department of Agriculture as providing a spark arrester function adequate for forestry operations. The compressor is directly connected to the turbine by a shaft. The only power loss from the turbine to the compressor is the slight friction of the journal bearings.

Turbocharger installation checklist