Garrett Turbo Tech: Turbine Housings 101 shared from Garrett - Advancing Motion
This article is your one stop guide to understanding the differences between turbocharger turbine housings, flange types and, flange specs. Have you ever asked yourself, “What’s the difference between T3, T4, T6, and V-band turbine housings”? Or maybe, “will a T25 inlet flange work on a T3 manifold”? Or, “what does T3 T4 mean?” If so this article is for you.
Let’s start with some basic principles.
Turbine housing– collects exhaust gasses from an engine and directs it through a volute (passage) which drives the shaft wheel assembly of a turbo causing it to spin. Turbine housings are also referred to as the “hot side” of the turbo because of its continuous exposure to hot exhaust gas. Turbine housings are very robust and manufactured using hi-temp materials with temperature ratings up to 1050° C.
Volute