5″ Outlet 1.15 Divided

This Power Driven turbine housing utilizes a “non-divided’ single scroll design.  This design is superior when the turbo is utilized as the “large” or “atmosphere” Turbo in a compound turbo system.

The standard divided, “Twin Scroll” housings are intended to harness the exhaust pulse energy of each cylinder which will spool a turbo up quicker when mounted to an exhaust manifold.  When the turbo receives its exhaust from the outlet of a smaller turbo the “pulse” energy is gone. At this point a divided housing is less efficient than a non-divided housing.

This housing started life as a 1.15 A/R housing in which we removed the divider.  With the divider gone it acts more like a 1.45 A/R housing even outflowing the standard 1.32 A/R housing.

We recommend this housing for any turbo mounted as the large turbo in a compound turbo system.  Also, we recommend this as the manifold housing for a competition engine where melting out the divider is of bigger concern than quick spoolup.  If the turbo is mounted on the manifold and quick spoolup is important we would recommend the 1.15 A/R Divided housing.

We offer this housing in 2 configurations.

Option 1:  T6 flange with a 4.625” V-band discharge which will easily mate to a 4” downpipe.

Option 2:  T6 flange with standard 5” full Marmon outlet.