Garrett G42-1585 G-Series II Super Core

Garrett is well-known for its advanced turbocharger technology, and the G42-1585 G-Series II Super Core is a prime example of their commitment to performance. This super core assembly is designed for builders who need a robust foundation for a custom turbo system. It represents the heart of a turbocharger, housing the compressor and turbine wheels, along with their associated housings, ready for integration into a complete turbo setup.

The G42-1585 features a 1585hp flow rating, indicating its capability to support significant power levels. It utilizes a forged-milled aluminum compressor wheel for a good balance of strength and light weight, contributing to improved spool characteristics. The turbine housing is constructed from stainless steel, a material chosen for its resistance to high temperatures and corrosive exhaust gases, which is crucial for longevity in demanding applications. This super core is built with a dual ball bearing system, which helps reduce friction and allows for quicker turbocharger response compared to journal bearing designs. The advanced aerodynamics of the compressor and turbine wheels are also key to its performance, aiming for improved efficiency across a wider operating range.

This super core assembly is intended for custom turbocharger builds where precise control over component selection is paramount. Because it is a super core, it does not include the exhaust manifold, downpipe, or wastegate, allowing the builder to select these components to perfectly match their specific engine and performance goals. It's important to note that this unit is not CARB approved and cannot be shipped to California. For those building a high-performance engine, this Garrett G-Series II super core offers a solid starting point with proven technology.