The Garrett Supercore GXR55-88mm is built for racers who demand precision-matched components straight from Garrett’s GX-Race platform. Designed around the demanding requirements of Class X275 competition, this Supercore gives serious drag racing and high-boost applications a genuine Garrett foundation to build a class-legal turbo system around. This is the core assembly enthusiasts trust when consistency, wheel matching, and Garrett engineering integrity are non-negotiable.
Specifications
- Compressor Wheel: 88mm
- Ported Shroud: 0.25″ PS
- Surge Slot Width: 0.25″
- Turbine Wheel: 106mm (full size)
- Class: X275
- Garrett P/N: 934174-5007S
- Also Known As: GX-Race55, GXR55-88
Performance & Application
The GXR55-88mm Supercore is engineered for competitors running in Class X275, where every component must meet strict class regulations while still delivering maximum performance. Its 0.25″ ported shroud design with matched surge slot width is intended to extend the usable range of the compressor map for high-boost, high-RPM racing conditions. Paired with the full-size 106mm turbine wheel, this core is built to move the volume of exhaust gas required in serious drag racing applications. This Supercore serves as the foundation for a complete turbo build tailored specifically to Class X275 competition.
Frequently Asked Questions
- What racing class is the GXR55-88mm designed for?
- This Supercore is built specifically for Class X275 competition.
- What size is the turbine wheel?
- It features a full size 106mm turbine wheel.
- What does the “0.25” PS” designation mean?
- It refers to a 0.25″ ported shroud with a matching surge slot width.
- What does GX-Race55 refer to?
- GX-Race55 is another name for the GXR55 platform this Supercore is built on.
For Class X275 competitors who refuse to compromise on core quality, the genuine Garrett GXR55-88mm Supercore delivers the exact specification foundation your build requires.
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