The Garrett Supercore G-XRace GXR55-88mm is engineered for drag racing competitors who demand a purpose-built core matched to the demands of Class X275 competition. Built on the GX-Race55 platform, this Supercore combines a precision-matched compressor and turbine wheel package designed for racers who need consistent, repeatable performance at the strip. It’s the choice for builders assembling a dedicated X275-class turbo system around genuine Garrett engineering.
Specifications
- Model: GXR55-88mm GXRace
- Ported Shroud Surge Slot Width: 0.18″
- Turbine Wheel: 103mm (103TW)
- Class Rating: X275
- Product Line: GX-Race55
- Garrett P/N: 934174-5008S
Performance & Application
This Supercore is purpose-built for X275 class drag racing applications, where the specific 0.18″ ported shroud surge slot width and 103mm turbine wheel combination are tuned to deliver the response and top-end characteristics competitors need to stay within class rules while maximizing output. As part of the GX-Race55 family, it’s designed for enthusiasts and race teams building a dedicated competition turbo system rather than a street-driven setup. The ported shroud design is intended to extend the usable compressor map, giving racers a wider effective operating range at the track.
Frequently Asked Questions
- What class is the GXR55-88mm rated for?
- This Supercore is built to Class X275 specifications.
- What turbine wheel does this Supercore use?
- It uses the special 103mm turbine wheel (103TW).
- What is the ported shroud surge slot width on this unit?
- The ported shroud surge slot width is 0.18″.
- What compressor wheel size is used on the GXR55-88mm?
- This Supercore uses the 88mm compressor wheel, as indicated by the GXR55-88 designation.
For racers targeting X275 class performance, the Garrett Supercore G-XRace GXR55-88mm delivers the exact wheel and surge slot configuration engineered for the class — genuine Garrett engineering built to compete.
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