The GTX4502R Drag Race turbo is purpose-built for competitors racing in classes that cap compressor wheel size at 72mm, giving teams a way to stay within the rulebook without sacrificing the ball bearing performance Garrett’s GTX platform is known for. This is a compressor-side solution for racers who already have or plan to source a GT45 series turbine housing separately, making it a targeted upgrade rather than a complete drop-in unit. Built for serious class racing, it’s designed for teams who need documented, class-legal wheel dimensions backed by Garrett engineering.
Specifications
- Compressor Wheel Inducer: 71.8mm
- Compressor Wheel Exducer: 102.3mm
- Compressor Wheel Trim: 49
- Turbine Wheel Inducer: 87.0mm
- Turbine Wheel Exducer: 80.2mm
- Turbine Wheel Trim: 85
- Bearing Type: 360-degree thrust ball bearing
- Garrett P/N: 800269-10
Performance & Application
This GTX4502R variant is engineered specifically for drag race classes that restrict compressor wheel size to 72mm, giving competitors a legal path to GTX-level performance within those limits. The turbo ships without a turbine housing, so it’s intended for racers who will pair it with a compatible turbine housing to complete the build. Its ball bearing architecture is aligned with Garrett’s race-focused GTX-R lineup, positioning it for teams chasing consistent, repeatable performance on the strip within strict class rules.
Compatibility & Fitment
- Turbine side mates to any GT45 series turbine housing
- Compressor housing style matches the GT42
- Externally interchangeable with an existing GT42 turbo setup
Frequently Asked Questions
- Is this a ball bearing or journal bearing turbo?
- The GTX4502R uses a 360-degree thrust ball bearing.
- Does this turbo come with a turbine housing?
- No, the turbine housing is sold separately.
- Will this work with my existing GT42 setup?
- Yes, it uses the same compressor housing style as the GT42 and is externally interchangeable with an existing GT42 turbo setup.
- What turbine housings are compatible with this turbo?
- The turbine side will mate to any GT45 series turbine housing.
For class racers who need a documented 72mm-limited compressor wheel without giving up ball bearing performance, the GTX4502R (P/N 800269-10) delivers exactly the specs the rulebook demands.

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