Drag Race GTX4508R, 52 Trim, 77.8 Inducer, 108 Exducer – Garrett P/N: 800270-2

Built for racers who live and die by class rules, the Drag Race GTX4508R is a purpose-engineered compressor solution for competitors limited to a 78mm wheel specification. This bare turbine core lets serious drag racing teams pair a class-legal compressor wheel with the turbine housing of their choice, all while retaining the bolt-in simplicity of an existing GT45 setup. It’s the choice for teams who need every fraction of a millimeter to count without sacrificing compatibility.

Specifications

• Compressor Wheel Trim: 52
• Compressor Wheel Inducer: 77.8 mm
• Compressor Wheel Exducer: 108 mm
• Bearing Type: Ball Bearing
• Turbine Housing: Not included — mates to any GT45 series turbine housing
• Compressor Housing Style: Same as GT45
• Garrett P/N: 800270-2
• Alternate P/N: 800270-5002
• Alternate P/N: 800270-5002s

Performance & Application

This special 52 trim configuration was built specifically to meet drag racing class requirements that cap compressor wheel diameter at 78mm, giving competitors a legal way to maximize flow within the rules. Because the turbine side mates to any GT45 series turbine housing, tuners can dial in the exact spool and top-end characteristics their combination demands. It’s externally interchangeable with an existing GT45 turbo setup, meaning no fabrication headaches when swapping into a proven platform. This is a component for serious drag racing applications where class compliance and turbine housing flexibility are non-negotiable.

Compatibility & Fitment

• Turbine side mates to any GT45 series turbine housing
• Externally interchangeable with an existing GT45 turbo setup

Frequently Asked Questions

Does this turbo come with a turbine housing?

No, this is a bare turbine core with NO turbine housing included. The turbine side mates to any GT45 series turbine housing.

Why does this GTX4508R use a 52 trim, 77.8mm inducer configuration?

This turbo is built to meet class requirements that limit competitors to a 78mm compressor wheel, making the 77.8mm inducer specification class-legal for drag racing.

Can this replace my existing GT45 turbo setup?

Yes, it is externally interchangeable with an existing GT45 turbo setup and uses the same compressor housing style as GT45.

What do the P/N 800270-5002 and 800270-5002s refer to?

These are applicable Garrett part numbers associated with this Drag Race GTX4508R, alongside the primary P/N 800270-2.

For drag racing programs bound by strict compressor wheel class rules, the Drag Race GTX4508R delivers a compliant, GT45-compatible solution without forcing a compromise on turbine housing selection.