The GTX4718R is a race class-engineered turbocharger built specifically for competition classes that mandate an 88mm compressor wheel limit. Designed for serious drag racers and class-legal builders who need to stay within strict technical rules without sacrificing performance, this turbo delivers Garrett’s proven GTX platform in a configuration tailored for competition compliance. It’s the choice for teams who demand class-legal power without compromise.

Specifications

• Compressor Wheel Inducer: 87.8mm
• Compressor Wheel Exducer: 117.6mm
• Compressor Wheel Trim: 56
• Turbine Wheel Inducer: 92.7mm
• Turbine Wheel Exducer: 84mm
• Turbine Wheel Trim: 82
• Garrett P/N: 804878-5007S

Performance & Application

This turbo is purpose-built for class requirements that are limited to an 88mm compressor wheel, making it ideal for drag racers and import face-off competitors who need to meet strict technical inspection standards. It shares the same compressor and turbine housing style as the GT47 and GTX47 platforms, giving builders familiar packaging and proven housing architecture. This unit is sold without a turbine housing, allowing racers to pair the core with the specific housing configuration their class or application demands.

Compatibility & Fitment

• Same compressor and turbine housing style as GT47 / GTX47
• Externally interchangeable with an existing GT47 turbo setup
• Built to meet class requirements limited to an 88mm compressor wheel

Frequently Asked Questions

Does the GTX4718R include a turbine housing?

No, this turbo does not include a turbine housing — it is sold without one, and the turbine housing must be purchased separately.

Is the GTX4718R interchangeable with existing GT47 setups?

Yes, it is externally interchangeable with an existing GT47 turbo setup and shares the same compressor and turbine housing style as the GT47 / GTX47.

What compressor wheel trim does the GTX4718R use?

The GTX4718R uses a 56 trim compressor wheel with an 87.8mm inducer and 117.6mm exducer.

Why is this turbo limited to an 88mm compressor wheel?

The GTX4718R is race class designed specifically for class requirements that restrict competitors to an 88mm compressor wheel.

For class-legal competitors who need Garrett performance within strict 88mm compressor wheel limits, the GTX4718R delivers the exact specification required — paired with a turbine housing of your choice for a fully class-compliant build.