Garrett GTX4718R – 88mm (aka GTX47-88) with a 1.08 A/R T6 V-Band Turbine Hsg.

The Garrett GTX4718R is a purpose-built 88mm dual ball bearing turbocharger engineered for enthusiasts who demand immediate throttle response without sacrificing top-end capability. Built on Garrett’s GEN2 platform, this turbo is designed for serious builds where spool characteristics and durability under sustained boost matter as much as peak output. It’s the choice for tuners and racers who need a turbo that reacts instantly and holds up to repeated high-load cycles.

Specifications

• Bearing Type: Dual Ball Bearing
• Compressor Wheel Inducer: 87.8mm
• Compressor Wheel Exducer: 117.6mm
• Compressor Wheel Trim: 56
• Compressor Housing A/R: 0.69
• Compressor Inlet: 6″
• Compressor Outlet: 3.5″ V-Band
• Turbine Wheel Inducer: 92.7mm
• Turbine Wheel Exducer: 84mm
• Turbine Wheel Trim: 82
• Turbine Housing A/R: 1.08
• Turbine Housing Inlet: T6
• Turbine Housing Outlet: 5″ V-Band
• Also Known As: GTX47-88

Performance & Application

This GTX4718R is engineered to deliver the most responsive spool characteristics available in Garrett’s 88mm performance turbo lineup. The 0.69 A/R compressor housing paired with the 1.08 A/R T6 turbine housing creates a combination tuned for quick boost buildup while maintaining strong flow capability at higher RPM. The V-band inlet and outlet configuration on both the compressor and turbine sides offers flexible, universal mounting for custom turbo system fabrication. This unit is well suited to builds prioritizing throttle response and driveability alongside serious power potential.

Frequently Asked Questions

Is the GTX4718R a ball bearing or journal bearing turbo?

The GTX4718R is a dual ball bearing turbocharger.

What does GTX47-88 refer to?

GTX47-88 is an alternate name for the Garrett GTX4718R.

What are the A/R ratios on this turbo?

The compressor housing uses a 0.69 A/R, while the turbine housing uses a 1.08 A/R with a T6 inlet.

What inlet and outlet connections does the GTX4718R use?

The compressor housing features a 6″ inlet and a 3.5″ V-Band outlet, while the turbine housing features a T6 inlet and a 5″ V-Band outlet.

For builds that demand instant response from an 88mm-class turbo without compromise, the Garrett GTX4718R (GTX47-88) delivers a proven, engineered solution.