The Garrett GTX4508R represents the pinnacle of the ball bearing GTX-R series within the GT45 lineup, engineered for the most demanding competition builds. This turbocharger is built for racers and high-horsepower engine builders who need extreme flow capacity and the ability to handle massive boost levels without compromise. If your build requires uncompromising top-end power and a platform proven on the track, this is the unit to specify.

Specifications

• Compressor Wheel Inducer: 80 mm
• Compressor Wheel Exducer: 108 mm
• Compressor Wheel Trim: 55
• Compressor Housing A/R: 0.69
• Compressor Housing Type: Regular (fullsize)
• Turbine Wheel Inducer: 87 mm
• Turbine Wheel Exducer: 80 mm
• Turbine Wheel Trim: 85
• Turbine Housing A/R: 1.16
• Turbine Housing Brand: Tial
• Turbine Housing Material: Stainless Steel
• Bearing Type: Ball Bearing
• HP Capacity: 1400 HP

Performance & Application

The GTX4508R is purpose-built for competition engines chasing serious horsepower numbers, with a capacity rated to handle up to 1400 HP. As part of the ball bearing GTX-R series within the GT45 range, this unit delivers a more efficient and more potent flow characteristic than previous generations, allowing it to handle significantly more boost. It’s the right choice for race-proven applications where extreme top-end power and high-efficiency airflow are the priority.

Frequently Asked Questions

What HP can the GTX4508R support?

This unit is rated to support up to 1400 HP.

Is the GTX4508R a ball bearing or journal bearing turbo?

The GTX4508R uses a ball bearing design as part of the ball bearing GTX-R series.

What is the turbine housing A/R ratio?

The GTX4508R comes with a Tial 1.16 A/R stainless steel turbine housing.

What is the compressor housing A/R ratio?

The compressor housing A/R ratio is 0.69.

For competition engines demanding extreme boost capability and race-proven flow efficiency, the Garrett GTX4508R stands as a top-tier choice within the GT45 platform.