The Garrett GTX4508R represents the pinnacle of the ball bearing GTX-R series within the GT45 lineup, engineered for serious racers who demand maximum airflow and boost capacity from a fullsize compressor package. Built for high-horsepower race applications where efficiency and top-end power are non-negotiable, this turbocharger is the choice for builders pushing well beyond stock power ceilings. Its combination of a large compressor wheel and a stainless steel Tial turbine housing makes it a purpose-built unit for extreme performance builds.

Specifications

• Compressor Wheel Inducer: 80 mm
• Compressor Wheel Exducer: 108 mm
• Compressor Wheel Trim: 55
• Compressor Housing A/R: 0.69
• Turbine Wheel Inducer: 87 mm
• Turbine Wheel Exducer: 80 mm
• Turbine Wheel Trim: 85
• Turbine Housing: Tial 1.02 A/R Stainless Steel
• Bearing Type: Ball Bearing
• HP Capacity: 1400 HP

Performance & Application

The GTX4508R is engineered for race applications demanding massive airflow and the ability to handle significantly higher boost levels than earlier GT45 variants. This ball bearing platform is an evolved, more efficient version of the GT45 range, delivering greater horsepower potential while maintaining the responsiveness expected from Garrett’s GTX-R series. The stainless steel Tial turbine housing is built to withstand the thermal and boost demands of sustained high-output racing. This unit is suited for builders targeting the upper limits of horsepower in dedicated racing environments.

Frequently Asked Questions

What HP can the GTX4508R support?

This unit is capable of supporting up to 1400 HP.

Is the GTX4508R a ball bearing or journal bearing turbo?

The GTX4508R is part of the ball bearing GTX-R series of the GT45 range.

What turbine housing does the GTX4508R use?

It features a Tial 1.02 A/R stainless steel turbine housing.

What is the compressor housing A/R ratio?

The compressor housing A/R ratio is 0.69.

For racers who need proven high-boost capability and maximum flow from a fullsize compressor, the Garrett GTX4508R delivers the power ceiling and durability to match the most demanding builds.