The Garrett GTX4508R represents the pinnacle of the GTX-R ball bearing lineup within the GT45 family, purpose-built for serious race applications demanding maximum airflow and boost capacity. This turbocharger is engineered for builders chasing four-digit horsepower numbers who refuse to compromise on efficiency or top-end potential. With multiple turbine housing configurations available, it’s the choice for enthusiasts who need a turbocharger that can be tailored precisely to their power goals.
Specifications
- Compressor Wheel Inducer: 79.8 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
- Bearing Type: Ball Bearing
- HP Capacity: Up to 1400 HP
- Turbine Housing Flange: Divided T4
- Turbine Housing Discharge: 4″ V-band
- Turbine Housing A/R Options: 1.01, 1.15, 1.28, 1.44
- Alternate Turbine Housing: Tial Stainless V-band inlet and outlet housing, available in 1.02, 1.16, or 1.30 A/R
- Compressor Housing Style Option: GT4 (smaller GT42/GTX42 style compressor housing available)
- Finish Options: Standard or Polished
Performance & Application
The GTX4508R is built for race applications where extreme horsepower and boost handling are the priority. As part of the GTX-R series evolution of the GT45 range, this unit delivers greater efficiency and flow than previous versions, allowing it to handle significantly more boost. The multiple turbine housing A/R options give tuners the flexibility to dial in the exact balance of spool characteristics and top-end power required for their specific race build. This is a turbocharger designed for teams and builders operating at the highest levels of forced induction performance.
Frequently Asked Questions
- What horsepower can the GTX4508R support?
- This unit is capable of supporting up to 1400HP.
- Is the GTX4508R a ball bearing or journal bearing turbocharger?
- The GTX4508R is a ball bearing turbocharger, part of the GTX-R ball bearing series.
- What turbine housing options are available for the GTX4508R?
- Turbine housing options include a standard divided T4 flanged housing with a 4″ V-band discharge in 1.01, 1.15, 1.28, or 1.44 A/R, as well as a Tial Stainless V-band inlet and outlet housing in 1.02, 1.16, or 1.30 A/R.
- Can the compressor housing be changed on the GTX4508R?
- Yes, there is an option to select the smaller GT42/GTX42 style compressor housing in place of the standard housing.
For builders who demand uncompromising boost capacity and the flexibility to match turbine housing specifications to their exact power targets, the GTX4508R stands as one of the most capable options in the GTX-R series.
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