The Garrett G45-1125 is a purpose-built turbocharger unit engineered for high-output performance applications demanding serious top-end power without sacrificing responsiveness. Paired with a T4 divided turbine housing, this G-Series unit is designed for enthusiasts and builders who need a turbocharger capable of supporting extreme horsepower goals while maintaining the ball bearing responsiveness Garrett is known for. This is the choice for serious builds where both spool characteristics and peak power matter.
Specifications
- Compressor Wheel Inducer: 67mm
- Compressor Wheel Exducer: 102mm
- Compressor Wheel Trim: 44
- Compressor Housing A/R: 0.85
- Turbine Wheel Inducer: 89mm
- Turbine Wheel Exducer: 82mm
- Turbine Wheel Trim: 84
- Turbine Housing: T4 Divided 1.44 A/R
- Bearing Type: Ball Bearing
- HP Capacity: Up to 1125HP
- Garrett P/N: G45-1125
Performance & Application
The G45-1125 is built for demanding applications where sustained high horsepower output is the goal. The divided T4 turbine housing works to manage exhaust pulses efficiently, supporting responsive boost delivery even as power levels climb. Ball bearing construction ensures the turbo delivers quick spool characteristics relative to its size, making it suitable for builds that require both strong low-end response and the capacity for extreme top-end power. This unit is best suited for demanding performance applications where a capacity of up to 1125 horsepower is the target.
Frequently Asked Questions
- What HP can the G45-1125 support?
- The Garrett G45-1125 is capable of supporting up to 1125HP.
- Is this a ball bearing or journal bearing turbocharger?
- The G45-1125 features ball bearing construction for responsive boost delivery.
- What is the A/R ratio of the turbine housing?
- The G45-1125 comes equipped with a T4 divided turbine housing featuring a 1.44 A/R ratio.
- What is the compressor housing A/R ratio?
- The compressor housing on the G45-1125 features a 0.85 A/R ratio.
For builds targeting up to 1125 horsepower with the responsiveness of ball bearing technology and the exhaust efficiency of a T4 divided housing, the Garrett G45-1125 delivers the performance foundation serious enthusiasts demand.
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