Garrett GT2554R Ball Bearing Turbocharger

The Garrett GT2554R turbocharger is engineered for high-performance applications, offering a significant power upgrade. It is designed to support engine displacements ranging from 1.4 to 2.2 liters, with a stated power output capability between 170 and 270 horsepower. This unit features a robust construction, including a T25 single-scroll inlet and an internal wastegate for precise boost control. The turbine wheel is made from Inconel for superior heat resistance, while the compressor wheel is cast aluminum. The turbocharger employs a dual ball-bearing system, which provides enhanced spool characteristics and durability compared to journal bearings. The Center Housing Rotating Assembly (CHRA) is water-cooled to maintain optimal operating temperatures under high-load conditions. Key specifications include a 0.64 A/R turbine housing with a 5-bolt outlet. The compressor side features an inducer diameter of 42.10mm and an exducer diameter of 54.30mm. The turbine side has an inducer diameter of 53mm and an exducer diameter of 41.70mm. The turbocharger is supplied with the Garrett part numbers 836023-5001S and 471171-5003S. This turbo is described as having very good response for 4-cylinder applications.