Pavel’s Racing Engines now offers repair and rebuild services for 2009+ Subaru Impreza WRX IHI VF52 turbochargers. This turbocharger was improperly used and heavily abused causing thrust bearing failure, in turn causing turbine seal failure and excessive oil consumption. This turbocharger was disassembled, cleaned, inspected, all clearances checked with micrometers and bore gauges, and rebuild with all new consumable components. Compressor wheel was replaced and rotating assembly balanced. IHI turbochargers are known to suffer from boost creep issues, thus we opted to polish the turbine housing inlet. Most importantly, we modified the wastegate port in effort to reduce boost creep condition.
This is the finished product of our work: