PRE Tuning

Category Archives: Blog

Saab 9-3 2.0T Garrett T25 Turbo Rebuild

This is another type of Garrett T25 turbo we rebuilt at PRE. This particular turbo was in decent shape when it came in. It only needed our basic rebuild service to make it 100% again. Please look in the Turbo Services section for exact description of rebuild process. APPLICATION: 1998-2002 Saab 9-3…B204E, B204L, B204R, B205E, […]


Subaru Impreza STI IHI VF39 Turbo Rebuild

This is an IHI VF39 turbocharger removed from a 2005 Subaru Impreza STI. The turbo was in decent condition to begin with and only needed a complete rebuild kit for the overhaul. Customer complained of minor oil consumption and smoking from the exhaust pipe. Inspection revealed a worn out turbine shaft seal. Complete rebuild was […]


Subaru TD06H-20G Turbo Rebuild

Another turbo rebuild at PRE. This time we received a Subaru turbo that suffered a catastrophic failure. This turbo broke the turbine shaft due to lack of lubrication. Compressor wheel, bearing housing, turbine rotor shaft, and all consumable parts(bearings, thrust collar, shaft seals, o-rings, clips, and hardware). Turbine housing was media blasted by hand and […]


Hyundai Genesis Coupe 2.0T Theta engine disassembly, evaluation, and comparison to the Mitsubishi Evo X 4B11T

Today we started a new project. Customer submitted a Hyundai Genesis Coupe Theta 2.0T engine for us to disassemble, assess build quality, and suggest upgraded parts for increased performance and reliability. Initial observations: the new engine is an all aluminum inline 4. The block is lighter than the old 4G63. Contrary to the old 4G63 […]


Turbocharger Installation Instructions

TURBO INSTALLATION INSTRUCTIONS (All items may not apply to your application.) READ THIS FIRST! PRIOR TO ATTEMPTING A TURBOCHARGER INSTALLATION YOU MUST COMPLETELY READ AND UNDERSTAND THE INSTRUCTIONS. IF YOU HAVE ANY QUESTIONS PLEASE CONTACT US FOR TECHNICAL SUPPORT. When installing a turbocharger, you must observe the following instructions: Change oil and filter prior to […]


Conversion of Ball Bearing Turbos

Most people know ball bearing turbochargers cannot be rebuilt. Manufacturers do not sell parts to service these unit leaving customers with damaged turbochargers no options other than keeping it as an expensive paper weight or send it in through an exchange program. Garrett charges between $800-900 US dollars for a new replacement CHRA, this being […]


Garrett T25 Turbocharger Rebuild

Here are PRE we rebuild a lot of Garrett T25 turbochargers. This turbo is commonly found on Nissan Silvia/180sx/240sx cars equipped with SR20DET engines. A variation of the T25 turbo can also be found on the 2nd generation 95-98 Mitsubishi Eclipse(Eagle Talon), and 98-2002 Saab 9-3. This turbo was rebuilt with all new bearings, seals, […]


2009+ Subaru Impreza WRX IHI VF52 Turbocharger Rebuild

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 […]


Greddy T518Z TD05H-18G Turbocharger Rebuild

This is another sample of our work. We rebuilt this improperly used and heavily abused turbocharger. Compressor wheel was replaced due to extensive wear, bearing housing honed out to accept oversized journal bearings, all new consumable components(piston ring seals, o-rings, c-clips, and hardware), rotating assembly balancing, all followed by careful assembly. The turbocharger is sold […]


Welcome to PRE Tuning, home of Pavel’s Racing Engines

Here at Pavel’s Racing Engines we specialize in engine and turbocharger service for most makes and models of import and domestic vehicles. We also offer stock remanufactured turbochargers. Our focus is quality, reliability, and performance! Pavel’s Racing Engines stands behind their products and gives a 1 year warranty with every unit sold. Browse through the […]


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