TTH EA839 650 Turbocharger Upgrade
Audi RS4 B9 & RS5 F5 – 2.9 TFSI Bi-Turbo
High-performance turbocharger upgrade for the EA839 – significantly increased air flow, high pressure stability and maximum power reserves for uncompromising performance setups.
Description
The TTH EA839 650 turbocharger upgrade represents the next development stage above the 600 setup and is aimed at consistently performance-oriented modifications of the 2.9 TFSI twin-turbo engine (EA839) . Thanks to further optimized compressor and turbine sides, the revised OEM twin-turbochargers enable a significantly higher air mass and offer the necessary reserve for power outputs up to approximately 650 hp . The focus is on maximum pressure stability, controllable response, and high durability under continuous load.
Technology & Construction
- High-performance extended-tip compressor wheels with increased delivery capacity
- CNC-machined compressor housings for gap and flow optimization
- Revised turbine side to reduce exhaust back pressure
- Precise fine balancing for smooth running at high speeds
- OEM base housing with plug-and-play fit
- Development and manufacturing in Germany
Application area & performance
- Designed for performance setups up to approximately 650 hp
- High pressure stability at increased boost pressure
- Significantly increased power reserve compared to the standard model
- Consistent performance even under high thermal stress
Conversion note
- Machining of the delivered series turbochargers
- Turbochargers must be in perfect working order.
- In case of damage or wear, an inspection is necessary beforehand.
compatibility
- Audi RS4 B9 – 2.9 TFSI Bi-Turbo (EA839)
- Audi RS5 F5 – 2.9 TFSI Bi-Turbo (EA839)
The achievable performance depends on the overall setup, additional hardware used, fuel quality and tuning.
Notes
To use this upgrade , performance-tuned engine components and individual ECU remapping are mandatory. Installation and commissioning must be carried out by a qualified workshop . Changes to performance and emissions may restrict the vehicle's legality for use on public roads.
© Kraftfahrzeug Technik Hannover (KTH)
