BorgWarner SuperCore EFR-8370 - Aluminum CHRA

EFR8370, more power paired with even better throttle response and light weight thanks to aluminum CHRA

Original EFR SuperCore turbocharger without turbine housing

Tailoring to the needs of the end users that push pressure ratio and rotor speeds to the limits, the 475 to 700 HP capable EFR 8370 pairs the high pressure ratio compressor stage form the EFR 8374 with the turbine stage from the EFR 7670. The tip speed of the 70mm turbine wheel is slower than the 74mm turbine wheel rotating at the same shaft speed. The lower tip speed provides additional altitude and pressure ratio margin. This hybrid rotor group also introduces a useful option for customers looking to bridge the gap between our most popular B1 turbo (EFR 7163) and B2 turbo (EFR 8374).

SuperCores are cartridges (CHRA) with compressor housing. They can be combined with any turbine housings for this turbocharger. This is particularly suitable if the desired configuration of the turbocharger with the desired exhaust gas housing is not available directly or if you want to use an turbine housing from a third-party manufacturer. In addition to the cartridge, the mounting kit for the turbine housing as well as the exhaust gas housing itself is always required. If the exhaust gas housing has a wastegate flap, you also need an internal wastegate actuator and a suitable holding plate.

SuperCores are cartridges (CHRA) with compressor housing. They can be combined with any turbine housings for this turbocharger. This is particularly suitable if the desired configuration of the turbocharger with the desired exhaust gas housing is not available directly or if you want to use an turbine housing from a third-party manufacturer. In addition to the cartridge, the mounting kit for the turbine housing as well as the exhaust gas housing itself is always required. If the exhaust gas housing has a wastegate flap, you also need an internal wastegate actuator and a suitable holding plate.

Material CHRA: Aluminium
Horsepower range: 475 - 700 HP
Compressor wheel: Inducer 62mm, exducer 83mm
Compressor housing: Inlet 101,6mm, Exducer: 63,5mm
Turbine wheel: Inducer 61mm, exducer 74mm
Turbine housing: None because SuperCore
CHRA type B2-series, all turbine housings for the EFR-7670 will also fits for EFR-8370

BorgWarner EFR Turbocharger was developed and built with only one goal in mind: To dominate on the road, race track and the 1/4 mile. BorgWarner EFR turbocharger features the latest high-tech features, unbeatable performance and top quality.
EFR turbos are available in 8 different sizes and 7 different turbine housings, the power ranges from 250-1100HP.
The combination of high-efficiency compressor wheel, gamma titanium aluminide Turbine wheel combined with ceramic ball bearing technology sets the benchmark for racing turbochargers to the top and represents the highest level in racing sport turbocharging technology:

Compressor:
- Forged milled compressor wheel
- Integrated compressor recirculation valve
- Integrated boost control solenoid valve
- 360° rotatable by Vband technology
- Prepared for speed sensor (optionally available) for recording the speed of the compressor wheel. There you can analyse the compressor efficiency.

Cartridge:
- Dual ceramic ball bearings
- Oil restrictor integrated
- Water-cooled

Turbine wheel:
- Gamma-Titanaluminid turbine wheel and shaft, 50% lighter than comparable Inconel Turbine wheel and extremely heat resistant up to 1050°C (for comparison: Garrett only up to 950°C)
- High efficient turbine wheel