BorgWarner EFR 9180 Turbo
Description
EFR 9180 is the biggest, baddest, highest flowing turbo in the EFR family. Capable of a remarkable 94lb/min airflow and stable at very high boost levels, the 91mm OD compressor measures 67.7mm inducer and is a 7 blade FMW compressor. This turbo will redefine what 67mm turbos are capable of. After receiving requests from many high power enthusiasts and drag racers restrained to a 67mm inducer, there was a clear need for 1000hp capable turbos that still provide good spool and response. Using the high flowing 1.05 a/r Twinscroll T4 turbine housing is the most efficient way to run this as a single turbocharger. If twin turbos will be run, the .83 a/r or 1.05 a/r can be used, depending on manifolds and space constraints. Ideal for use as single turbo applications in the 700-1000hp per turbo range, or as very high power twin turbo applications >1000-1700+hp. Available with .83 a/r undivided T3 internal WG or 1.05 a/r divided twinscroll T4 housings (external WG). Ceramic Ball Bearing only, watercooling optional (recommended)
Compressor Specifications
- Compressor Type: Forged-Milled Wheel (FMW) Extended Tip
- Compressor Wheel OD (exducer): 91mm
- Compressor Wheel Inducer: 67.7mm
- Max Flow Rate: 94 lb/min
- Built-in BOV: All EFR compressor housings incorporate an integrated BOV.
- Compressor Housing Connections:
- Inlet: 4" Ported Shroud Hose Coupler
- Outlet: 2.5" Hose Coupler w/ integrated Vband option
Turbine Specifications
- Turbine Type: Low Inertia Gamma-Ti Turbine Wheel
- Turbine Wheel OD: 80mm
- Stainless Steel Investment cast Housing
The EFR 9180 is available in (2) different turbine housing configurations:- 0.83 A/R T3 undivided (Internal WG)
- 1.05 A/R T4 twinscroll (external WG)
- Turbine outlet: GT-Vband (aka small 3" vband) ~92mm OD for all EFR turbos
Features
- Dual Row Ceramic Ball Bearings - lowest friction and fastest spool/response, most extreme durability, built-in oil control orifice - (aka oil restrictor) **no restrictor can be used with EFR turbos
- Watercooled Center Section - watercooling is recommended, 14mm banjo bolts
- Double seals on both turbine and compressor end for extreme durability and resistance to any oil seepage
- Boost Control Solenoid Valve Integrated to Compressor Housing
- Integrated Speed Sensor mounting provisions
Testing
Below is a dyno chart from the Sierra Sierra Evo. Tuned by Eric Hsu of Cosworth, and using a complete cosworth race engine, the SSE evo is equipped with the EFR 9180, Full-Race Twinscroll Manifold, 2.2L engine, revving to 8500rpm with ~32 lbs (2 bar) of boost.
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