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Borg Warner EFR 9180 Turbo

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Details

The EFR9180 is BorgWarner's answer to the goal of a 1000hp capable turbo with unparalleled spool and response. Winning races is the purpose of this turbo. Honda's Indycar Team, 2013 and 2014 World Time Attack Champions Tilton Racing, 2012 WTAC champs Nemo-Racing, FXMD NSX and many more - this turbo redefines what 67mm turbos are capable of.

EFR 9180 is the biggest, baddest, highest flowing turbo in the EFR family. Capable of a remarkable 94lb/min airflow and stable at high boost levels, the 91mm OD compressor measures 67.7mm inducer and is a 7 blade extended-tip FMW compressor wheel design. Utilizing the identical design and material turbine and compressor wheels as Honda's IndyCar 2.2L single turbo engines, EFR9180 is 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 IWG) or 1.05 a/r and 1.45 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 Sand cast Housing

 

    The EFR 9180 is available in (3) different turbine housing configurations:
  • 0.83 A/R T3 Undivided (Internal WG)
  • 1.05 A/R T4 Twin Scroll (external WG)
  • 1.45 A/R T4 Twin Scroll (external WG)
  • Turbine outlet: GT-Vband (aka small 3" vband) ~92mm OD for all EFR turbos

Low Inertia Turbine Wheel
Gamma-Ti turbine wheel cuts turbine inertia by roughly 50% dramatically improving turbo response.  Turbine sizes range from 55 to 80mm in exducer diameter.

Heat Resistant Turbine Housings
Investment cast stainless steel turbine housings improve durability and offer an offer extremely smooth internal flow channel. Turbine housings have thin walls to reduce weight and thermal inertia.

High Turbine Efficiency
Superback” and “Fullback” back-disk shapes offer very high efficiencies. The Superback shape adds a curved profile to the back-disk and has the effect of lowering centrifugal stress and permitting higher rotational speeds.

Enhanced Turbo Response
EFR turbochargers use a dual-row ball bearing cartridge with ceramic balls and metal cage.  This bearing system provides substantial friction reduction at low turbo speeds and in the process helps improve turbo response.  Metal cage improved the durability of the ball bearing assembly

Flexible Compressor Cover
The EFR turbo “large” cover has a dual-machined outlet, both for a hose connection and a v-band connection.

Simplified Installation
Integrated compressor recirculation valve (CRV) to help avoid compressor surge and backflow during a throttle lift event.  This feature helps to simplify the installation task and lowers overall system install cost.

Forged Milled Compressor Wheels (FMW)
EFR turbos contain wheels that are fully milled from forged aluminum, commonly known as “billet”.  Cut from custom forgings, their strength exceeds that which is available from typical bar-stock and also exceeds the material properties of an aluminum casting

Sensor Mounting Convenience
Speed sensor mounting provisions are also supplied on every compressor cover.  Speed sensors are sold separately.

Boost Control Solenoid Valve (BCSV)
A boost control solenoid valve (BCSV) is included with every EFR turbo.

High Flow Wastegates
Purpose designed large wastegate ports give the wastegated EFR turbos the capability of handling the flow requirements of high performance applications.

Ease of Orientation
Turbo orientation flexibility is facilitated by the wastegate bracket to bearing housing mounting arrangement.

Adjustable Wastegate
The fabrication and installation task is simplified with wastegated EFR models that feature adjustable wastegates available in three different canister sizes.

 

 

 

Additional Information

Manufacturer Name Borg Warner
Supported Cars Borg Warner EFR 9180 Turbo