Cosworth teams up with Borg Warner on new EFR Turbocharger series
is pleased to be part of a revolutionary change to the performance turbocharger
market working with Borg Warner as a technical and distribution partner of
their new EFR series performance turbochargers.
Over the last several months, Cosworth has carried out numerous tests in
both controlled engine dynamometer cells in Torrance, California along with severe
on-track analysis of the Borg Warner product with exciting results. The EFR
Turbocharger lineup includes 16 different configurations with output
capabilities ranging from 375hp up to 1000hp and include a list of exclusive performance features not found in other brands.
Additionally, the feature rich EFR
Turbocharger lineup will be a key component in the new range of Cosworth
Turbocharger Set-Up Kits for popular performance vehicles such as the Subaru
STI and Mitsubishi EVO X that will be released for sale in the coming months. Look for more details soon on the Cosworth Turbocharger Set-Up Kits featuring the EFR Series Turbochargers as well as the complete line of Borg Warner EFR Turbochargers, distributed by Cosworth.
EFR Series features and benefits.
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 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 backdisk and has the effect of lowering centrifugal stress and permitting higher rotational speeds.
Enhanced Turbo Response
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.
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.
The fabrication and installation task is simplified with wastegated EFR models that feature adjustable wastegates available in three different canister sizes.