BorgWarner EFR 8474 Turbo
The EFR8474 represents the state-of-the-art from BorgWarner Turbo Systems. The winner of Pike's Peak Unlimited class for the last 2 years, 8474 is intended for applications that require an unmatched response and a broad powerband in the 500-800+hp range.
The EFR8474 represents the state-of-the-art from BorgWarner Turbo Systems. The winner of Pike's Peak Unlimited class for the last 2 years, 8474 is intended for applications that require an unmatched response and a broad powerband in the 500-800+hp range.
The BorgWarner EFR 8474 Turbo Bring State-of-the-art Design and Powerful Performance
The EFR8474 represents the state-of-the-art from BorgWarner Turbo Systems. The winner of Pike's Peak Unlimited class for the last 2 years, 8474 is intended for applications that require an unmatched response and a broad powerband in the 500-800+hp range.
Designed specifically to win races, BorgWarner engineering designed the 84mm compressor wheel with lower inertia than the 83mm it supersedes. The combination of a high flowing 68mm compressor inducer with a low inertia and quick spooling 84mm exducer allows the same footprint to breathe a LOT better up top without compromising low-end response and midrange torque.
Efficiency plateaus are widened as a result and higher pressure ratios can be better utilized. Using Borg Warner’s large inducer “black series” 84mm billet compressor (68mm inducer) the 8474 houses the EFR extended-tip compressor wheel design capable of 95 lb/min airflow rate. Using the same 74mm Gamma-Ti turbine wheel from the EFR8374, this turbo flows an impressive 95lbs/min of air at the same 127k RPM maximum shaft speed. That’s a 22% improvement in flow on the same turbo size! We strongly recommend using an EFR Speed Sensor if you plan to run this turbo to the limit (125krpm+).
Compressor Specifications
- Compressor Type: Forged-Milled Wheel (FMW) Extended Tip
- Compressor Wheel OD (exducer): 84mm
- Compressor Wheel Inducer: 68mm
- Max Flow Rate: 95 lb/min
- Built-in BOV: All EFR compressor housings incorporate an integrated compressor recirculation valve
- Compressor Inlet: 4″ Ported Shroud Hose Coupler
- Compressor Outlet: 2.5″ Hose Coupler w/ integrated Vband option
Turbine Specifications
- Turbine Type: Low Inertia Gamma-Ti Turbine Wheel
- Turbine Wheel OD: 74mm
- Stainless Steel Turbine Housing
- Turbine outlet: GT V-Band (aka 3″ V-Band) ~92mm OD for all EFR turbos
Compressor Map
Features
- Dual Row Ceramic Ball Bearings—lowest friction and fastest spool/response, most extreme durability, built-in 2mm oil restrictor
- 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
- Optional Turbo Speed Sensor Kit
- Optional Turbo Speed Gauge
- EFR 8474 is available in (4) different turbine housing configurations
- 0.83 A/R T3 Undivided (Internal WG) #12741008000
- 0.92 A/R T4 Twin Scroll (Internal WG) #12741008001
- 1.05 A/R T4 Twin Scroll (External WG) #12741019002
- 1.45 A/R T4 Twin Scroll (External WG) #12741008003
If you have questions about this product or its installation, contact us.
SKU
EFR-8474
WEIGHT
20.000000
BRAND
BorgWarner
Universal Installation Parts

Full-Race Billet Vacuum / Boost Reference Manifold Block

10mm M10 Inconel Turbo Stud Hardware Kit T3 T4 Turbos

Silicone 4" 45 Degree Intake Elbow / Coupler

T4 Open Turbine Flange

Full-Race T4 Divided 5 Layer Inconel Gasket

Large GT/GTX Oil Drain Flange

3.0" 3-Bolt Exhaust Flange for Downpipe and Exhaust Connections

3" V-Band Flanges

T4 Divided Turbine Flange

4 Bolt Downpipe Turbine Flange For GT, GTX and T3/T4 Garrett Turbos

Full-Race 304 Stainless Steel 3" V-Band Flange Kit

T3 T4 Oil Feed Flange

2.5" Silicone Hump Hose

4" V-band Flange Kit

Full-Race Billet Medium GT Oil Drain Flange (1/2" NPT)

Full-Race 304 Stainless Steel 4" V-band Flanges

T3 Open Turbine Flange

2.5" 45 Degree Coupler Extra Long
similar products

3 Port Boost Control Solenoid (BCS) Fittings and Breather Filter

TiAL MVS 38mm External Wastegate

BorgWarner Airwerks S252SX-E Turbo

92-01 Civic Integra EG EK DC ProStreet Traction Bar

CSF 2003-2007 Evo 7-9 4G63 / 1992-2000 Civic Half-Size Radiator w Shroud 12" SPAL Fan

62mm Precision 6266 Gen2 CEA Turbo

Injector Dynamics ID2600 Fuel Injectors

Stainless External Wastegate DIY Dumptube Kit

Injector Dynamics ID1700X Injectors

Injector Dynamics ID1050X Injectors

Hasport Motor Left Hand Engine Mount DCLH 94-01 Integra, EG Civic, Del Sol

92-01 Civic Integra EG / EK / DC ProAm Traction Bar
For SHOP OWNERs
& KIT BUILDERs
Full-Race Motorsports is the most
trusted name in turbocharging.