Borg Warner EFR 8374 Turbo (475-750 HP)

BW EFR 8374 turbo. (475-750 HP Rating)

"The Borg Warner EFR 8374 is the 6th size (#6 of 7) turbocharger in the very efficient high performance EFR series. This is one of the most interesting turbos in the line-up with a compressor wheel size similar to the GT3582R, but on steroids with a 62.6mm inducer, 83mm OD exducer. Produces 79 lb/min of max flow that is normally unheard of for a wheel it's size. Supports 750 HP & is truly an outstanding turbo for rapid spool, big HP & high pressure ratios of 45+ psi. The 8374 is the perfect EFR for road race, time attack, street & drag racing when unsurpassed response & yield are required.

BorgWarner EFR (Engineered For Racing) Series turbos are purpose built units for the performance market & meet the needs of the next generation turbo consumer. Revolutionary from the ground up, each incorporates a long list of features never before seen in a single package. All old technology has been thrown away completely & the result is a whole new breed of turbo, packed full of cutting edge advancements. Great emphases has been put towards a more compact design, making each EFR the ideal choice for applications with limited space available. Outstanding ease of installation & budget friendly (thanks to their 'total package' platform) every EFR eliminates the need to purchase/fabricate/install a separate blow of valve & related flanges/tubing due to their already integrated BOV. The internally wastegated units present another large advantage in savings & install simplicity by eliminating the need for an external wastegate(s), related fab work & otherwise cumbersome materials.

Compressor Features
* Low inertia, Forged Billet Aluminum Compressor Wheel w/ Extended Tip Technology (ETT) provides the ultimate in response & extreme durability in high pressure applications.
* Speed sensor mounting provisions
* Built In BOV Included (All EFR compressor housings incorporate an integrated BOV)
* Boost Control Solenoid Included

Compressor Specs
* Compressor Wheel Inducer: 62.6mm
* Compressor Wheel Exducer (OD): 83mm
* Max Flow Rate: 79 lb/min
* Housing: 4" inlet w/ Anti-Surge Ported Shroud, 2.5" hose coupler outlet w/ integrated V-band option

Turbine Features
* Gamma-Ti turbine wheel cuts turbine inertia up to 50%, dramatically improving turbo response & permitting high rotational speeds.
* Solid Stainless Steel Investment Cast thin wall turbine housing for extreme durability, huge weight reductions & lowered thermal inertia. Very smooth internal channels promote peak flow.
* Adjustable Internal wastegate actuator Included (internal wastegated units only)
* Large internal wastegate ports handle the flow requirements of high performance engines. (internal wastegated units only)

Turbine Specs
* Turbine Wheel OD: 74mm
* Available Housing Option #1: T3 Single Scroll Inlet, 3" (92mm OD) V-band downpipe discharge, .83 A/R, w/ Internal Wastegate
* Available Housing Option #2: T4 Divided / Twin Scroll Inlet, 3" (92mm OD) V-band downpipe discharge, .92 A/R w/ Internal Wastegate
* Available Housing Option #3: T4 Divided / Twin Scroll Inlet, 3" (92mm OD) V-band downpipe discharge, 1.05 A/R, Non-Internal wastegate. (for use with external wastegate only)

Center Section
* Dual Row Ceramic Ball Bearing Design (extreme durability & the lowest friction / fastest spooling bearing design produced to date)
* Built-in -4 AN oil control orifice included (no restrictor needed)
* Water-cooled ( water-cooling is recommended but not mandatory)
* Double seals on both turbine and compressor end for extreme durability & resistance to oil seepage

Note: #1 The turbo part number changes based on the turbine housing selected. The following part number(s) apply to this turbo. P/N: 179285 (T3), 179357 (T4 w/ WG), 179393 (T4 Non-WG)

Note #2: ALL of our Borg Warner turbochargers are fully balanced, brand new units from the factory & include BW's 1 year manufacturers warranty."