BorgWarner AirWerks T4 S475SX3 aka 10083 75mm S400SX3 (177101)

BorgWarner’s 75mm S400SX3 turbocharger is one of the most potent 75mm large-frame turbos available. This design pairs a 100.17mm OD FMW billet compressor wheel with a high flowing 83mm S400SX3 turbine wheel.  This combination provides huge exhaust flow energy without restriction. Bolt-on for many twinscroll T4 manifolds and 4″ downpipes.  

Compressor Specifications

• Compressor Wheel Exducer: 100.17mm
• Compressor Wheel Inducer: 75mm
• Max Flow Rate: 104 lbs/min
• Max Recommended Turbo Speed: 105079 RPM
• Compressor Housing Connections:
  • Inlet: 5.0″ Hose Coupler
  • Outlet: 3.5″ V-Band

Turbine Specifications

• Turbine Wheel Exducer: 74.29mm
• Turbine Wheel Inducer: 83mm
• Housing Size and A/R ratio: S475SX3 10083 is available in four (4) different turbine housing configurations:
  • 0.90 A/R Divided T4 Twin Scroll Inlet
  • 1.00 A/R Divided T4 Twin Scroll Inlet
  • 1.10 A/R Divided T4 Twin Scroll Inlet
  • 1.25 A/R Divided T4 Twin Scroll Inlet

Turbine Outlet: Half Marmon Flange

BorgWarner’s S400SX3 75mm Turbo Features:

• 5.0″ inlet / 3.5″ outlet compressor housing
• All-new severe duty 360 degree thrust bearing
• Interchangeable with existing turbine housings
• 83mm turbine wheel

The compressor stage starts with a ported shroud housing, including integrated velocity stack. Compressor wheel is BorgWarner’s “FMW” forged-milled-wheel (AKA forged-billet) and uses the latest generation blade aero to reach 100 lb/min max compressor flow. This is a journal bearing oil cooled only turbocharger ideally suited to competitive drag racing.

Additional Information:

• Max warm oil pressure: 5 bar (73.5psi)
• Max cold oil pressure: 8 bar (118psi)
• When starting a fresh engine build or in extremely cold climates – oil pressure must reach 0.5bar (7.2psi) within 4 seconds maximum.
• Do not load the engine with full boost and WOT until full operating oil pressure is present
• Do not load the engine with full boost and WOT if any boost leaks are present (this can result in turbocharger overspeed)

Airwerks® Series Turbochargers

Simple. Scalable. Strong.  Airwerks turbochargers are designed for the competitive motorsports market as well as drivers retrofitting a naturally aspirated engine or looking for a little more performance from a factory turbocharged car. Engineered specifically for drag racing, pulling, and extreme applications, AirWerks turbochargers have earned a reputation as robust, brute-force induction systems. Looking for a no-frills replacement? Want to upgrade your turbocharger? Working with limited space? BorgWarner’s AirWerks turbochargers are the perfect go-to product for many applications.  With a twin hydrodynamic journal bearing design, AirWerks turbochargers feature an effective high-pressure ratio compressor stage, extended-tip technology and a high-efficiency turbine stage. The configuration provides ultra-fast response and more than 70 PSI of boost.