BorgWarner 313683 S1BG AirWerks Turbocharger T25 .61 A/R 39mm Inducer

The BorgWarner 313683 is an S1BG series AirWerks turbocharger designed for competitive motorsports applications, performance upgrades, and naturally aspirated engine conversions. This universal-fit turbo is engineered for drag racing, pulling, and road racing, delivering robust forced induction performance with a power rating of 120-320 horsepower.

Key Specifications:

• Compressor wheel inducer: 39mm (1.55 inches)
• Compressor wheel outlet: 52.91mm (2.08 inches)
• Turbine wheel diameter: 53mm with 45.73mm exducer
• Turbine housing: T25 6-bolt manifold flange with 0.61 A/R
• Maximum boost pressure: Over 70 PSI
• Compressor housing: 60mm intake / 50mm pressure side

Performance Features:

• Twin hydrodynamic journal bearing design for reliability and longevity
• Integrated internal wastegate assembly
• Adjustable compressor and turbine housing orientation for flexible installation
• High-pressure ratio compressor stage with extended-tip technology
• High-efficiency turbine stage for ultra-fast throttle response
• Oil-lubricated bearing housing

Part of BorgWarner's AirWerks aftermarket turbocharger line, the S1BG combines proven OEM components optimized for tuning and motorsports applications. The compact design makes it ideal for space-constrained engine bays, while the adjustable housing orientations simplify installation and plumbing. The T25 flange provides broad compatibility with aftermarket exhaust manifolds.