IWG75 BW B2 Single/Twin scroll 14 PSI

IWG75 BW B2 Single/Twin scroll 14 PSI

Turbosmart Internal Wastegate Actuators are engineered to deliver maximum boost response and precise control for factory frame and performance turbocharger systems. The IWG75 and GenV Twin Port ranges improve boost control, spool response, and consistency across the entire RPM range compared to OEM actuators.

This improved performance is achieved through an increased working ratio, created by a larger diaphragm surface area and revised spring design. This provides greater leverage against boost pressure and exhaust backpressure while maintaining fast, stable actuator response.

Running factory base pressure delivers earlier peak boost, a broader torque curve, and improved boost retention into higher RPM. Higher base pressure setups can further enhance performance, though ECU tuning and recalibration may be required.

⚙️ Available Options

EFR Single Port (14 PSI)

• B1 Single Scroll – TS-0620-1142
• B1 Twin Scroll – TS-0620-2142
• B2 Dual Scroll – TS-0620-3142

GenV Twin Port Range

• GenV Twin Port (Standard Cap) – TS-0620-4012
• GenV Twin Port (Position Sensor Cap) – TS-0620-4014

🔁 Twin Port Technology Benefits

Twin Port actuators apply boost pressure to both sides of the diaphragm, enabling advanced control strategies including:

• Dual-stage boost targeting (low/high boost modes)
• Improved boost stability and transient response
• Ability to run softer base springs for better response
• Expanded tuning window across all operating conditions

✅  IWG75 BW B2 Single/Twin scroll 14 PSI Features

• Proprietary Silicon Nomex Diaphragm
• Optional Spring Range: 3 PSI – 26 PSI
• High-Grade Billet Aluminium Construction
• Stainless Steel Rods & Clevis
• Turbosmart Locking Collar System
• Hard-Chromed Rod & Nitride Guide (GenV range)
• Swivel Joint System for Linear Actuation
• 1/8” NPT Reference Ports (GenV cap)

📌 Fitment

• Designed for BorgWarner EFR series turbochargers
• Compatible with B1 & B2 single and twin-scroll configurations
• GenV Twin Port suits all EFR platforms (including sensor-cap variant)