Sydney Performance & Parts

PSG40CG Pneumatic StraightGate40 Compressed Gas 7psi Black

PSG40CG Pneumatic StraightGate40 Compressed Gas 7psi Black

SKU: TS-0563-1242

AUD 818.99

In stock

Brand: Turbosmart

Turbosmart PSG40CG StraightGate40 40mm Compressed Gas External Wastegate – 7 PSI – TS-0563-1242

Product Description

Upgrade your turbocharger boost-control system with the Turbosmart TS-0563-1242 PSG40CG Compressed Gas StraightGate40 External Wastegate, a high-performance wastegate designed for demanding turbocharged engine and motorsport applications. Featuring a 40mm zero-offset butterfly-style valve and a specialised diaphragm actuator, this external wastegate is engineered for use with compatible CO₂ and compressed-air boost-control systems.

Developed for performance enthusiasts, engine builders and turbocharger specialists, the Turbosmart StraightGate40 provides a dedicated solution for applications requiring effective exhaust bypass flow and advanced boost management. Its compressed-gas design is specifically developed for control strategies that use an external pressure source to influence wastegate opening and regulate turbocharger boost.

With a 7 PSI base spring configuration, durable stainless steel construction and a specialised high-pressure diaphragm, the PSG40CG offers a performance-oriented option for compatible turbocharger systems.

Whether you are upgrading a street performance vehicle, building a competition engine or developing a custom forced-induction setup, the Turbosmart StraightGate40 delivers a specialised external wastegate solution for compressed-gas boost control.

Compressed-Gas Boost-Control Technology

The Turbosmart PSG40CG is designed specifically for compressed-gas boost-control systems using CO₂ or compressed air. Unlike conventional pneumatic wastegates that rely solely on a traditional boost-reference arrangement, this model uses a diaphragm actuator developed to accommodate the pressure differentials associated with compressed-gas control.

This design supports compatible fill-and-spill boost-control strategies, where pressure is regulated to influence the wastegate's opening position. When correctly configured, the system provides tuners with additional flexibility when managing boost pressure and turbocharger operation.

The wastegate is supplied without the integrated solenoid cap featured on the corresponding integrated-solenoid model. A compatible external boost-control arrangement must therefore be selected and configured for the intended application.

High-Flow 40mm StraightGate Valve

At the centre of the StraightGate40 is a 40mm zero-offset butterfly-style valve engineered to provide effective exhaust bypass flow. Unlike conventional poppet-style wastegates, which regulate flow through a valve seat, the StraightGate uses a centrally pivoting butterfly valve to control exhaust gases passing through the wastegate.

The zero-offset configuration allows exhaust pressure to act across both sides of the valve, helping balance the forces acting on the valve and supporting controlled operation across its working range.

This design is intended to provide a progressive relationship between valve position and exhaust flow, helping deliver predictable wastegate control when correctly matched to the turbocharger system.

The 40mm valve size provides a compact external wastegate option for applications where the required exhaust bypass capacity is suited to this configuration. Wastegate selection should take into account engine displacement, turbocharger characteristics, exhaust manifold design and the intended operating range.

7 PSI Base Spring Configuration

The Turbosmart TS-0563-1242 features a 7 PSI base spring configuration, providing a defined starting point when selecting the wastegate for your turbocharger and boost-control requirements.

Base spring pressure influences the wastegate's opening behaviour, while final boost pressure depends on the complete control system, pressure applied to the actuator, exhaust backpressure and engine configuration.

The 7 PSI specification does not represent the maximum boost pressure achievable by the complete system. Any increase in boost must remain within the safe operating limits of the engine, turbocharger, fuel system and supporting components.

The wastegate also supports spring configuration changes using compatible Turbosmart spring combinations, allowing the setup to be matched to the intended application in accordance with the manufacturer's instructions.

Specialised Diaphragm for CO₂ and Compressed Air

The PSG40CG incorporates a high-pressure diaphragm designed for the demands of CO₂ and compressed-air boost-control systems. Its specialised construction supports the pressure differentials associated with fill-and-spill control strategies.

This makes the StraightGate40 suitable for compatible performance turbocharger installations where compressed-gas actuation is preferred over a conventional boost-reference arrangement.

Correct pressure regulation, suitable plumbing and an appropriately configured boost controller are essential to achieve reliable operation. All fittings and pressure connections should be selected to meet the requirements of the intended system.

Durable Construction for Performance Applications

Turbocharger wastegates operate in demanding environments exposed to high exhaust temperatures, vibration and repeated mechanical movement. The Turbosmart StraightGate40 incorporates performance-oriented materials designed for these conditions.

Key construction features include a stainless steel butterfly valve and shaft, a stainless steel main body, heat-treated stainless steel V-band clamps, an anodised aluminium bracket and actuator assembly, and stainless steel linkages and control arm components.

These materials are selected to support durability and reliable mechanical operation in compatible performance applications.

Correct installation, adequate thermal clearance and routine inspection remain important for maintaining reliable wastegate operation.

Designed for External Wastegate Applications

The Turbosmart PSG40CG is intended for turbocharger systems that do not have an internal wastegate. It provides an external exhaust bypass arrangement that can be incorporated into a compatible exhaust manifold or turbine-side exhaust system.

Depending on the engine and turbocharger configuration, installation may require custom manifold fabrication, suitable mounting provisions and correctly sized exhaust plumbing.

The wastegate should be selected according to the engine's exhaust-flow requirements and the turbocharger's operating characteristics. Correct sizing and installation are essential for effective boost control.

Ideal for Street Performance and Motorsport Builds

The Turbosmart StraightGate40 is suited to performance-focused applications where controlled exhaust bypass and compressed-gas boost management are priorities.

It is a practical consideration for professional engine builders, turbocharger specialists and motorsport enthusiasts developing custom forced-induction systems.

Whether you are building a modified road car, upgrading a track vehicle or assembling a competition engine, the PSG40CG offers a dedicated external wastegate solution for compatible CO₂ and compressed-air boost-control arrangements.

Its compact 40mm valve configuration makes it particularly important to evaluate exhaust flow and turbocharger requirements before selecting the component.

Key Features and Benefits

  • Genuine Turbosmart component: Manufacturer part number TS-0563-1242.

  • PSG40CG Compressed Gas StraightGate40: Performance external wastegate.

  • 40mm butterfly-style valve: Designed for effective exhaust bypass flow.

  • Zero-offset valve design: Supports balanced valve forces and controlled operation.

  • 7 PSI base spring: Defined base pressure configuration.

  • CO₂ and compressed-air compatibility: Designed for suitable compressed-gas boost-control systems.

  • Specialised high-pressure diaphragm: Developed for compressed-gas control strategies.

  • External solenoid configuration: Allows use with a compatible separately configured boost-control system.

  • Durable construction: Stainless steel body, valve and shaft with robust mounting hardware.

  • Adjustable spring configuration: Compatible spring combinations allow setup according to the manufacturer's recommendations.

  • Performance-focused design: Suitable for compatible turbocharger and motorsport applications.

Product Specifications

  • Brand: Turbosmart

  • Part Number: TS-0563-1242

  • Product Name: PSG40CG Compressed Gas StraightGate40

  • Product Type: External wastegate

  • Valve Diameter: 40mm (1.57 inches)

  • Base Spring Pressure: 7 PSI

  • Actuation System: Compressed-gas diaphragm

  • Compatible Control Media: CO₂ or compressed air

  • Valve Design: Zero-offset butterfly style

  • Published Flow Rate: Approximately 217.4 CFM / 6.16m³ per minute

  • Main Body Material: Stainless steel

  • Butterfly Valve and Shaft: Stainless steel

  • V-Band Clamps: Heat-treated stainless steel

  • Bracket and Actuator Components: Anodised aluminium

  • Linkages and Control Arm: Stainless steel

  • Integrated Solenoids: Not included in this model

  • Primary Application: External turbocharger wastegate and compressed-gas boost control

  • Intended Use: Performance automotive and motorsport applications

Installation and Compatibility

The Turbosmart TS-0563-1242 is designed for turbocharger systems without an internal wastegate. Depending on your exhaust manifold and turbocharger arrangement, installation may require fabrication or modification to provide the correct mounting position and exhaust plumbing.

Use high-quality fittings to maintain reliable pressure sealing. Allow adequate cool airflow around the upper diaphragm housing and maintain at least 100mm clearance between the top diaphragm housing and significant heat sources. Do not wrap the wastegate body in exhaust wrap.

A compatible external compressed-gas boost-control arrangement must be installed and configured according to the manufacturer's instructions. Professional installation and boost calibration are strongly recommended.

During setup, check the engine's air-fuel ratio and monitor boost pressure carefully. Boost should be configured using suitable testing equipment and remain within the safe operating limits of the engine, turbocharger, fuel system and supporting components.

Why Choose Turbosmart?

Turbosmart is a recognised manufacturer of turbocharger, wastegate and boost-control components for street performance, competition and motorsport applications. Its StraightGate range is developed for specialised installations where exhaust-flow management and precise boost control are important.

The PSG40CG Compressed Gas StraightGate40 combines a 40mm butterfly valve with a specialised compressed-gas diaphragm and durable construction, providing a dedicated solution for compatible CO₂ and compressed-air boost-control systems.

Choose the Turbosmart TS-0563-1242 StraightGate40 for your turbocharger project when you require a compact external wastegate designed for compressed-gas boost management.

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