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Product Details
The Turbosmart GenV CompGate40 HP 40mm External Wastegate (TS-0552-1312) is a high-performance boost control solution specifically engineered for turbocharged applications requiring elevated mechanical base boost pressures. Featuring a 40mm wastegate valve, 35 PSI preinstalled spring configuration, high-pressure actuator, and black finish, the CompGate40 HP combines Turbosmart's advanced fifth-generation wastegate technology with the strength and reliability needed for demanding motorsport applications.
Unlike conventional external wastegates designed around lower spring pressures, the GenV CompGate40 HP (High Pressure) is built to support mechanical base boost pressures of up to 50 PSI with the appropriate optional spring configuration. This makes it particularly suitable for high-boost turbocharger systems where maintaining precise control under elevated exhaust backpressure is essential.
External wastegates regulate turbocharger boost pressure by diverting a portion of the exhaust gas away from the turbine. The CompGate40 HP uses a precision valve and spring-loaded actuator to control this exhaust bypass flow, helping maintain the desired boost pressure throughout the engine's operating range.
Turbosmart developed the GenV wastegate platform using computational fluid dynamics (CFD) and extensive flow testing to optimize exhaust bypass efficiency, thermal performance, and long-term durability.
The TS-0552-1312 incorporates a high-temperature 347 stainless steel body, Nitronic 60 valve guide, and 17-7 PH stainless steel springs, providing exceptional resistance to heat, wear, and repeated operating cycles.
Its modular actuator design features Turbosmart's locking collar system, adjustable actuator housing orientation, and 1/8-inch NPT pressure reference ports. These features allow flexible installation, convenient servicing, and compatibility with properly configured boost control systems.
The wastegate also supports optional liquid actuator cooling for applications exposed to extreme exhaust temperatures.
Supplied with a 35 PSI spring configuration preinstalled, the TS-0552-1312 is intended for high-boost applications rather than low-pressure turbocharger systems.
Whether building a high-horsepower Honda K20/K24, developing a competition B-Series turbo engine, or assembling a dedicated drag racing or roll racing setup, the Turbosmart GenV CompGate40 HP provides the high-pressure boost control capabilities required for serious forced-induction performance.
Features
Genuine Turbosmart GenV CompGate40 HP: Fifth-generation high-pressure external wastegate designed for motorsport applications.
40mm Wastegate Valve: Provides efficient exhaust gas bypass control.
35 PSI Preinstalled Spring Configuration: Establishes a nominal mechanical base boost pressure of approximately 35 PSI.
High-Pressure Actuator: Supports mechanical base spring pressures up to 50 PSI with the appropriate optional components.
Black Actuator Finish: Provides a clean, performance-oriented appearance.
347 Stainless Steel Wastegate Body: Designed to withstand extreme exhaust temperatures and repeated thermal cycling.
Nitronic 60 Valve Guide: Offers excellent resistance to wear and galling.
17-7 PH Stainless Steel Springs: Engineered for high-strength, fatigue-resistant operation.
CFD-Optimized Exhaust Flow: Improves exhaust bypass efficiency and boost control performance.
Bench-Validated Flow Design: Developed through Turbosmart's testing and engineering processes.
Improved Thermal Management: Helps maintain reliable operation in demanding turbocharger environments.
Modular GenV Actuator: Supports servicing and compatible spring configuration changes.
Locking Collar System: Allows access to the actuator spring assembly using the appropriate service tool.
360-Degree Clockable Actuator Housing: Provides flexible pressure reference hose routing.
1/8-Inch NPT Pressure Reference Ports: Compatible with appropriate pneumatic boost control fittings.
V-Band Inlet and Outlet Connections: Provide secure mounting and convenient wastegate removal.
Strap-Style V-Band Clamps: Designed for secure connections under demanding operating conditions.
Optional Liquid Actuator Cooling: Supports additional thermal management when required.
Electronic Boost Controller Compatible: Suitable for properly configured high-pressure boost control systems.
Manual Boost Controller Compatible: Supports compatible pneumatic boost control arrangements.
Gen4 CompGate40 Mounting Compatibility: Designed to retain the corresponding previous-generation mounting orientation.
Universal Motorsport Application: Suitable for custom high-boost turbocharger systems.
Turbosmart Part Number TS-0552-1312: Ensures accurate product identification.
Popular Performance Applications
The Turbosmart TS-0552-1312 is a universal 40mm high-pressure external wastegate intended for custom turbocharger systems requiring elevated mechanical base boost pressure.
Popular performance applications include:
Honda Civic K20 Turbo Builds: High-boost K20A, K20A2, K20Z1, and K20Z3 turbocharger applications.
Honda Civic K24 Turbo Builds: Built K24A, K24A2, and other compatible K24 high-horsepower turbo systems.
Acura RSX Type-S Turbo Builds: Competition K20 turbocharger configurations.
Acura TSX K24 Turbo Applications: High-output K24 forced-induction systems.
Honda Accord K-Series Turbo Builds: Custom high-boost K-Series turbocharger installations.
Honda S2000 Turbo Builds: Built F20C and F22C turbocharged engines.
Acura Integra Turbo Builds: Competition B-Series and K-Series forced-induction applications.
Honda Prelude Turbo Builds: High-boost H-Series and K-Series turbocharger configurations.
K20/K24 Frankenstein Turbo Builds: High-horsepower competition engine combinations.
B16, B18, and B20 Turbo Builds: Built B-Series engines utilizing compatible external wastegate systems.
Subaru WRX and STI Turbo Builds: High-boost aftermarket turbocharger applications.
Mitsubishi Evolution Turbo Builds: Competition turbocharger configurations.
Nissan SR20DET and RB-Series Turbo Builds: High-pressure forced-induction systems.
Toyota 1JZ and 2JZ Turbo Builds: High-horsepower turbocharger installations.
Drag Racing Applications: Designed for demanding high-boost competition systems.
Roll Racing Applications: Suitable for properly engineered high-output turbocharger setups.
Dedicated Motorsport Vehicles: Supports applications requiring elevated mechanical base boost pressure.
Important: This is a universal performance component, not a vehicle-specific direct-fit replacement. Fitment depends on the turbocharger manifold, wastegate mounting connections, installation clearance, and boost control configuration.
The 35 PSI mechanical base pressure is not appropriate for every turbocharged engine. Verify that the engine, fuel system, turbocharger, and tuning strategy are designed for the intended boost pressure before installation.
Additional Information
- Manufacturer: Turbosmart
- Part Number: TS-0552-1312
- Product Series: GenV CompGate40 HP
- Product Type: High-Pressure External Turbocharger Wastegate
- Wastegate Valve Diameter: 40mm
- Preinstalled Spring Pressure: 35 PSI / Approximately 2.41 Bar
- Maximum Supported Base Spring Pressure: Up to 50 PSI with Optional Spring Configuration
- Finish: Black
- Wastegate Body Material: High-Temperature 347 Stainless Steel
- Valve Guide Material: Nitronic 60
- Spring Material: 17-7 PH Stainless Steel
- Actuator Configuration: High Pressure / Modular GenV
- Pressure Reference Ports: 1/8-Inch NPT
- Mounting Configuration: V-Band Inlet and Outlet
- Optional Actuator Cooling: Liquid Cooling Compatible
- Vehicle Fitment: Universal Custom Turbocharger Applications
- UPC: 9329677022117
High-Pressure 40mm External Wastegate Design
The GenV CompGate40 HP features a 40mm wastegate valve engineered to regulate exhaust gas flow around the turbocharger turbine.
When the wastegate opens, exhaust gas is redirected away from the turbine, helping control turbine speed and boost pressure.
The CompGate40 HP combines this 40mm valve design with a specialized high-pressure actuator capable of supporting substantially higher spring pressures than typical low-boost wastegate configurations.
This makes it especially useful for competition turbocharger systems operating at elevated boost levels.
35 PSI Mechanical Base Boost
The TS-0552-1312 comes equipped with a 35 PSI spring configuration installed.
This establishes a nominal mechanical base pressure of approximately 35 PSI under suitable operating conditions.
The factory configuration uses a combination of 10 PSI and 25 PSI springs to achieve the nominal 35 PSI rating.
Actual boost pressure may vary depending on exhaust backpressure, wastegate placement, turbocharger characteristics, and pressure reference plumbing.
Important: A boost controller generally cannot reliably reduce boost pressure below the effective mechanical base pressure of the installed springs.
Up to 50 PSI Base Spring Pressure Capability
The GenV CompGate40 HP actuator supports optional high-pressure spring configurations up to 50 PSI.
This allows the wastegate to be configured for demanding motorsport applications requiring elevated mechanical boost pressure.
The optional 40 PSI spring is available separately.
Only Turbosmart-approved spring combinations should be used.
The ability to support a 50 PSI mechanical base pressure does not mean that every engine or turbocharger system can safely operate at that pressure.
High-Temperature 347 Stainless Steel Body
The GenV CompGate40 HP features a wastegate body manufactured from 347 stainless steel.
This material is well suited for high-temperature exhaust environments and repeated thermal cycling.
Its durability makes it appropriate for demanding turbocharger installations where the wastegate is exposed to substantial heat.
Nitronic 60 Valve Guide
The CompGate40 HP incorporates a Nitronic 60 valve guide.
Nitronic 60 is known for its resistance to galling and wear, making it suitable for components exposed to repeated movement and elevated temperatures.
The valve guide helps maintain proper wastegate valve alignment and consistent operation.
17-7 PH Stainless Steel Springs
The CompGate40 HP utilizes 17-7 PH stainless steel actuator springs.
These springs provide the mechanical closing force required to maintain the selected base boost pressure.
The material offers strength and fatigue resistance for demanding high-pressure applications.
CFD-Optimized Exhaust Flow
Turbosmart developed the GenV wastegate platform using computational fluid dynamics and physical flow testing.
The optimized internal geometry promotes efficient exhaust bypass flow.
Effective exhaust bypass is essential for stable boost regulation, particularly in high-horsepower applications producing substantial exhaust gas volume.
Modular GenV Actuator
The CompGate40 HP incorporates Turbosmart's modular GenV actuator construction.
This design allows compatible spring configurations to be changed and serviced without replacing the complete wastegate.
The locking collar secures the actuator assembly while providing access to the internal spring system using the appropriate service tool.
360-Degree Clockable Actuator
The GenV CompGate40 HP features a clockable actuator housing.
The actuator can be rotated to improve access to the pressure reference ports and simplify hose routing.
This is particularly beneficial in custom turbocharger installations with limited engine bay clearance.
1/8-Inch NPT Pressure Reference Ports
The wastegate incorporates 1/8-inch NPT pressure reference ports.
These ports allow connection to a compatible boost pressure source or boost control system.
The upper and lower actuator chambers can be connected according to the selected control strategy.
Unused ports must be sealed with suitable plugs.
Optional Liquid Actuator Cooling
The GenV CompGate40 HP supports optional liquid actuator cooling.
This feature can help manage actuator temperatures in installations exposed to extreme exhaust heat.
Liquid cooling may be beneficial in applications involving sustained high engine loads or limited airflow around the wastegate.
Cooling components and plumbing must be installed according to Turbosmart's recommendations.
V-Band Mounting Connections
The CompGate40 HP uses V-band inlet and outlet connections.
V-band clamps provide secure mounting while allowing convenient removal for servicing.
Compatible weld flanges allow integration with custom turbocharger manifolds and exhaust dump tubes.
Electronic Boost Controller Compatibility
The CompGate40 HP can be used with compatible electronic boost controllers.
These systems regulate pressure acting on the wastegate actuator to control boost above the mechanical base setting.
High-pressure applications require appropriate boost control hardware and careful calibration.
Incorrect pressure plumbing or control settings can cause excessive boost pressure and engine damage.
GenV CompGate40 HP vs. Standard CompGate40
The GenV CompGate40 HP differs from the standard CompGate40 primarily in its high-pressure actuator and spring configuration.
GenV CompGate40 HP – TS-0552-1312
40mm wastegate valve.
35 PSI preinstalled spring configuration.
High-pressure actuator design.
Supports optional base spring configurations up to 50 PSI.
Intended for demanding high-boost motorsport applications.
Standard GenV CompGate40
40mm wastegate valve.
Lower factory-installed spring pressure options.
Standard actuator configuration.
Suitable for a broader range of conventional turbocharger applications.
Both versions benefit from Turbosmart's GenV wastegate architecture, but the HP model is specifically intended for applications requiring elevated mechanical base pressure.
Wastegate Placement and Boost Creep
Proper wastegate placement is essential for stable boost control.
The wastegate should be positioned so exhaust gas can flow efficiently from the exhaust manifold into the wastegate inlet.
Poor placement, restrictive outlet plumbing, or inadequate wastegate flow capacity can contribute to boost creep.
Boost creep occurs when boost pressure continues increasing despite the wastegate being fully open.
Correct wastegate sizing and exhaust manifold design are essential for reliable operation.
Common Reasons for Replacement
Upgrading to a High-Pressure Wastegate: Supports elevated mechanical base boost requirements.
High-Horsepower Turbocharger Builds: Provides boost control for demanding competition applications.
Increasing Mechanical Base Boost Pressure: Offers a 35 PSI factory spring configuration.
Upgrading an Existing External Wastegate: Provides modern GenV boost control technology.
Inconsistent Boost Pressure: Replaces an existing wastegate that has been diagnosed as faulty.
Damaged Wastegate Components: Provides a complete replacement when servicing is not practical.
Turbocharger Upgrades: Supports revised exhaust bypass and boost control requirements.
Custom Turbo Manifold Installation: Provides a 40mm external wastegate for compatible mounting systems.
Drag Racing Applications: Suitable for properly engineered high-boost competition vehicles.
Roll Racing Applications: Supports high-output forced-induction systems.
Turbo System Rebuilds: Provides a new wastegate assembly for custom turbocharger installations.
Motorsport Performance Upgrades: Supports advanced boost management strategies.
Installation Notes
Verify Wastegate Sizing: Confirm that a 40mm external wastegate provides sufficient exhaust bypass capacity for the application.
Confirm Boost Pressure Requirements: Verify that the engine and turbocharger system are designed for a 35 PSI mechanical base pressure.
Review Turbosmart Instructions: Follow the current GenV CompGate40 HP installation documentation.
Allow the Engine to Cool: Never service turbocharger or exhaust components while hot.
Inspect the Turbo Manifold: Confirm that the manifold supports the required wastegate mounting arrangement.
Plan Wastegate Placement: Position the wastegate for efficient exhaust gas bypass flow.
Prepare the Weld Flanges: Ensure proper alignment before fabrication.
Fabricate the Wastegate Inlet: Use suitable exhaust tubing and welding procedures.
Install the Outlet Plumbing: Route the dump tube or recirculation piping without excessive restriction.
Verify Engine Bay Clearance: Maintain suitable clearance from wiring, hoses, and heat-sensitive components.
Install Heat Protection: Use appropriate shielding where necessary.
Install the Valve Seat: Follow Turbosmart's specified installation procedure.
Position the Wastegate: Align the assembly with the inlet and outlet connections.
Secure the V-Band Clamps: Follow the manufacturer's recommended installation procedure.
Verify Spring Configuration: Confirm that the 35 PSI spring arrangement matches the intended application.
Select Approved Spring Combinations: Use only Turbosmart-recommended spring configurations.
Clock the Actuator Housing: Position the pressure reference ports for convenient hose routing.
Install Pressure Reference Fittings: Use compatible 1/8-inch NPT fittings.
Seal Unused Ports: Install appropriate blanking plugs where required.
Connect the Boost Reference Hoses: Use suitable pressure-rated hoses.
Verify Boost Controller Plumbing: Follow the correct diagram for the selected boost control system.
Inspect All Connections: Check pressure fittings, hoses, and mounting hardware.
Perform a Controlled Pressure Test: Verify actuator response using regulated pressure.
Check for Pressure Leaks: Inspect the actuator and pressure reference plumbing.
Verify Engine Management Calibration: Confirm that the ECU is configured for the intended boost pressure.
Perform Controlled Initial Testing: Monitor boost pressure carefully during initial operation.
Check for Boost Creep: Verify that boost pressure remains controlled throughout the intended operating range.
Inspect Exhaust Connections: Check for leaks and excessive heat exposure.
Reinspect After Heat Cycling: Verify mounting hardware and pressure connections after initial operation.
Important: The TS-0552-1312 is supplied with a 35 PSI mechanical base pressure configuration. This is a substantial boost level that requires an appropriately engineered engine, turbocharger, fuel system, and tuning strategy. Professional installation and calibration are strongly recommended.
What's Included
(1) Turbosmart GenV CompGate40 HP 40mm External Wastegate – Black (TS-0552-1312)
(1) Preinstalled 35 PSI Spring Configuration (10 PSI + 25 PSI Springs)
(1) Wastegate Valve Seat
(1) Stainless Steel Inlet Weld Flange
(1) Stainless Steel Outlet Weld Flange
(1) Inlet V-Band Clamp
(1) Outlet V-Band Clamp
(1) Locking Collar Service Tool
Pressure Reference Fitting Kit
Blanking Plugs
Note: The optional 40 PSI spring for higher mechanical base pressure configurations is sold separately. Turbocharger manifolds, custom exhaust piping, boost controllers, and pressure reference hoses are not included.
Take control of your high-boost turbocharger system with the Turbosmart GenV CompGate40 HP 40mm External Wastegate – 35 PSI, Black (TS-0552-1312).
Featuring a 40mm wastegate valve, high-pressure GenV actuator, 35 PSI preinstalled spring configuration, optional 50 PSI base pressure capability, 347 stainless steel body, Nitronic 60 valve guide, and modular locking collar design, the CompGate40 HP delivers the strength and precision required for demanding forced-induction applications.
Whether building a high-horsepower Honda K20/K24, upgrading a competition B-Series turbocharger system, or assembling a dedicated drag racing or roll racing vehicle, the Turbosmart TS-0552-1312 GenV CompGate40 HP provides motorsport-proven engineering and dependable high-pressure boost control.
| Part Number: | TS-0552-1312 |
| Brand: | Turbosmart |
| Color: | Black |
| Spring Pressure: | 35 psi |
| Wastegate Size: | 40mm |
| CARB Approved: | No |
Not legal for sale or use in California on any pollution controlled motor vehicles. See http://www.semasan.com/emissions for state by state emissions requirements.
There is a 5% cancellation fee if you order this product and want to ship it to the state of California.
WARNING: This product may contain chemicals known to the State of California to cause cancer or birth defects. www.P65Warnings.ca.gov.
Vehicle Fitment
This part does not have vehicle specific fitment. Please contact us if you need assistance.
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