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Product Details
The Turbosmart GenV CompGate40 40mm External Wastegate – Sleeper Black (TS-0552-1015) is a high-performance turbocharger boost control solution engineered to deliver exceptional exhaust flow, precise boost regulation, and outstanding durability. Featuring a 40mm wastegate valve, 14 PSI preinstalled spring configuration, and exclusive Sleeper Black finish, the GenV CompGate40 combines Turbosmart's motorsport-proven technology with a compact design ideal for demanding street and racing applications.
Designed for turbocharged engines requiring reliable external wastegate control, the CompGate40 regulates boost pressure by diverting excess exhaust gas around the turbocharger turbine. This helps control turbine speed, maintain consistent boost pressure, and reduce the risk of uncontrolled boost increases.
Turbosmart developed the fifth-generation CompGate40 using computational fluid dynamics (CFD) and extensive flow testing to optimize exhaust gas bypass efficiency. The updated design provides improved thermal performance, enhanced fatigue resistance, and greater configuration flexibility compared with previous-generation wastegates.
The TS-0552-1015 Sleeper Edition features a distinctive black-on-black appearance, including black actuator components, locking collar, and pressure reference fittings. This stealth-inspired finish is an excellent choice for enthusiasts seeking a clean, understated engine bay without sacrificing performance.
Manufactured with a high-temperature 347 stainless steel body, Nitronic 60 valve guide, 316 stainless steel valve seat, and 17-7 PH stainless steel springs, the GenV CompGate40 is designed to withstand demanding exhaust temperatures and repeated boost cycles.
Its modular actuator assembly incorporates Turbosmart's unique locking collar system and a clockable actuator housing, allowing flexible pressure reference hose routing and convenient spring servicing.
Additional features include 1/8-inch NPT pressure reference ports, strap-style V-band clamps, optional liquid actuator cooling, and compatibility with an optional wastegate position sensor.
Supplied with a 14 PSI spring configuration installed, the TS-0552-1015 establishes a nominal mechanical base boost pressure of approximately 14 PSI. Additional springs are included to accommodate alternative manufacturer-approved spring combinations.
Whether building a turbocharged Honda K20/K24, upgrading a B-Series forced-induction setup, or assembling a custom high-horsepower turbocharger system, the Turbosmart GenV CompGate40 Sleeper provides reliable boost control, exceptional construction quality, and the performance expected from genuine Turbosmart components.
Features
Genuine Turbosmart GenV CompGate40: Fifth-generation external wastegate engineered for demanding turbocharger applications.
40mm Wastegate Valve: Provides efficient exhaust gas bypass control.
14 PSI Preinstalled Spring: Establishes a nominal mechanical base boost pressure of approximately 14 PSI.
Sleeper Black Finish: Features blacked-out actuator components, locking collar, and pressure reference fittings.
High-Flow Internal Design: CFD-optimized exhaust passage improves bypass efficiency.
347 Stainless Steel Wastegate Body: Designed for durability under high exhaust temperatures.
Nitronic 60 Valve Guide: Provides excellent resistance to wear and galling.
316 Stainless Steel Valve Seat: Offers a durable sealing interface.
17-7 PH Stainless Steel Springs: Designed for consistent operation and fatigue resistance.
Compact Wastegate Construction: Suitable for performance applications with limited engine bay clearance.
Improved Thermal Management: Helps protect internal components during demanding operation.
Modular GenV Actuator: Supports convenient servicing and compatible configuration changes.
Locking Collar Design: Simplifies access to the internal spring assembly.
360-Degree Clockable Actuator: Allows flexible positioning of boost reference connections.
1/8-Inch NPT Reference Ports: Supports compatible boost control fittings and hoses.
V-Band Inlet and Outlet Connections: Provides secure mounting and convenient wastegate removal.
Strap-Style V-Band Clamps: Designed for reliable connections under demanding conditions.
Stainless Steel Weld Flanges Included: Supports custom turbo manifold and exhaust fabrication.
Optional Liquid Actuator Cooling: Provides additional thermal management capability.
Optional Wastegate Position Sensor: Supports advanced boost control monitoring with compatible accessories.
Additional Springs Included: Allows alternative manufacturer-approved mechanical boost pressure configurations.
Electronic Boost Controller Compatible: Suitable for properly configured aftermarket boost management systems.
Manual Boost Controller Compatible: Supports conventional pneumatic boost control systems.
Gen4 CompGate40 Upgrade Compatibility: Retains the corresponding mounting orientation of the previous-generation wastegate.
Universal Performance Application: Suitable for custom turbocharger systems with compatible mounting arrangements.
Turbosmart Part Number TS-0552-1015: Ensures accurate product identification.
Popular Performance Applications
The Turbosmart TS-0552-1015 is a universal 40mm external wastegate intended for custom turbocharger systems requiring efficient exhaust bypass control.
Popular applications include:
Honda Civic K20 Turbo Builds: Custom K20A, K20A2, K20Z1, and K20Z3 turbocharger systems.
Honda Civic K24 Turbo Builds: Compatible K24A, K24A2, and other K24 turbocharger configurations.
Acura RSX Type-S Turbo Builds: Suitable for aftermarket K20 turbo manifolds utilizing compatible wastegate connections.
Acura TSX K24 Turbo Applications: Supports custom forced-induction installations.
Honda Accord K-Series Turbo Builds: Suitable for compatible aftermarket turbocharger systems.
Honda S2000 Turbo Builds: Supports properly engineered F20C and F22C turbocharger applications.
Acura Integra Turbo Builds: Suitable for compatible B-Series and K-Series turbocharger configurations.
Honda Prelude Turbo Builds: Supports compatible H-Series and K-Series forced-induction applications.
K20/K24 Frankenstein Turbo Builds: Suitable for custom turbocharger systems.
B16, B18, and B20 Turbo Builds: Compatible with appropriately designed external wastegate manifolds.
Subaru WRX and STI Turbo Builds: Suitable for compatible aftermarket turbocharger installations.
Mitsubishi Evolution Turbo Builds: Supports custom performance turbocharger configurations.
Nissan SR20DET and RB-Series Turbo Builds: Suitable for compatible forced-induction systems.
Toyota 1JZ and 2JZ Turbo Builds: Supports custom turbocharger installations with appropriate wastegate plumbing.
Drag Racing Applications: Provides dependable boost regulation for properly engineered competition vehicles.
Roll Racing Builds: Supports high-output turbocharger systems.
Custom Motorsport Applications: Suitable for compatible external wastegate installations.
Important: This is a universal performance component, not a vehicle-specific direct-fit replacement. Compatibility depends on the turbo manifold, wastegate mounting arrangement, available clearance, and boost control configuration.
Additional Information
- Manufacturer: Turbosmart
- Part Number: TS-0552-1015
- Product Series: GenV CompGate40 Sleeper
- Product Type: External Turbocharger Wastegate
- Wastegate Valve Diameter: 40mm
- Preinstalled Spring Pressure: 14 PSI / Approximately 0.97 Bar
- Finish: Sleeper Black
- Wastegate Body Material: High-Temperature 347 Stainless Steel
- Valve Guide Material: Nitronic 60
- Valve Seat Material: 316 Stainless Steel
- Spring Material: 17-7 PH Stainless Steel
- Pressure Reference Ports: 1/8-Inch NPT
- Mounting Configuration: V-Band Inlet and Outlet
- Weld Flange Material: Stainless Steel
- Actuator Design: Modular / Clockable
- Optional Actuator Cooling: Liquid Cooling Compatible
- Optional Position Monitoring: Wastegate Position Sensor Compatible
- Vehicle Fitment: Universal Custom Turbocharger Applications
- UPC: 9329677022728
High-Flow 40mm External Wastegate Design
The GenV CompGate40 features a 40mm valve designed to regulate exhaust gas flow around the turbocharger turbine.
When the wastegate opens, a portion of the exhaust gas is redirected away from the turbine, reducing the energy available to accelerate the turbocharger.
This allows the wastegate to regulate boost pressure as engine speed and exhaust flow increase.
The CompGate40's optimized internal geometry promotes efficient exhaust bypass flow while maintaining compact dimensions.
Proper wastegate sizing depends on engine displacement, turbocharger characteristics, exhaust manifold design, and intended boost pressure.
14 PSI Mechanical Base Boost
The TS-0552-1015 is supplied with a 14 PSI spring configuration installed.
This establishes a nominal mechanical base pressure of approximately 14 PSI under suitable operating conditions.
Actual boost pressure may vary depending on exhaust backpressure, turbocharger characteristics, manifold design, and pressure reference plumbing.
The mechanical spring configuration should be selected according to the intended boost pressure and engine management calibration.
Important: Manual and electronic boost controllers generally cannot reliably reduce boost pressure below the wastegate's effective mechanical base pressure.
Included Spring Options
The GenV CompGate40 includes 3 PSI, 5 PSI, 7 PSI, and 14 PSI springs, with the 14 PSI configuration preinstalled.
These springs can be used in manufacturer-approved combinations to adjust the wastegate's mechanical base pressure.
The included spring options provide flexibility for different turbocharger configurations and tuning requirements.
Always follow Turbosmart's spring selection chart and approved combinations.
Sleeper Black Finish
The TS-0552-1015 features Turbosmart's distinctive Sleeper Black appearance.
The Sleeper Series incorporates blacked-out actuator components, locking collar, and reference fittings.
This provides a clean, stealthy appearance that complements black turbocharger hardware, intercooler piping, and other performance engine components.
The Sleeper version retains the same fundamental boost control functionality as the corresponding standard GenV CompGate40.
High-Temperature 347 Stainless Steel Body
The GenV CompGate40 incorporates a wastegate body manufactured from 347 stainless steel.
This material is well suited for components exposed to elevated exhaust temperatures and repeated thermal cycling.
The stainless steel construction helps maintain durability in demanding turbocharger environments.
Nitronic 60 Valve Guide
The CompGate40 features a Nitronic 60 valve guide.
Nitronic 60 is a stainless steel alloy recognized for its resistance to galling and wear.
These properties are beneficial in applications involving repeated movement and high operating temperatures.
The valve guide helps maintain proper valve alignment during wastegate operation.
316 Stainless Steel Valve Seat
The GenV CompGate40 includes a 316 stainless steel valve seat.
The valve seat provides the sealing interface for the wastegate valve.
Proper sealing helps prevent unwanted exhaust bypass when the wastegate is closed.
Correct installation of the valve seat is essential for reliable boost control.
17-7 PH Stainless Steel Springs
The CompGate40 uses 17-7 PH stainless steel springs.
These springs provide the mechanical closing force that acts against boost pressure applied to the actuator diaphragm.
The material is selected for strength and fatigue resistance.
Correct spring selection is essential for maintaining the desired mechanical base boost pressure.
CFD-Optimized Exhaust Flow
Turbosmart developed the GenV wastegate platform using computational fluid dynamics and physical flow testing.
The updated internal geometry is designed to improve exhaust bypass efficiency.
Efficient wastegate flow helps maintain stable boost pressure, particularly in applications producing substantial exhaust gas volume.
Proper manifold design and wastegate placement remain critical factors in overall boost control performance.
Modular GenV Actuator
The GenV CompGate40 features a modular actuator assembly.
This design allows compatible actuator components to be serviced or configured according to the application.
The locking collar secures the actuator assembly while allowing access to the internal springs using the appropriate service tool.
360-Degree Clockable Actuator
The CompGate40 features independently adjustable actuator components.
The actuator housing can be rotated to position the pressure reference ports for improved access and hose routing.
This is especially useful in crowded engine bays where turbocharger components, exhaust manifolds, and intercooler piping compete for limited space.
1/8-Inch NPT Pressure Reference Ports
The GenV CompGate40 incorporates 1/8-inch NPT pressure reference ports.
These ports allow the wastegate to connect to a compatible boost pressure source or boost control system.
Depending on the selected boost control arrangement, the upper and lower actuator chambers may be connected differently.
Unused ports must be sealed with the appropriate plugs.
Always follow Turbosmart's recommended pressure plumbing diagrams.
V-Band Inlet and Outlet Connections
The CompGate40 uses V-band mounting connections on both the inlet and outlet.
V-band clamps provide secure connections while allowing convenient wastegate removal for servicing.
The included stainless steel weld flanges allow the wastegate to be integrated into compatible custom exhaust manifolds and dump tubes.
Strap-Style V-Band Clamps
The GenV CompGate40 includes strap-style V-band clamps.
These clamps provide secure mechanical connections between the wastegate and its mounting flanges.
The design supports reliable clamping while maintaining a compact installation profile.
Optional Liquid Actuator Cooling
The GenV CompGate40 supports optional liquid actuator cooling.
This feature can help manage actuator temperatures in demanding turbocharger installations.
Liquid cooling may be beneficial when the wastegate is positioned close to high-temperature exhaust components or operates under sustained heavy loads.
The necessary cooling components and plumbing must be installed according to Turbosmart's instructions.
Optional Wastegate Position Sensor
The GenV CompGate40 supports an optional wastegate position sensor upgrade.
A position sensor can provide information about wastegate valve movement.
This may be useful for advanced engine management systems, data acquisition, and boost control diagnostics.
The position sensor is sold separately.
Electronic Boost Controller Compatibility
The CompGate40 can be used with compatible electronic boost controllers.
Electronic boost controllers regulate the pressure signal acting on the wastegate diaphragm.
This allows boost pressure to be adjusted above the mechanical base setting within the operating limits of the turbocharger and boost control system.
Proper engine management calibration is essential when increasing boost pressure.
GenV vs. Gen4 CompGate40
The GenV CompGate40 incorporates several improvements over the earlier Gen4 platform.
These include:
Updated internal exhaust flow geometry.
Improved thermal management.
Enhanced fatigue resistance.
Modular actuator construction.
Clockable pressure reference connections.
Optional liquid actuator cooling.
Optional wastegate position monitoring.
Updated V-band mounting components.
The GenV CompGate40 retains the corresponding mounting orientation of the earlier generation, supporting compatible upgrade installations.
However, internal service components should not be assumed interchangeable between generations.
Standard CompGate40 vs. Compressed-Gas CompGate40
Turbosmart offers standard and compressed-gas versions of the GenV CompGate40.
The TS-0552-1015 is the standard pneumatic GenV CompGate40 Sleeper with a 14 PSI spring configuration.
Compressed-gas versions are specifically engineered for applications using regulated CO₂ or compressed air to control wastegate operation.
These versions may incorporate different actuator and diaphragm components.
The standard CompGate40 should not be treated as interchangeable with the compressed-gas version without verifying the appropriate hardware and operating requirements.
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 manifold into the wastegate inlet.
Poor placement or restrictive outlet plumbing can reduce bypass efficiency.
If the wastegate cannot bypass enough exhaust gas, boost pressure may continue increasing even when the valve is fully open.
This condition is commonly referred to as boost creep.
Selecting the correct wastegate size and designing appropriate exhaust plumbing are essential for preventing this problem.
Common Reasons for Replacement
Upgrading an Existing External Wastegate: Provides modern GenV boost control technology.
High-Performance Turbocharger Builds: Supports demanding forced-induction applications.
Upgrading From a Gen4 CompGate40: Provides updated GenV features for compatible installations.
Inconsistent Boost Pressure: Replaces an existing wastegate that has been diagnosed as faulty.
Damaged Wastegate Components: Provides a complete replacement when necessary.
Turbocharger Upgrades: Supports revised exhaust bypass requirements.
Custom Turbo Manifold Installation: Provides a 40mm external wastegate for compatible mounting systems.
Electronic Boost Controller Installation: Supports advanced boost management configurations.
Engine Bay Appearance Upgrades: Offers a stealthy Sleeper Black finish.
Turbo System Rebuilds: Provides a complete wastegate for revised forced-induction systems.
Motorsport Applications: Supports demanding street and competition turbocharger builds.
Installation Notes
Verify Wastegate Sizing: Confirm that a 40mm external wastegate provides sufficient exhaust bypass capacity for the application.
Confirm Mounting Compatibility: Verify the required CompGate40 V-band inlet and outlet connections.
Review Turbosmart Instructions: Read the current GenV CompGate40 installation documentation.
Allow the Engine to Cool: Never work on turbocharger or exhaust components while hot.
Plan Wastegate Placement: Position the wastegate to allow efficient exhaust gas bypass flow.
Inspect the Turbo Manifold: Confirm that the manifold supports the required external wastegate arrangement.
Prepare the Weld Flanges: Ensure proper alignment before fabrication.
Fabricate the Wastegate Inlet: Use appropriate exhaust tubing and welding procedures.
Install the Outlet Plumbing: Route the dump tube or recirculation piping according to the application.
Avoid Exhaust Restrictions: Ensure the wastegate outlet provides adequate flow.
Check 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 installation instructions.
Verify the Installed Spring: Confirm that the 14 PSI configuration matches the intended mechanical base pressure.
Select Approved Spring Combinations: Use only Turbosmart-recommended spring configurations.
Clock the Actuator: Position the housing for convenient pressure line routing.
Install Pressure Reference Fittings: Use compatible 1/8-inch NPT fittings.
Seal Unused Pressure Ports: Install the supplied blanking plugs as required.
Connect the Boost Reference Hose: Use suitable pressure-rated hose.
Verify Boost Controller Plumbing: Follow the correct diagram for the selected control system.
Inspect All Connections: Check pressure hoses, fittings, and mounting hardware.
Perform a Controlled Pressure Test: Verify actuator response using regulated pressure.
Check for Pressure Leaks: Inspect the actuator and reference plumbing.
Verify Mechanical Base Pressure: Confirm expected operation before increasing boost targets.
Review Engine Management Calibration: Ensure the ECU is configured for the turbocharger system.
Perform Initial Low-Boost Testing: Monitor boost pressure carefully.
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 Initial Operation: Verify mounting hardware and pressure connections after heat cycling.
Important: Incorrect wastegate installation or boost control plumbing can cause uncontrolled boost pressure and engine damage. Professional installation and tuning are recommended.
What's Included
(1) Turbosmart GenV CompGate40 40mm External Wastegate – Sleeper Black (TS-0552-1015)
(1) Preinstalled 14 PSI Spring Configuration
Additional 3 PSI, 5 PSI, and 7 PSI Springs
(1) GenV 316 Stainless Steel Valve Seat
(1) Stainless Steel Inlet Weld Flange
(1) Stainless Steel Outlet Weld Flange
(1) Inlet V-Band Clamp
(1) Outlet V-Band Clamp
Mounting Bolts and Nuts
(1) Locking Collar Service Tool
(4) 1/8-Inch NPT Blanking Plugs (One Preinstalled)
(2) 1/8-Inch NPT Hose Tail Fittings
(1) Turbosmart Decal
Installation Instructions
Note: The wastegate is supplied with the 14 PSI spring configuration installed. Additional springs are included for approved alternative configurations. Turbo manifolds, custom exhaust piping, boost controllers, and pressure reference hoses are sold separately.
Upgrade your turbocharger boost management with the Turbosmart GenV CompGate40 40mm External Wastegate – 14 PSI, Sleeper Black (TS-0552-1015), engineered to deliver precise exhaust bypass control, exceptional durability, and reliable performance in demanding forced-induction applications.
Featuring a 40mm wastegate valve, 14 PSI preinstalled spring, stealthy Sleeper Black finish, 347 stainless steel body, Nitronic 60 valve guide, 17-7 PH stainless steel springs, and modular GenV actuator construction, the CompGate40 provides the strength and flexibility required for serious turbocharged builds.
Whether building a turbocharged Honda K20/K24, upgrading a B-Series forced-induction system, or assembling a custom drag racing or roll racing turbocharger setup, the Turbosmart TS-0552-1015 GenV CompGate40 Sleeper delivers proven motorsport engineering, excellent installation flexibility, and dependable boost control performance.
| Part Number: | TS-0552-1015 |
| Brand: | Turbosmart |
| Color: | Black |
| Spring Pressure: | 14 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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