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Product Details
The Turbosmart GenV High-Pressure External Wastegate Spring (TS-0550-3112) is a genuine Turbosmart replacement and upgrade spring designed for compatible GenV HP (High Pressure) external wastegates. Featuring a 40 PSI spring rating and distinctive black/red identification, this heavy-duty outer spring allows users to configure their wastegate for higher mechanical base boost pressures in demanding turbocharged applications.
Engineered specifically for Turbosmart's high-pressure wastegate platform, the TS-0550-3112 provides the spring force required for a nominal 40 PSI base boost pressure when installed individually. When combined with the compatible 10 PSI inner spring, it allows a nominal 50 PSI base pressure configuration.
The wastegate spring plays an essential role in regulating turbocharger boost pressure. By applying mechanical closing force to the wastegate valve, the spring establishes the pressure required to begin opening the wastegate under the appropriate operating conditions.
The TS-0550-3112 is designed for high-performance turbocharger systems that require substantially higher mechanical base boost pressures than conventional street-oriented applications.
Whether upgrading a high-horsepower Honda K20/K24 turbo system, configuring a competition B-Series engine, or servicing a Turbosmart GenV HP wastegate, this genuine Turbosmart spring provides the correct high-pressure configuration for compatible applications.
This product is a replacement wastegate spring only. It is not a complete external wastegate assembly.
Features
Genuine Turbosmart Replacement Component: Manufactured for compatible Turbosmart GenV HP external wastegates.
40 PSI Spring Rating: Provides a nominal 40 PSI mechanical base pressure when installed individually.
50 PSI Combination Capability: Can be combined with the compatible 10 PSI inner spring to achieve a nominal 50 PSI base pressure.
Black/Red Identification: Distinctive color marking helps identify the correct high-pressure spring.
Outer Spring Configuration: Designed for the outer spring position in compatible GenV HP actuators.
High-Pressure Wastegate Compatibility: Intended for Turbosmart GenV HP external wastegate assemblies.
Precision Spring Design: Provides consistent mechanical closing force for boost regulation.
High-Boost Performance Applications: Suitable for properly engineered competition turbocharger systems.
Direct Replacement Component: Replaces the corresponding Turbosmart high-pressure outer spring.
Adjustable Base Boost Configuration: Allows changes to mechanical base pressure using approved spring combinations.
Compatible With Pneumatic Boost Control: Works as part of a properly configured spring-operated wastegate system.
Ideal for Wastegate Servicing: Suitable for replacing an existing spring during maintenance or rebuilding.
Turbosmart Part Number TS-0550-3112: Ensures accurate identification and ordering.
Popular Performance Applications
The Turbosmart TS-0550-3112 is intended for compatible GenV HP external wastegates used in high-boost turbocharger systems.
Popular performance applications include:
Honda Civic K20 Turbo Builds: High-boost K20A, K20A2, K20Z1, and K20Z3 turbocharger systems.
Honda Civic K24 Turbo Builds: Built K24A and K24A2 competition turbocharger applications.
Acura RSX Type-S Turbo Builds: High-horsepower K20 forced-induction systems.
Acura TSX K24 Turbo Applications: Custom high-boost K24 turbocharger configurations.
Honda Accord K-Series Turbo Builds: High-output K20 and K24 forced-induction systems.
Honda S2000 Turbo Builds: Competition F20C and F22C turbocharger applications.
Acura Integra Turbo Builds: High-performance B-Series and K-Series turbocharger systems.
Honda Prelude Turbo Builds: Built H-Series and K-Series turbocharger applications.
K20/K24 Frankenstein Turbo Builds: Competition engine combinations requiring elevated mechanical base boost.
B16, B18, and B20 Turbo Builds: High-boost B-Series turbocharger applications.
Subaru WRX and STI Turbo Builds: Compatible aftermarket Turbosmart GenV HP wastegate systems.
Mitsubishi Evolution Turbo Builds: Competition turbocharger applications.
Nissan SR20DET and RB-Series Turbo Builds: High-pressure external wastegate configurations.
Toyota 1JZ and 2JZ Turbo Builds: High-horsepower turbocharger systems.
Drag Racing Applications: Supports elevated mechanical base boost pressure requirements.
Roll Racing Applications: Suitable for high-output forced-induction systems.
Dedicated Motorsport Vehicles: Designed for compatible high-pressure wastegate configurations.
Important: Compatibility is determined by the Turbosmart wastegate model and actuator configuration, not the vehicle's make, model, or engine code.
This spring is specifically intended for compatible GenV HP external wastegates and should not be assumed to fit standard GenV, Gen4, or electronic wastegate actuators.
Additional Information
- Manufacturer: Turbosmart
- Part Number: TS-0550-3112
- Product Name: GenV HP Spring 40 PSI (Black/Red)
- Product Type: External Wastegate Replacement / Upgrade Spring
- Spring Pressure: 40 PSI / Approximately 2.76 Bar
- Spring Position: Outer
- Spring Identification: Black/Red
- Compatible Wastegate Series: Turbosmart GenV HP External Wastegates
- Single Spring Configuration: 40 PSI
- Combination Spring Configuration: 50 PSI with Compatible 10 PSI Inner Spring
- Vehicle Fitment: Universal, Based on Compatible Turbosmart Wastegate
- UPC: 9329677022223
40 PSI Mechanical Base Boost Pressure
The TS-0550-3112 is rated for a nominal mechanical base pressure of 40 PSI when installed individually in a compatible GenV HP external wastegate.
The spring applies closing force to the wastegate valve, helping determine the pressure at which the wastegate begins opening.
Actual operating boost pressure may vary depending on exhaust backpressure, wastegate placement, turbocharger characteristics, and boost control plumbing.
The spring should only be installed in a turbocharger system engineered to operate at the intended boost pressure.
50 PSI Spring Combination
The TS-0550-3112 can also be combined with Turbosmart's compatible 10 PSI inner spring.
This creates a nominal 50 PSI mechanical base boost configuration.
Turbosmart's approved GenV HP spring combinations include:
| Spring Configuration | Nominal Base Pressure |
|---|---|
| 10 PSI inner spring | 10 PSI |
| 25 PSI outer spring | 25 PSI |
| 10 PSI inner + 25 PSI outer | 35 PSI |
| TS-0550-3112 40 PSI outer spring | 40 PSI |
| 10 PSI inner + TS-0550-3112 40 PSI outer | 50 PSI |
The 10 PSI and 25 PSI springs are separate components and are not included with TS-0550-3112.
Compatible Turbosmart GenV HP Wastegates
The TS-0550-3112 is designed for compatible Turbosmart GenV HP external wastegate assemblies, including appropriate high-pressure configurations of the:
GenV UltraGate38 HP – 38mm
GenV CompGate40 HP – 40mm
GenV HyperGate45 HP – 45mm
Verify the specific wastegate model and actuator configuration before ordering.
Outer Spring Design
The TS-0550-3112 is an outer spring.
Its dimensions and spring characteristics are designed for the outer spring position within compatible Turbosmart GenV HP actuators.
It should not be substituted for an inner spring or installed in an actuator that does not support the required high-pressure spring configuration.
High-Pressure Wastegate Applications
The GenV HP wastegate platform is designed for applications requiring elevated mechanical base boost pressure.
The TS-0550-3112 allows users to increase the nominal base pressure to 40 PSI or configure the actuator for 50 PSI when combined with the approved 10 PSI inner spring.
These configurations are generally intended for purpose-built high-boost engines rather than conventional street turbocharger setups.
Genuine Turbosmart Spring Compatibility
Using the correct Turbosmart spring helps maintain the intended wastegate actuator characteristics.
Incorrectly sized or incompatible springs may cause improper actuator operation, inconsistent boost regulation, or mechanical interference.
Always use manufacturer-approved spring combinations.
Mechanical Base Boost vs. Controlled Boost
The installed wastegate spring establishes a nominal mechanical base pressure.
A compatible boost controller may increase boost pressure above this setting by regulating pressure supplied to the wastegate actuator.
However, a conventional boost controller generally cannot reliably reduce boost pressure below the effective mechanical base pressure established by the installed spring configuration.
Selecting the correct spring is therefore an important part of turbocharger system design.
Common Reasons for Replacement
Increasing Mechanical Base Boost: Upgrades a compatible GenV HP wastegate to a nominal 40 PSI configuration.
Configuring 50 PSI Base Pressure: Combines with the approved 10 PSI inner spring.
High-Horsepower Turbocharger Upgrades: Supports increased boost requirements.
Replacing an Existing Spring: Restores the intended spring configuration when an existing spring is damaged or incorrect.
Changing Wastegate Spring Pressure: Allows adjustment of the mechanical base boost setting.
Turbocharger System Reconfiguration: Supports revised engine and turbocharger requirements.
Drag Racing Applications: Suitable for properly engineered high-boost competition systems.
Roll Racing Applications: Supports elevated boost pressure requirements.
Wastegate Maintenance: Provides a genuine replacement component during actuator servicing.
Engine Management Upgrades: Supports revised boost control strategies when paired with appropriate hardware.
Motorsport Applications: Provides a high-pressure spring option for compatible GenV HP wastegates.
Installation Notes
Verify Wastegate Compatibility: Confirm that the wastegate is a compatible Turbosmart GenV HP model.
Confirm Desired Base Pressure: Determine whether the application requires a nominal 40 PSI or 50 PSI spring configuration.
Review Turbosmart Instructions: Follow the current GenV HP wastegate spring replacement procedure.
Allow the Engine to Cool: Never service the wastegate while surrounding exhaust components are hot.
Remove the Wastegate if Necessary: Provide adequate access to the actuator assembly.
Relieve Spring Tension Safely: Wastegate springs are compressed and can release significant stored energy.
Use the Proper Service Tools: Follow Turbosmart's recommended procedure for safely opening the actuator.
Remove the Existing Spring Configuration: Carefully inspect the actuator components.
Inspect the Diaphragm: Check for damage, wear, or improper seating.
Inspect the Actuator Housing: Verify that the internal components are clean and undamaged.
Install the 40 PSI Outer Spring: Position the TS-0550-3112 in the correct outer spring location.
Configure for 50 PSI if Required: Install the compatible 10 PSI inner spring according to Turbosmart's approved spring chart.
Verify Spring Alignment: Confirm that all springs are properly seated.
Reassemble the Actuator: Follow the manufacturer's recommended procedure.
Secure the Locking Collar: Verify correct engagement and assembly.
Reinstall the Wastegate: Secure all mounting connections.
Reconnect Pressure Reference Hoses: Follow the correct boost control plumbing arrangement.
Check for Pressure Leaks: Inspect the actuator and associated fittings.
Verify Boost Controller Settings: Ensure the controller is configured for the new spring pressure.
Confirm Engine Management Calibration: Verify that the engine and fuel system are prepared for the intended boost pressure.
Perform Controlled Initial Testing: Monitor boost pressure carefully during initial operation.
Check for Boost Spikes or Creep: Verify stable boost regulation.
Reinspect After Initial Operation: Confirm that the actuator and wastegate remain properly secured.
Important: The TS-0550-3112 is intended for high-pressure applications. A nominal 40 PSI or 50 PSI mechanical base pressure can cause severe engine damage if the turbocharger system is not properly engineered and calibrated. Professional installation and tuning are strongly recommended.
What's Included
(1) Turbosmart GenV HP 40 PSI Outer Wastegate Spring – Black/Red (TS-0550-3112)
Note: This listing is for the 40 PSI outer spring only. The complete wastegate assembly, 10 PSI inner spring, actuator housing, locking collar tool, and other wastegate components are sold separately.
Upgrade your high-pressure wastegate configuration with the Turbosmart GenV HP 40 PSI External Wastegate Spring – Black/Red (TS-0550-3112).
Designed for compatible Turbosmart GenV HP external wastegates, this genuine replacement outer spring provides a nominal 40 PSI mechanical base pressure and supports a 50 PSI configuration when combined with the approved 10 PSI inner spring.
Whether upgrading a high-horsepower Honda K20/K24, configuring a competition B-Series turbo system, or servicing a Turbosmart GenV HP wastegate, the TS-0550-3112 provides the correct spring option for demanding high-boost applications.
| Part Number: | TS-0550-3112 |
| Brand: | Turbosmart |
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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