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Product Details
The Turbosmart GenV WG38/WG40 Spring Replacement Kit (TS-0550-3150) is a genuine Turbosmart replacement spring kit designed for the GenV UltraGate38 38mm and CompGate40 40mm external wastegates. Engineered to support consistent mechanical wastegate operation, this kit provides replacement spring components for maintaining or reconfiguring the base boost pressure of compatible Turbosmart external wastegates.
The wastegate spring is an essential component of a turbocharger's boost control system. Working alongside the wastegate diaphragm and valve assembly, the spring provides mechanical resistance that helps determine when the wastegate begins opening to divert exhaust gas away from the turbine.
Proper spring selection is critical for maintaining predictable boost pressure, especially in performance applications utilizing upgraded turbochargers, aftermarket engine management systems, and electronic boost controllers.
The TS-0550-3150 is designed specifically for Turbosmart's smaller GenV external wastegate models. The UltraGate38 and CompGate40 are popular choices for compact turbocharger installations where reliable boost control and efficient packaging are important.
Turbosmart develops its wastegate springs to meet the dimensional and performance requirements of the intended wastegate assemblies. Using genuine replacement springs helps maintain the correct fit within the spring chamber and supports consistent operation.
The replacement kit provides a convenient service solution for owners who need to replace existing springs or select an appropriate spring arrangement for a revised boost control configuration.
For example, a turbocharged engine originally configured for a lower mechanical boost pressure may require a different spring arrangement after changes to the turbocharger, engine setup, or boost control strategy.
The TS-0550-3150 allows the compatible wastegate's spring configuration to be serviced without purchasing an entirely new wastegate assembly.
For Honda and Acura performance enthusiasts, the kit is particularly relevant to custom turbocharged K20, K24, B16, B18, and B20 engine builds equipped with a Turbosmart GenV UltraGate38 or CompGate40.
Whether performing routine wastegate maintenance, replacing damaged springs, or preparing a custom turbocharger system for a revised boost setting, the Turbosmart TS-0550-3150 provides genuine replacement components for dependable external wastegate operation.
Features
Genuine Turbosmart Replacement Kit: Designed for compatible Turbosmart GenV external wastegates.
GenV UltraGate38 Compatibility: Intended for the WG38 38mm external wastegate.
GenV CompGate40 Compatibility: Intended for the WG40 40mm external wastegate.
Precision-Engineered Springs: Manufactured to meet Turbosmart's wastegate requirements.
Manufacturer-Specific Fitment: Designed for the correct spring chamber dimensions.
Mechanical Boost Control: Provides spring resistance required for wastegate operation.
Base Boost Pressure Configuration: Supports approved spring arrangements for the desired mechanical boost setting.
Wastegate Maintenance Solution: Allows replacement of existing spring components.
Serviceable Design: Helps extend the useful service life of an otherwise functional wastegate.
Consistent Spring Resistance: Supports predictable wastegate response when properly configured.
Turbocharged Engine Applications: Suitable for compatible forced-induction systems.
Electronic Boost Controller Compatibility: Can be used with properly configured electronic boost control systems.
Manual Boost Controller Compatibility: Supports appropriate manual boost control arrangements.
Street Performance Applications: Suitable for turbocharged street vehicles using the specified wastegate.
Motorsport Applications: Appropriate for compatible drag racing, track, and competition builds.
Custom Turbocharger Systems: Suitable for a variety of aftermarket turbo installations.
Compact Wastegate Applications: Designed for Turbosmart's 38mm and 40mm GenV wastegate models.
Genuine Manufacturer Components: Helps maintain compatibility with the original wastegate design.
Universal Vehicle Application: Fitment is determined by the installed wastegate, not the vehicle make or model.
Turbosmart Part Number TS-0550-3150: Provides accurate product identification.
Additional Information
- Manufacturer: Turbosmart
- Part Number: TS-0550-3150
- Product Series: GenV
- Product Type: External Wastegate Spring Replacement Kit
- Compatible Wastegate: GenV WG38 UltraGate38
- Compatible Wastegate: GenV WG40 CompGate40
- Compatible Wastegate Valve Diameters: 38mm and 40mm
- Application: Wastegate Spring Replacement and Base Boost Pressure Configuration
- Spring Pressure: Determined by the selected spring or approved spring combination
- Installation Location: Wastegate Spring Chamber
- Vehicle Fitment: Universal, Based on Wastegate Compatibility
Turbosmart GenV UltraGate38 Compatibility
The TS-0550-3150 is designed for the Turbosmart GenV UltraGate38 external wastegate.
The UltraGate38 features a 38mm valve and is commonly used in compact turbocharger installations where space and exhaust bypass requirements favor a smaller external wastegate.
The replacement spring kit is intended to work with the UltraGate38's internal spring arrangement.
Using the correct replacement springs helps maintain proper fitment and predictable mechanical wastegate operation.
Turbosmart GenV CompGate40 Compatibility
The TS-0550-3150 is also designed for the Turbosmart GenV CompGate40 external wastegate.
The CompGate40 features a 40mm valve and is used in a variety of performance turbocharger applications.
Although the UltraGate38 and CompGate40 have different valve diameters, the TS-0550-3150 is intended for their compatible GenV spring configurations.
Understanding Wastegate Spring Pressure
An external wastegate regulates turbocharger boost by controlling the amount of exhaust gas bypassing the turbine wheel.
The wastegate spring provides mechanical resistance against the pressure acting on the diaphragm.
As pressure increases, the force acting on the diaphragm begins to overcome the spring resistance, allowing the wastegate valve to open.
The spring configuration establishes the wastegate's nominal mechanical base boost pressure.
Actual boost pressure may vary depending on turbocharger sizing, exhaust backpressure, wastegate placement, boost controller configuration, and engine operating conditions.
Wastegate Spring Replacement
The TS-0550-3150 provides replacement spring components for servicing compatible GenV WG38 and WG40 wastegates.
Spring replacement may be necessary when existing springs are damaged, corroded, incorrectly configured, or unsuitable for the intended boost pressure.
Replacing the springs can also be part of a broader wastegate inspection or rebuild.
During servicing, inspect the diaphragm, spring seats, valve, guide, and other internal components for wear or damage.
Base Boost Pressure Configuration
Wastegate spring selection is an important part of turbocharger boost management.
A lower spring pressure generally establishes a lower mechanical base boost setting.
A higher spring pressure provides greater resistance against wastegate opening.
Some Turbosmart wastegate configurations allow approved spring combinations to achieve different base boost pressure settings.
Always follow Turbosmart's spring selection chart and installation instructions.
Do not assume that every spring in a replacement kit should be installed simultaneously.
Electronic Boost Controller Compatibility
The GenV UltraGate38 and CompGate40 can be used with compatible electronic boost controllers.
An electronic boost controller regulates the pressure signal acting on the wastegate diaphragm.
The wastegate spring establishes the mechanical foundation for this control strategy.
Changing the spring arrangement can affect boost response and the controller's available adjustment range.
After installing replacement springs, the electronic boost controller should be checked and recalibrated as necessary.
Manual Boost Controller Applications
The replacement spring kit can also be used with compatible manual boost control systems.
A manual boost controller modifies the pressure signal reaching the wastegate.
The selected spring pressure must still be appropriate for the intended boost setting.
An excessively stiff spring can prevent the system from achieving sufficiently low boost pressure.
Genuine Turbosmart Replacement Components
Turbosmart develops its replacement springs for the dimensional and operating requirements of its wastegate assemblies.
Using genuine replacement components helps maintain compatibility with the spring chamber, diaphragm assembly, and internal spring seats.
This is particularly important in high-performance applications where stable boost control is essential.
Wastegate Spring Kit Compatibility
Turbosmart offers different spring replacement kits for its GenV wastegate families.
TS-0550-3150: GenV WG38/WG40 Spring Replacement Kit.
TS-0550-3151: GenV WG45/WG50 Spring Replacement Kit.
TS-0550-3152: GenV WG60 Spring Replacement Kit.
These kits are not automatically interchangeable between wastegate sizes.
Always confirm the wastegate model before ordering.
Boost Pressure and Engine Tuning
Changing wastegate spring pressure can alter turbocharger response, mechanical base boost pressure, and the operation of the complete boost control system.
Even if electronic boost controller settings remain unchanged, a different spring configuration may produce different boost behavior.
After spring replacement, verify mechanical base pressure and review the engine management calibration.
Professional tuning is recommended for high-output turbocharged applications.
Common Reasons for Replacement
Wastegate Spring Maintenance: Replaces existing springs during servicing.
Incorrect Base Boost Pressure: Supports selection of an appropriate spring configuration.
Damaged Wastegate Springs: Replaces springs showing damage or corrosion.
Turbocharger Upgrades: Supports revised boost control requirements.
Electronic Boost Controller Installation: Allows the spring arrangement to be matched to the intended control strategy.
Manual Boost Controller Setup: Supports compatible mechanical boost control systems.
Wastegate Rebuilds: Provides replacement spring components during internal servicing.
Boost Control Troubleshooting: Helps address problems caused by damaged or incorrectly configured springs.
Engine Configuration Changes: Supports revised boost requirements following performance modifications.
Custom Motorsport Applications: Provides replacement springs for compatible WG38 and WG40 wastegates.
Preventative Maintenance: Allows inspection and replacement of existing springs.
High-Performance Turbo Builds: Maintains the mechanical spring system in compatible external wastegates.
Installation Notes
Verify Wastegate Compatibility: Confirm that the installed wastegate is a Turbosmart GenV UltraGate38 or CompGate40.
Review Manufacturer Instructions: Read Turbosmart's current wastegate service documentation.
Confirm the Required Spring Pressure: Determine the intended mechanical base boost pressure.
Allow the Engine to Cool: Never service wastegate components near hot exhaust hardware.
Disconnect Pressure Lines: Remove boost reference hoses as required.
Inspect the Wastegate: Check for external damage, leaks, or other visible issues.
Remove the Wastegate if Necessary: Follow the manufacturer's recommended service procedure.
Prepare a Clean Work Area: Prevent dirt and debris from entering the wastegate.
Control Spring Compression: Use appropriate tools to safely restrain the wastegate cap.
Release Spring Tension Carefully: Follow Turbosmart's instructions for removing the cap.
Remove Existing Springs: Record the original spring arrangement before disassembly.
Inspect Internal Components: Check the diaphragm, spring seats, valve, and guide for damage.
Verify Replacement Springs: Confirm that the springs are intended for the GenV WG38/WG40.
Select the Correct Spring Arrangement: Use only manufacturer-approved spring combinations.
Position the Springs Correctly: Install the selected springs according to Turbosmart's instructions.
Reinstall the Wastegate Cap: Control spring compression throughout reassembly.
Secure the Assembly: Follow the manufacturer's specified reassembly procedure.
Inspect Pressure Connections: Confirm that fittings and hoses are correctly installed.
Reinstall the Wastegate: Secure the assembly using appropriate mounting hardware.
Check Exhaust Connections: Inspect the wastegate flange and exhaust plumbing.
Verify Boost Controller Settings: Confirm that the controller is configured for the new spring arrangement.
Perform a Controlled Pressure Test: Check wastegate operation using regulated pressure.
Inspect for Leaks: Check the pressure plumbing and wastegate assembly.
Perform Initial Low-Boost Testing: Monitor boost pressure before full-load operation.
Verify Mechanical Base Pressure: Confirm the intended boost response.
Review ECU Calibration: Adjust engine management and boost control settings if required.
Monitor Boost Stability: Check for unexpected boost spikes, creep, or inconsistent behavior.
Reinspect After Initial Operation: Verify mounting hardware, pressure hoses, and wastegate operation.
Important: External wastegate springs may be under substantial compression. Improper cap removal or spring installation can cause serious injury. Follow Turbosmart's approved service procedures and use suitable spring compression equipment.
What's Included
(1) Turbosmart GenV WG38/WG40 Spring Replacement Kit (TS-0550-3150)
Note: This listing is for the genuine WG38/WG40 replacement spring kit only. The exact number of springs and their individual pressure ratings should be confirmed against the manufacturer's package contents. The complete wastegate, diaphragm, valve assembly, and installation tools are not included.
Maintain dependable boost control with the Turbosmart GenV WG38/WG40 Spring Replacement Kit (TS-0550-3150), engineered specifically for the GenV UltraGate38 38mm and CompGate40 40mm external wastegates.
Featuring genuine Turbosmart replacement springs and manufacturer-specific fitment, this kit provides a convenient solution for servicing existing wastegate springs or configuring the mechanical base boost pressure of a compatible turbocharger system.
Whether maintaining a turbocharged K-Series Honda, servicing a high-performance street car, or completing a custom motorsport turbocharger installation, the Turbosmart TS-0550-3150 delivers the compatibility, quality, and performance-focused engineering expected from Turbosmart.
| Part Number: | TS-0550-3150 |
| 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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