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Product Details
The Turbosmart GenV WG45/WG50 7 PSI Middle Wastegate Spring (TS-0550-3087) is a genuine Turbosmart replacement spring designed for compatible GenV HyperGate45 45mm and ProGate50 50mm external wastegates. Featuring a 7 PSI (0.48 bar) nominal spring pressure rating and green color identification, this precision-engineered spring allows enthusiasts to replace a worn spring or adjust the mechanical base boost pressure of their turbocharger system.
External wastegate springs play an essential role in controlling turbocharger boost pressure. The spring applies closing force to the wastegate valve, helping regulate when exhaust gases are allowed to bypass the turbocharger turbine.
The TS-0550-3087 is specifically designed for the middle spring position within compatible GenV WG45/WG50 wastegate assemblies. It can be used individually or combined with approved inner and outer springs to achieve different nominal base pressure settings.
Turbosmart's interchangeable spring system provides flexibility for turbocharged applications requiring precise wastegate pressure configuration. Whether maintaining a street-driven turbocharged vehicle, increasing the mechanical base pressure of a performance build, or configuring a wastegate for an electronic boost controller, selecting the correct spring combination is essential for consistent boost control.
The green identification marking makes it easy to distinguish the 7 PSI middle spring from other available GenV wastegate spring options.
Whether upgrading a turbocharged Honda K20/K24, servicing an existing HyperGate45, or adjusting the base pressure of a ProGate50, the Turbosmart TS-0550-3087 Green Middle Wastegate Spring provides genuine compatibility and dependable spring performance.
Features
Genuine Turbosmart Replacement Spring: Designed specifically for compatible GenV external wastegates.
7 PSI Spring Rating: Provides approximately 7 PSI (0.48 bar) of nominal spring pressure.
Green Color Identification: Easily distinguished from other GenV spring pressure options.
Middle Spring Position: Designed for the middle spring location within the wastegate actuator.
GenV HyperGate45 Compatibility: Fits compatible standard 45mm HyperGate45 external wastegates.
GenV ProGate50 Compatibility: Fits compatible standard 50mm ProGate50 external wastegates.
Precision Spring Construction: Designed for consistent spring force and actuator response.
Durable Metal Construction: Engineered for repeated compression cycles.
Adjustable Spring Combinations: Can be paired with approved inner and outer springs.
Mechanical Base Pressure Adjustment: Allows changes to the wastegate's nominal spring pressure.
Direct Replacement Design: Replaces the corresponding original GenV WG45/WG50 middle spring.
Boost Control Compatibility: Suitable for properly configured manual and electronic boost control systems.
Serviceable Wastegate Component: Allows spring replacement without purchasing a complete wastegate.
Street and Motorsport Applications: Suitable for compatible performance turbocharger systems.
Universal Vehicle Application: Fitment is determined by the installed Turbosmart wastegate.
Turbosmart Part Number TS-0550-3087: Ensures accurate identification and ordering.
Popular Performance Applications
The Turbosmart TS-0550-3087 is intended for turbocharged vehicles equipped with compatible Turbosmart GenV HyperGate45 or ProGate50 external wastegates.
Popular performance applications include:
Honda Civic K20 Turbo Builds: K20A, K20A2, K20Z1, and K20Z3 forced-induction systems.
Honda Civic K24 Turbo Builds: K24A and K24A2 turbocharger applications.
Acura RSX Type-S Turbo Builds: K20 turbocharger systems utilizing compatible GenV wastegates.
Acura TSX K24 Turbo Applications: Aftermarket turbocharger and wastegate installations.
Honda Accord K-Series Turbo Builds: Custom external wastegate systems.
Honda S2000 Turbo Builds: F20C and F22C forced-induction applications.
Acura Integra Turbo Builds: B-Series and K-Series turbocharger systems.
Honda Prelude Turbo Builds: H-Series and K-Series forced-induction applications.
K20/K24 Frankenstein Turbo Builds: High-performance K-Series turbocharger configurations.
B16, B18, and B20 Turbo Builds: External wastegate spring tuning.
Subaru WRX and STI Turbo Builds: Compatible aftermarket GenV wastegate installations.
Mitsubishi Evolution Turbo Builds: Custom external wastegate systems.
Nissan SR20DET and RB-Series Turbo Builds: Performance turbocharger applications.
Toyota 1JZ and 2JZ Turbo Builds: High-horsepower external wastegate systems.
Drag Racing Applications: Mechanical wastegate base pressure adjustments.
Roll Racing Applications: Wastegate spring configuration for performance boost control.
Track and Motorsport Vehicles: External wastegate maintenance and spring replacement.
Important: This spring is not a direct-fit component for every vehicle listed above. The vehicle must be equipped with a compatible Turbosmart GenV WG45/WG50 wastegate.
Additional Information
- Manufacturer: Turbosmart
- Part Number: TS-0550-3087
- Product Name: GenV WG45/WG50 7 PSI Middle Wastegate Spring
- Product Type: External Wastegate Replacement Spring
- Spring Pressure: 7 PSI
- Spring Pressure (Bar): Approximately 0.48 Bar
- Spring Pressure (kPa): Approximately 48.3 kPa
- Spring Color: Green
- Spring Position: Middle
- Compatible Wastegate: GenV HyperGate45
- Compatible Wastegate: GenV ProGate50
- Wastegate Sizes: 45mm and 50mm
- Primary Function: Mechanical Wastegate Base Pressure Adjustment
- Installation Location: Internal Spring Chamber of Compatible External Wastegate
- Vehicle Fitment: Universal, Based on Wastegate Compatibility
- Quantity: One Spring
- UPC: 9329677020366
Genuine Turbosmart GenV Replacement Spring
The TS-0550-3087 is designed specifically for the standard Turbosmart GenV WG45/WG50 wastegate spring system.
Its dimensions and spring characteristics are intended to match the middle spring position within compatible HyperGate45 and ProGate50 assemblies.
Using the correct replacement spring helps maintain the intended actuator operation and mechanical pressure setting.
7 PSI Nominal Spring Pressure
The green middle spring provides a nominal spring pressure of 7 PSI.
This pressure represents the approximate mechanical base pressure associated with the spring when installed in the appropriate configuration.
Actual boost pressure may vary depending on the turbocharger system, exhaust backpressure, wastegate placement, boost controller configuration, and other operating conditions.
Important: A 7 PSI spring does not guarantee that the engine will produce exactly 7 PSI of boost in every installation.
Middle Spring Position
The TS-0550-3087 is designed for the middle spring position within compatible GenV WG45/WG50 wastegates.
Turbosmart uses different spring sizes and positions to allow multiple spring combinations.
The middle spring can be installed by itself or combined with approved inner and outer springs to achieve different nominal pressure settings.
It should not be substituted for an inner or outer spring.
Compatible Turbosmart Wastegates
The TS-0550-3087 is intended for:
Turbosmart GenV HyperGate45
45mm external wastegate.
Standard pneumatic GenV configuration.
Compatible with the WG45/WG50 spring family.
Supports approved interchangeable spring combinations.
Turbosmart GenV ProGate50
50mm external wastegate.
Standard pneumatic GenV configuration.
Compatible with the WG45/WG50 spring family.
Supports approved interchangeable spring combinations.
Compatibility Note: This spring is not intended for the GenV UltraGate38, CompGate40, HyperGate45 Lite, or PowerGate60 spring systems.
Compatibility with high-pressure, electronic, or other specialized wastegate variants must be verified separately.
Turbosmart GenV WG45/WG50 Spring Options
Turbosmart offers the following standard springs for the WG45/WG50 wastegate family:
TS-0550-3085 – 3 PSI Inner Spring (Orange)
Nominal pressure: 3 PSI.
Spring position: Inner.
Compatible with standard GenV WG45/WG50 spring configurations.
TS-0550-3086 – 5 PSI Inner Spring (Yellow)
Nominal pressure: 5 PSI.
Spring position: Inner.
Compatible with standard GenV WG45/WG50 spring configurations.
TS-0550-3087 – 7 PSI Middle Spring (Green)
Nominal pressure: 7 PSI.
Spring position: Middle.
Compatible with standard GenV WG45/WG50 spring configurations.
TS-0550-3088 – 14 PSI Outer Spring (Blue)
Nominal pressure: 14 PSI.
Spring position: Outer.
Compatible with standard GenV WG45/WG50 spring configurations.
These springs can be combined according to Turbosmart's published spring pressure chart.
Popular Spring Pressure Combinations
Turbosmart's standard GenV WG45/WG50 spring chart identifies the following nominal pressure combinations:
7 PSI Base Pressure
Green 7 PSI middle spring.
Part number: TS-0550-3087.
10 PSI Base Pressure
Orange 3 PSI inner spring.
Green 7 PSI middle spring.
12 PSI Base Pressure
Yellow 5 PSI inner spring.
Green 7 PSI middle spring.
14 PSI Base Pressure
Blue 14 PSI outer spring.
17 PSI Base Pressure
Orange 3 PSI inner spring.
Blue 14 PSI outer spring.
19 PSI Base Pressure
Yellow 5 PSI inner spring.
Blue 14 PSI outer spring.
21 PSI Base Pressure
Green 7 PSI middle spring.
Blue 14 PSI outer spring.
24 PSI Base Pressure
Orange 3 PSI inner spring.
Green 7 PSI middle spring.
Blue 14 PSI outer spring.
26 PSI Base Pressure
Yellow 5 PSI inner spring.
Green 7 PSI middle spring.
Blue 14 PSI outer spring.
Important: Spring combinations must follow Turbosmart's official chart and installation instructions. Do not combine the 3 PSI and 5 PSI inner springs in the same wastegate assembly.
Mechanical Base Pressure vs. Electronic Boost Control
The wastegate spring establishes the mechanical pressure setting of the actuator.
An electronic boost controller can manipulate the pressure applied to the wastegate diaphragm to achieve a higher boost target.
However, an electronic boost controller does not eliminate the need for the correct mechanical spring configuration.
Selecting an appropriate spring pressure helps provide predictable boost control and suitable operating characteristics.
Spring Pressure and Engine Safety
Increasing the wastegate spring pressure raises the mechanical base pressure that the turbocharger system may produce.
Before changing springs, verify that the engine, fuel system, turbocharger, and engine management calibration are suitable for the intended boost level.
A higher spring pressure may require ECU tuning and additional supporting modifications.
Never increase spring pressure beyond the capabilities of the engine or turbocharger system.
Green Spring Identification
The TS-0550-3087 uses green color identification to distinguish it from other GenV WG45/WG50 springs.
This makes it easier to identify the spring during installation, servicing, or spring combination changes.
The spring should always be identified by its manufacturer part number and pressure rating rather than color alone when its history is unknown.
Replacement Spring vs. Complete Wastegate
The TS-0550-3087 is a replacement spring only.
It does not include the wastegate body, diaphragm, valve assembly, mounting flanges, or pressure reference fittings.
It is intended for applications where the existing wastegate is serviceable and a 7 PSI middle spring is required.
Common Reasons for Replacement
Changing Wastegate Base Pressure: Adjusts the mechanical spring pressure of a compatible wastegate.
Turbocharger Upgrades: Supports revised boost control requirements.
Electronic Boost Controller Installation: Allows selection of an appropriate base pressure.
Worn Wastegate Spring: Replaces a damaged or fatigued spring.
Incorrect Existing Spring: Restores the desired nominal spring configuration.
Wastegate Rebuilds: Provides a genuine replacement component during maintenance.
Performance Tuning: Supports approved spring combinations for different boost targets.
Custom Turbocharger Builds: Allows wastegate pressure configuration during installation.
Used Wastegate Restoration: Replaces missing or unidentified springs.
Motorsport Maintenance: Provides a replacement spring for compatible GenV wastegates.
Boost Control Troubleshooting: Supports correction of an improperly configured wastegate spring assembly.
Installation Notes
Verify Wastegate Compatibility: Confirm that the installed wastegate is a compatible standard GenV HyperGate45 or ProGate50.
Determine the Desired Base Pressure: Select the appropriate spring combination using Turbosmart's official chart.
Review Turbosmart Instructions: Read the applicable wastegate installation and servicing documentation.
Allow the Engine to Cool: Ensure the turbocharger and exhaust components are cool before beginning.
Disconnect Pressure Reference Hoses: Remove hoses as necessary to access the wastegate actuator.
Inspect the Existing Wastegate: Check for damaged hardware, leaks, or other service issues.
Prepare for Spring Compression: Wastegate springs are installed under compression and can cause injury if released incorrectly.
Secure the Wastegate Assembly: Use the appropriate tools and servicing procedure.
Remove the Wastegate Cap Carefully: Follow Turbosmart's instructions while controlling spring tension.
Inspect the Existing Springs: Identify their positions, colors, and pressure ratings.
Remove the Required Spring: Carefully remove the existing middle spring or spring combination.
Inspect the Diaphragm: Check for damage, wear, or incorrect positioning.
Inspect the Spring Seats: Ensure the contact surfaces are clean and undamaged.
Install the Green Middle Spring: Position the TS-0550-3087 in the correct middle spring location.
Install Additional Approved Springs if Required: Follow Turbosmart's published spring combination chart.
Verify Spring Alignment: Ensure all springs are correctly centered and seated.
Reassemble the Wastegate: Follow the manufacturer's procedure while controlling spring compression.
Secure the Wastegate Cap: Tighten the mounting hardware according to Turbosmart's specifications.
Reconnect Pressure Reference Hoses: Restore the correct boost control plumbing.
Perform a Pressure Test: Verify proper actuator operation and check for leaks.
Confirm ECU Calibration: Ensure the engine management system is appropriate for the intended boost pressure.
Perform Controlled Initial Testing: Monitor boost pressure carefully during initial operation.
Reinspect After Installation: Check for pressure leaks, loose hardware, or abnormal wastegate response.
Important: External wastegate springs are under compression. Incorrect disassembly or spring selection can cause injury, uncontrolled boost pressure, or engine damage. Professional installation is recommended when changing wastegate spring configurations.
What's Included
(1) Turbosmart GenV WG45/WG50 7 PSI Middle Wastegate Spring – Green (TS-0550-3087)
Note: This listing includes one green 7 PSI middle spring only. The complete wastegate, additional springs, diaphragm, mounting hardware, and other accessories are not included.
Precisely configure your turbocharger's mechanical boost control with the Turbosmart GenV WG45/WG50 7 PSI Middle Wastegate Spring – Green (TS-0550-3087).
Designed specifically for compatible GenV HyperGate45 45mm and ProGate50 50mm external wastegates, this genuine replacement spring provides a 7 PSI nominal pressure rating and can be used independently or combined with approved Turbosmart springs to achieve different base pressure settings.
Whether maintaining a turbocharged Honda K20/K24, rebuilding a GenV wastegate, or fine-tuning your boost control system, the Turbosmart TS-0550-3087 delivers reliable fitment, consistent spring performance, and genuine Turbosmart quality.
| Part Number: | TS-0550-3087 |
| Brand: | Turbosmart |
| Color: | Green |
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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