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Product Details
The Turbosmart Big Bubba 21 inHg Replacement Spring (TS-0204-2204) is a genuine Turbosmart replacement and tuning component designed for compatible Big Bubba blow-off valves. Featuring a 21 inHg vacuum rating and red color identification, this spring allows performance enthusiasts to match their blow-off valve's operating characteristics to their engine's manifold vacuum.
Proper spring selection is essential for consistent blow-off valve operation. The spring helps maintain valve seating during normal engine operation while allowing the valve to respond to pressure changes when the throttle closes.
Turbocharged engines produce varying levels of manifold vacuum depending on displacement, camshaft specifications, idle speed, and engine modifications. Selecting the correct blow-off valve spring helps maintain reliable operation across different engine configurations.
The TS-0204-2204 is intended for compatible Big Bubba blow-off valves used on engines producing approximately 18–21 inHg of manifold vacuum at idle. Its 21 inHg rating makes it suitable for applications requiring a firmer spring than the lower-vacuum options available in the Big Bubba range.
Manufactured to Turbosmart's performance standards, this replacement spring provides a convenient way to service or recalibrate an existing blow-off valve without replacing the complete assembly.
Whether maintaining a high-horsepower Honda K20/K24 turbocharger system, tuning a competition B-Series engine, or servicing a dedicated drag racing vehicle, the Turbosmart TS-0204-2204 Big Bubba Replacement Spring provides genuine replacement compatibility and dependable performance.
Features
Genuine Turbosmart Replacement Spring: Designed for compatible Turbosmart Big Bubba blow-off valves.
21 inHg Vacuum Rating: Provides the specified spring setting for compatible applications.
Red Spring Identification: Helps distinguish this spring from other Big Bubba spring options.
18–21 inHg Recommended Idle Vacuum: Intended for engines operating within this approximate manifold vacuum range.
Big Bubba Series Compatibility: Designed for the corresponding Turbosmart blow-off valve family.
Blow-Off Valve Tuning: Allows spring selection based on engine vacuum characteristics.
Reliable Valve Seating: Helps maintain the intended valve closing force.
Consistent Valve Response: Supports proper operation during throttle transitions.
Durable Spring Construction: Designed for repeated compression during normal blow-off valve operation.
Direct Replacement Component: Replaces the corresponding original spring in compatible valve assemblies.
Performance Engine Applications: Suitable for appropriately matched turbocharged engines.
Serviceable Design: Allows replacement without purchasing a complete blow-off valve.
Universal Vehicle Application: Compatibility depends on the installed blow-off valve rather than the vehicle.
Turbosmart Part Number TS-0204-2204: Ensures accurate product identification and ordering.
Popular Performance Applications
The Turbosmart TS-0204-2204 is intended for turbocharged vehicles equipped with compatible Turbosmart Big Bubba blow-off valves.
Popular performance applications include:
Honda Civic K20 Turbo Builds: Compatible K20A, K20A2, K20Z1, and K20Z3 turbocharger systems.
Honda Civic K24 Turbo Builds: High-performance K24A and K24A2 forced-induction applications.
Acura RSX Type-S Turbo Builds: Custom K20 turbocharger installations.
Acura TSX K24 Turbo Applications: Performance K24 turbocharger systems.
Honda Accord K-Series Turbo Builds: Custom forced-induction configurations.
Honda S2000 Turbo Builds: Compatible F20C and F22C turbocharger applications.
Acura Integra Turbo Builds: B-Series and K-Series performance engines.
Honda Prelude Turbo Builds: Custom H-Series and K-Series turbocharger systems.
K20/K24 Frankenstein Turbo Builds: High-output K-Series combinations.
B16, B18, and B20 Turbo Builds: Modified B-Series forced-induction applications.
Toyota 1JZ and 2JZ Turbo Builds: Big Bubba-equipped high-horsepower applications.
Nissan RB-Series Turbo Builds: Competition turbocharger systems.
Mitsubishi Evolution Turbo Builds: Compatible aftermarket blow-off valve installations.
Subaru WRX and STI Turbo Builds: Custom Big Bubba installations.
Drag Racing Applications: Blow-off valve maintenance and spring tuning.
Roll Racing Applications: Performance blow-off valve servicing.
Dedicated Motorsport Vehicles: Compatible turbocharged engines requiring the 21 inHg Big Bubba spring.
Important: This is a universal replacement spring, not a vehicle-specific direct-fit component. Compatibility depends on the installed Turbosmart blow-off valve model and the engine's measured manifold vacuum.
Additional Information
- Manufacturer: Turbosmart
- Part Number: TS-0204-2204
- Product Name: Big Bubba Blow-Off Valve Replacement Spring
- Product Type: Blow-Off Valve Replacement / Tuning Spring
- Spring Vacuum Rating: 21 inHg
- Recommended Idle Vacuum Range: Approximately 18–21 inHg
- Spring Color: Red
- Compatible Product Series: Turbosmart Big Bubba Blow-Off Valves
- Installation Location: Internal Blow-Off Valve Spring Chamber
- Vehicle Fitment: Universal, Based on Blow-Off Valve Compatibility
- Quantity: One Replacement Spring
21 inHg Spring Rating
The TS-0204-2204 features a nominal 21 inHg spring rating.
InHg, or inches of mercury, is a unit commonly used to measure engine manifold vacuum.
The spring rating helps determine the appropriate blow-off valve configuration for a particular engine.
The correct spring allows the valve to remain properly seated while responding to changes in manifold pressure during throttle transitions.
Important: The 21 inHg specification is a vacuum-based spring rating. It does not indicate the maximum turbocharger boost pressure the blow-off valve can handle.
Recommended Manifold Vacuum Range
The red Big Bubba spring is listed for engines producing approximately 18–21 inHg of manifold vacuum at idle.
Engine vacuum varies according to several factors, including:
Engine displacement and compression.
Camshaft profile and valve overlap.
Idle speed and engine calibration.
Throttle body configuration.
Intake manifold design.
Engine operating temperature.
For accurate spring selection, measure manifold vacuum with the engine fully warmed up and operating at its normal idle speed.
Red Spring Identification
Turbosmart uses spring identification colors to distinguish between different vacuum ratings.
The TS-0204-2204 is identified as the red Big Bubba spring.
This helps simplify spring identification during blow-off valve servicing.
Always verify the spring's part number and rating rather than relying exclusively on its appearance.
Big Bubba Blow-Off Valve Compatibility
The TS-0204-2204 is designed for compatible Turbosmart Big Bubba blow-off valves.
The Big Bubba platform was developed for high-flow turbocharger applications requiring substantial compressed-air discharge capacity.
This replacement spring allows the valve's internal spring configuration to be adjusted for the engine's manifold vacuum characteristics.
It should not be assumed compatible with unrelated Turbosmart RacePort, Kompact, or PowerPort valve assemblies.
Big Bubba Spring Options
Turbosmart offers multiple spring ratings for the Big Bubba platform.
TS-0204-2201 – 7 inHg Spring
Lower vacuum spring option.
Intended for compatible engines requiring a lighter spring configuration.
TS-0204-2202 – 12 inHg Spring
Intermediate vacuum spring option.
Suitable for compatible applications requiring a 12 inHg spring.
TS-0204-2203 – 17 inHg Spring
Higher vacuum spring option.
Suitable for compatible applications requiring a 17 inHg spring.
TS-0204-2204 – 21 inHg Spring
Red spring identification.
Recommended for approximately 18–21 inHg manifold vacuum.
Intended for compatible Big Bubba blow-off valves.
Always select the spring according to the manufacturer's recommendations and the engine's actual vacuum characteristics.
Importance of Proper Spring Selection
Incorrect blow-off valve spring selection can affect valve performance.
A spring that is too stiff may prevent the valve from opening as intended when the throttle closes.
A spring that is too soft may contribute to unwanted valve movement or inconsistent sealing.
Matching the spring to the engine's operating conditions helps maintain predictable blow-off valve response.
Blow-Off Valve Operation
A blow-off valve helps release excess compressed intake air when the throttle closes.
During acceleration, the turbocharger supplies pressurized air to the engine.
When the throttle closes, pressure can accumulate in the charge piping.
The blow-off valve opens in response to the resulting pressure differential, allowing excess air to escape or recirculate according to the valve configuration.
The internal spring works with the valve's pressure-operated mechanism to determine its response.
High-Horsepower Turbocharger Applications
Big Bubba blow-off valves are commonly associated with high-flow forced-induction systems.
The TS-0204-2204 provides a replacement spring option for compatible valves used in demanding performance applications.
Spring selection should be based on measured manifold vacuum rather than engine horsepower alone.
Common Reasons for Replacement
Incorrect Spring Selection: Replaces a spring that does not match the engine's idle vacuum.
Blow-Off Valve Tuning: Adjusts the valve's spring configuration.
Replacing a Damaged Spring: Restores the intended internal spring arrangement.
Big Bubba Valve Maintenance: Provides a genuine replacement component.
Engine Modifications: Supports spring selection following changes that affect manifold vacuum.
Turbocharger System Upgrades: Allows recalibration of a compatible blow-off valve.
High-Performance Camshaft Changes: Supports adjustment for altered idle vacuum.
Inconsistent Valve Operation: Provides an appropriate replacement when spring selection is identified as the cause.
Used Blow-Off Valve Restoration: Replaces missing or incorrect internal components.
Preventative Maintenance: Supports servicing of existing Big Bubba valves.
Motorsport Applications: Provides a replacement spring for competition vehicles.
Installation Notes
Verify Valve Compatibility: Confirm that the installed blow-off valve is compatible with TS-0204-2204.
Measure Manifold Vacuum: Check the engine's actual idle vacuum before selecting the spring.
Review Turbosmart Instructions: Follow the servicing procedure for the specific Big Bubba valve.
Allow the Engine to Cool: Avoid servicing components near hot turbocharger or exhaust parts.
Remove the Blow-Off Valve if Necessary: Provide safe access to the spring chamber.
Clean the Exterior: Prevent dirt or debris from entering the valve.
Release Spring Tension Carefully: Internal springs may be compressed.
Open the Valve Assembly: Follow the manufacturer's recommended disassembly procedure.
Remove the Existing Spring: Carefully inspect the original spring.
Inspect Internal Components: Check the valve, seals, and diaphragm or piston components as applicable.
Install the Replacement Spring: Position the TS-0204-2204 correctly within the spring chamber.
Verify Spring Seating: Ensure the spring is properly aligned.
Reassemble the Valve: Follow Turbosmart's recommended procedure.
Secure the Valve Assembly: Verify that all retaining components are correctly installed.
Reinstall the Blow-Off Valve: Secure the valve to its mounting connection.
Reconnect the Pressure Reference Line: Confirm that the correct manifold pressure source is used.
Inspect for Leaks: Check the valve and reference hose connections.
Verify Idle Operation: Confirm that the valve remains properly seated.
Perform Controlled Initial Testing: Monitor blow-off valve response during throttle transitions.
Reinspect After Installation: Check for abnormal operation, leakage, or loose connections.
Important: Blow-off valve springs should be selected according to manifold vacuum and the specific valve's requirements. Do not select a spring based solely on turbocharger boost pressure.
What's Included
(1) Turbosmart Big Bubba 21 inHg Red Replacement Blow-Off Valve Spring (TS-0204-2204)
Note: This listing includes the replacement spring only. The complete blow-off valve, seals, mounting hardware, and other accessories are not included.
Maintain reliable blow-off valve operation with the Turbosmart Big Bubba 21 inHg Red Replacement Spring (TS-0204-2204).
Featuring a 21 inHg nominal vacuum rating, red spring identification, and compatibility with specified Turbosmart Big Bubba blow-off valves, this genuine replacement spring provides an effective solution for tuning or servicing high-performance turbocharger systems.
Whether maintaining a turbocharged Honda K20/K24, tuning a high-horsepower B-Series engine, or preparing a dedicated drag racing vehicle, the Turbosmart TS-0204-2204 delivers genuine replacement compatibility and dependable Turbosmart performance.
| Part Number: | TS-0204-2204 |
| Brand: | Turbosmart |
| 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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