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Product Details
The Turbosmart GenV RacePort 50mm Blow-Off Valve – Blue, Female Flange (TS-0204-1141) is a high-performance atmospheric blow-off valve engineered for demanding turbocharged applications requiring exceptional airflow capacity, fast valve response, and dependable boost pressure relief.
Featuring a 50mm valve design, blue anodized billet aluminum construction, and female mounting flange configuration, the GenV RacePort combines Turbosmart's advanced blow-off valve technology with a compact, lightweight design suitable for high-horsepower street and motorsport applications.
The RacePort series is recognized for its exceptional flow capacity, delivering over 330 CFM through its 2-inch inlet while maintaining a compact footprint. According to Turbosmart, the RacePort design is approximately 50% lighter and 25% smaller than comparable competing blow-off valves.
The TS-0204-1141 features Turbosmart's Boost-Balance Technology, which helps maintain a positive seal under boost pressure while allowing rapid valve opening during throttle transitions. Its precision-machined valve components, high-temperature silicone Nomex diaphragm, and positive-sealing valve seat work together to deliver consistent operation in demanding forced-induction environments.
This particular version incorporates a female flange mounting system designed to accommodate compatible competitor-style blow-off valve flanges, making it an excellent option for enthusiasts upgrading an existing blow-off valve installation without replacing compatible charge piping or mounting hardware.
Finished in a vibrant blue anodized coating, the TS-0204-1141 delivers both high-performance functionality and a distinctive appearance.
Whether upgrading a turbocharged Honda K20/K24, replacing an existing 50mm competitor-style blow-off valve, or building a high-boost motorsport application, the Turbosmart GenV RacePort TS-0204-1141 provides exceptional airflow, reliable boost pressure relief, and genuine Turbosmart engineering.
Important: This is the female flange version of the GenV RacePort. A weld-on mounting flange is not included.
Features
Genuine Turbosmart GenV RacePort: High-performance atmospheric blow-off valve designed for demanding forced-induction applications.
50mm Valve Design: Provides high airflow capacity for performance turbocharger systems.
Over 330 CFM Flow Capacity: Engineered to rapidly discharge excess compressed intake air.
2-Inch Inlet: Large inlet design supports high-volume pressure relief.
Blue Anodized Finish: Provides a distinctive performance appearance.
6000-Series Billet Aluminum Construction: Combines strength, durability, and lightweight design.
Female Flange Mounting System: Designed for compatible competitor-style blow-off valve flanges.
Quick-Release Aluminum V-Band Collar: Allows convenient valve removal and servicing.
Boost-Balance Technology: Helps maintain sealing performance as boost pressure increases.
Positive-Sealing Valve Seat: Reduces unwanted pressure leakage when the valve is closed.
MIL-SPEC Hard-Anodized Valve Guide and Stem: Provides durable internal components for repeated operation.
High-Temperature Silicone Nomex Diaphragm: Designed for demanding turbocharger operating conditions.
Twin 1/8" NPT Reference Ports: Offers flexibility when routing pressure reference connections.
Fast Valve Response: Supports rapid pressure relief during throttle transitions.
Atmospheric Discharge: Releases compressed air directly into the atmosphere.
Installed Blue Spring: Supplied with a spring rated for approximately -18 to -14 inHg.
Compact Construction: Approximately 25% smaller than comparable competing designs, according to Turbosmart.
Lightweight Design: Approximately 50% lighter than comparable competing blow-off valves, according to Turbosmart.
Optional Valve Position Sensor Upgrade: Supports compatible Turbosmart valve position monitoring accessories.
Serviceable Construction: Replacement springs, diaphragms, and other components are available separately.
Universal Performance Application: Suitable for compatible turbocharged systems using the required mounting configuration.
Turbosmart Part Number TS-0204-1141: Ensures accurate product identification and ordering.
Popular Performance Applications
The Turbosmart TS-0204-1141 is a universal performance blow-off valve suitable for turbocharged vehicles equipped with compatible female-flange mounting arrangements.
Popular applications include:
Honda Civic K20 Turbo Builds: K20A, K20A2, K20Z1, and K20Z3 forced-induction systems.
Honda Civic K24 Turbo Builds: K24A and K24A2 high-performance turbocharger applications.
Acura RSX Type-S Turbo Builds: Custom K20 turbocharger installations.
Acura TSX K24 Turbo Applications: High-boost K24 forced-induction systems.
Honda Accord K-Series Turbo Builds: Custom turbocharger and charge piping installations.
Honda S2000 Turbo Builds: F20C and F22C performance turbocharger systems.
Acura Integra Turbo Builds: B-Series and K-Series forced-induction applications.
Honda Prelude Turbo Builds: H-Series and K-Series turbocharger configurations.
K20/K24 Frankenstein Turbo Builds: High-horsepower K-Series performance applications.
B16, B18, and B20 Turbo Builds: Custom atmospheric blow-off valve installations.
Subaru WRX and STI Turbo Builds: Compatible aftermarket charge piping configurations.
Mitsubishi Evolution Turbo Builds: High-performance forced-induction systems.
Nissan SR20DET and RB-Series Turbo Builds: Custom high-flow blow-off valve installations.
Toyota 1JZ and 2JZ Turbo Builds: High-horsepower street and motorsport applications.
Drag Racing Applications: Rapid pressure relief in demanding turbocharger systems.
Roll Racing Applications: High-flow blow-off valve performance during repeated throttle transitions.
Track and Motorsport Vehicles: High-performance atmospheric boost pressure relief systems.
Important: This is a universal aftermarket component, not a vehicle-specific direct-fit blow-off valve. Compatibility depends on the charge piping, mounting flange, available clearance, and engine management configuration.
Additional Information
- Manufacturer: Turbosmart
- Part Number: TS-0204-1141
- Product Name: GenV RacePort 50mm Blow-Off Valve – Female Flange
- Product Type: Atmospheric Blow-Off Valve
- Product Series: GenV RacePort
- Valve Size: 50mm
- Inlet Size: 2 Inches
- Flow Capacity: Over 330 CFM
- Valve Construction: 6000-Series Billet Aluminum
- Finish: Blue Anodized
- Mounting Configuration: Female Flange / Compatible Competitor-Style Flange
- V-Band Collar: Quick-Release Aluminum
- Valve Guide and Stem: MIL-SPEC Hard-Anodized
- Diaphragm: High-Temperature Silicone Nomex
- Valve Technology: Boost-Balance Technology
- Sealing Design: Positive-Sealing Valve Seat
- Pressure Reference Ports: Dual 1/8" NPT
- Installed Spring: Blue
- Installed Spring Rating: -18 to -14 inHg
- Discharge Configuration: Atmospheric / Vent-to-Atmosphere
- Valve Position Sensor: Optional Upgrade
- Vehicle Fitment: Universal, Based on Mounting and System Compatibility
- UPC: 9329677021479
GenV RacePort 50mm High-Flow Design
The GenV RacePort is engineered to discharge large volumes of compressed intake air quickly and efficiently.
Its 50mm valve configuration and 2-inch inlet support airflow exceeding 330 CFM.
This high-flow design is particularly useful for turbocharger systems producing substantial compressed airflow, where a smaller blow-off valve may not provide sufficient pressure relief.
The RacePort's internal flow structure is designed to minimize restriction while maintaining compact overall dimensions.
Female Flange Mounting Configuration
The TS-0204-1141 features Turbosmart's female flange configuration.
Unlike the standard RacePort versions supplied with a dedicated weld-on mounting flange, this model is designed to interface with compatible competitor-style mounting systems.
This allows enthusiasts to upgrade certain existing blow-off valve installations while retaining compatible mounting hardware.
Important: Not all 50mm blow-off valve flanges are interchangeable. Confirm the existing flange dimensions, sealing arrangement, and clamp compatibility before ordering.
A weld-on flange is not included with TS-0204-1141.
Boost-Balance Valve Technology
Turbosmart's Boost-Balance Technology is designed to help the valve remain securely closed under boost pressure.
As pressure increases, the internal valve arrangement helps maintain sealing force, reducing the potential for unwanted boost leakage.
When the throttle closes and the appropriate pressure differential develops, the valve opens to discharge excess compressed air.
This combination of sealing performance and responsive operation helps protect the turbocharger system during rapid throttle transitions.
High-Temperature Silicone Nomex Diaphragm
The RacePort incorporates a high-temperature silicone Nomex diaphragm designed for repeated movement under demanding operating conditions.
The diaphragm responds to pressure changes between the charge piping and reference source, allowing the valve to open and close as required.
Its construction is intended to withstand the repeated pressure cycling associated with performance turbocharger systems.
MIL-SPEC Hard-Anodized Valve Components
The GenV RacePort features a MIL-SPEC hard-anodized valve guide and stem.
These components are engineered to provide durability and consistent valve movement during repeated operation.
The precision-machined internal arrangement helps maintain smooth operation and reliable pressure relief.
Positive-Sealing Valve Seat
The RacePort's positive-sealing valve seat is designed to minimize unwanted pressure leakage when the valve is closed.
A properly sealing blow-off valve helps the turbocharger system maintain its intended boost pressure.
This is especially important for performance applications where consistent boost delivery is essential.
Twin 1/8" NPT Reference Ports
The TS-0204-1141 features two 1/8" NPT pressure reference ports.
These ports provide flexibility when routing the valve's pressure reference plumbing.
The appropriate port arrangement depends on the installation and Turbosmart's recommended configuration.
Unused ports must be sealed according to the manufacturer's instructions.
Installed Blue Spring – -18 to -14 inHg
The TS-0204-1141 is supplied with Turbosmart's blue RacePort spring installed.
This spring is rated for an operating vacuum range of approximately -18 to -14 inHg.
The spring is selected to support proper valve operation under the appropriate engine vacuum conditions.
Different engine configurations may require alternative spring rates.
Turbosmart offers replacement RacePort springs separately for applications requiring different operating characteristics.
Important: The spring's vacuum rating is not a turbocharger boost pressure limit.
Atmospheric Blow-Off Valve Operation
The TS-0204-1141 is an atmospheric blow-off valve.
When the throttle closes, the valve releases excess compressed intake air directly into the atmosphere.
This produces the characteristic blow-off valve discharge sound commonly associated with performance turbocharged vehicles.
Atmospheric discharge may affect drivability on certain mass-airflow-based engine management systems that expect discharged air to be recirculated.
Verify compatibility with the vehicle's fueling and airflow measurement strategy before installation.
Compact and Lightweight Construction
Turbosmart designed the RacePort to deliver high airflow capacity without requiring an excessively large valve assembly.
According to the manufacturer, the RacePort is approximately:
50% lighter than comparable competing blow-off valves.
25% smaller than comparable competing blow-off valves.
These characteristics make the valve attractive for performance engine bays where available space and component weight are important considerations.
Quick-Release V-Band Collar
The RacePort features a quick-release aluminum V-band collar.
This design allows the valve to be removed for inspection, servicing, or spring changes without disassembling the surrounding charge piping.
The collar must be properly secured before operating the turbocharger system.
Optional Valve Position Sensor Upgrade
Turbosmart offers compatible valve position sensor accessories for certain GenV RacePort configurations.
These components can provide additional information about valve operation for diagnostic or motorsport data acquisition purposes.
The TS-0204-1141 does not include a valve position sensor as standard equipment.
Female Flange vs. Standard RacePort
TS-0204-1141 – GenV RacePort 50mm Female Flange, Blue
Blue anodized finish.
50mm atmospheric blow-off valve.
Female flange mounting configuration.
Designed for compatible competitor-style flange systems.
Over 330 CFM airflow capacity.
Blue spring installed.
No weld-on mounting flange included.
TS-0204-1131 – GenV RacePort 50mm Standard, Blue
Blue anodized finish.
50mm atmospheric blow-off valve.
Standard Turbosmart mounting configuration.
Intended for installations using the corresponding Turbosmart weld-on mounting arrangement.
Over 330 CFM airflow capacity.
Blue spring installed.
Select the version that matches the existing or planned charge piping mounting arrangement.
Available Female Flange Color Options
Turbosmart offers the GenV RacePort female flange configuration in several finishes.
TS-0204-1141 – Blue
TS-0204-1142 – Black
TS-0204-1143 – Purple
TS-0204-1144 – Red
These versions share the same general RacePort female flange design while offering different exterior finishes.
Important Installation Considerations
The TS-0204-1141 is intended for compatible turbocharged systems requiring a high-flow atmospheric blow-off valve.
Before installation, verify:
Mounting flange compatibility.
V-band collar compatibility.
Available engine bay clearance.
Pressure reference hose routing.
Appropriate spring selection.
Charge piping construction.
Engine management compatibility with atmospheric discharge.
This valve is not a direct replacement for every factory electronic diverter valve.
Common Reasons for Replacement
Insufficient Blow-Off Valve Flow: Upgrades smaller valves that cannot adequately relieve pressure in a high-flow turbocharger system.
Damaged Existing Blow-Off Valve: Replaces a leaking or malfunctioning valve.
High-Boost Turbocharger Upgrades: Provides a performance-oriented pressure relief solution.
Competitor-Style Flange Conversion: Allows installation on compatible existing mounting systems.
Turbocharger Compressor Surge Concerns: Supports proper pressure relief during throttle transitions.
Improved Boost Sealing: Replaces a valve experiencing unwanted pressure leakage.
Performance Engine Builds: Supports custom forced-induction applications.
Drag Racing Applications: Provides high-flow atmospheric discharge capability.
Roll Racing Applications: Supports rapid pressure relief during repeated throttle changes.
Motorsport Maintenance: Upgrades or replaces existing blow-off valve components.
Engine Bay Appearance: Adds a distinctive blue anodized performance component.
Turbosmart Performance Upgrade: Provides genuine RacePort construction and serviceability.
Installation Notes
Verify Mounting Compatibility: Confirm that the existing flange is compatible with the TS-0204-1141 female flange design.
Review Turbosmart Instructions: Read the GenV RacePort installation documentation before beginning.
Allow the Engine to Cool: Avoid working around hot turbocharger and exhaust components.
Locate the Installation Position: Select an appropriate location on the pressurized charge piping.
Inspect the Existing Mounting Flange: Check for damage, contamination, or incorrect dimensions.
Verify Available Clearance: Ensure the valve has sufficient room for operation and servicing.
Inspect the RacePort Valve: Confirm that the valve and sealing components are undamaged.
Check the Installed Spring: Verify that the blue spring is appropriate for the engine's operating vacuum conditions.
Inspect the Mounting Seal: Ensure the required sealing components are correctly positioned.
Position the Blow-Off Valve: Align the RacePort with the compatible mounting flange.
Install the V-Band Collar: Secure the valve using the supplied collar assembly.
Verify Collar Engagement: Ensure the valve is properly retained before applying boost pressure.
Connect the Pressure Reference Hose: Route the appropriate reference connection according to Turbosmart's instructions.
Seal Unused Reference Ports: Follow the manufacturer's recommended port configuration.
Inspect Hose Routing: Keep pressure reference hoses away from excessive heat and moving components.
Verify Valve Orientation: Ensure the installation does not interfere with surrounding components.
Perform a Boost Leak Test: Confirm that the valve remains sealed when closed.
Check Valve Operation: Verify proper opening and closing response.
Monitor Initial Engine Operation: Check for abnormal idle behavior, pressure leakage, or incorrect valve response.
Perform Controlled Initial Testing: Confirm proper pressure relief during throttle transitions.
Reinspect the Installation: Check the V-band collar, pressure reference connections, and mounting seal after initial operation.
Important: Incorrect blow-off valve installation or spring selection can contribute to boost leaks, drivability problems, or inadequate pressure relief. Follow Turbosmart's installation instructions and verify compatibility with the vehicle's engine management system.
What's Included
(1) Turbosmart GenV RacePort 50mm Blow-Off Valve – Blue, Female Flange (TS-0204-1141)
(1) Blue RacePort Spring, rated -18 to -14 inHg (preinstalled)
(1) V-Band Collar Assembly
1/8" NPT Vacuum Reference Fittings
Turbosmart Decal
Note: This listing includes the female flange RacePort blow-off valve assembly and manufacturer-supplied accessories. A weld-on mounting flange is not included and must be sourced separately if required.
Upgrade your turbocharger pressure relief system with the Turbosmart GenV RacePort 50mm Blow-Off Valve – Blue, Female Flange (TS-0204-1141).
Featuring over 330 CFM airflow capacity, 6000-series billet aluminum construction, Boost-Balance Technology, a high-temperature silicone Nomex diaphragm, and a quick-release V-band collar, this high-performance atmospheric blow-off valve delivers exceptional flow capacity and reliable operation in demanding forced-induction applications.
With its blue anodized finish and competitor-compatible female flange mounting design, the TS-0204-1141 is an excellent choice for enthusiasts upgrading an existing blow-off valve installation or building a high-horsepower turbocharged Honda K20/K24.
For dependable pressure relief, precision engineering, and proven motorsport performance, choose the Turbosmart GenV RacePort TS-0204-1141.
| Part Number: | TS-0204-1141 |
| Brand: | Turbosmart |
| Color: | Blue |
| Size: | 50mm |
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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