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Product Details
| Part Number: | TS-0551-1312 |
| Brand: | Turbosmart |
| Spring Pressure: | 35 psi |
| Wastegate Size: | 38mm |
| CARB Approved: | No |
Take precise control of extreme boost applications with the Turbosmart TS-0551-1312 GenV UltraGate38HP High-Pressure External Wastegate. Designed specifically for turbo systems requiring unusually high base wastegate pressure, this specialized version of Turbosmart's compact UltraGate38 combines a 38mm valve, 2-bolt mounting flange, and high-pressure actuator capable of base pressures up to 50 PSI.
The TS-0551-1312 arrives configured with a 35 PSI base spring pressure, making it an excellent choice for high-boost racing applications where a conventional low-pressure wastegate actuator may not provide sufficient mechanical boost control. Additional reference-signal manipulation can provide even greater boost-control flexibility when used with an appropriate electronic or pneumatic boost-control system.
Turbosmart developed its GenV wastegate platform using CFD optimization and in-house flow validation, with particular attention paid to exhaust flow, thermal management, fatigue resistance, and longevity. Premium materials including a high-temperature 347 stainless-steel body, Nitronic 60 valve guide, and 17-7 PH stainless-steel springs help the UltraGate38HP withstand the severe operating environment found in high-output turbo systems.
Features
- Genuine Turbosmart GenV UltraGate38HP external wastegate
- Turbosmart part number TS-0551-1312
- 38mm external wastegate
- High-pressure HP actuator
- Supplied with a 35 PSI base spring configuration
- Capable of spring configurations providing up to 50 PSI base pressure
- Compact 2-bolt mounting design
- Designed specifically for high-boost turbocharged applications
- Black actuator finish
- CFD-optimized internal design
- In-house bench-validated flow performance
- Engineered for exceptional thermal performance
- High fatigue resistance for demanding motorsport use
- High-temperature 347 stainless-steel body
- Nitronic 60 valve guide
- 17-7 PH stainless-steel springs
- SS316 valve seat
- Turbosmart's unique collar-locking actuator system
- Rotatable and clockable actuator housing
- Variable actuator cap and base provide flexible reference-hose routing
- Multiple 1/8" NPT reference ports
- Provision for optional liquid cooling of the actuator
- Compact packaging makes it suitable for tight turbo-system installations
- Direct-fit GenV upgrade for corresponding Gen4 Turbosmart UltraGate mounting arrangements
- Suitable for high-horsepower street and competition turbo systems
- Excellent choice for drag racing, roll racing, circuit racing, time attack, and other motorsport applications
- Universal application for properly configured turbo systems
- Includes 10 PSI and 25 PSI springs, used together for the supplied 35 PSI configuration
- Includes SS316 valve seat
- Includes mounting bolts and nuts
- Includes locking collar tool
- Includes hose-tail and blanking fittings
- Includes Turbosmart decal
Purpose-Built for High Boost
- The biggest distinction between TS-0551-1312 and a conventional UltraGate38 is its high-pressure actuator. Turbosmart designed the HP series to provide mechanical base boost pressures as high as 50 PSI, giving serious race applications significantly more spring-pressure capability than a standard external wastegate.
- The supplied spring arrangement sets the wastegate at approximately 35 PSI base pressure before additional boost-control strategies are applied. Because of this exceptionally high base pressure, this model is intended for engines and turbo systems specifically built and tuned to operate at these boost levels.
Compact 2-Bolt UltraGate38 Design
- Unlike the larger V-band-mounted wastegates in Turbosmart's lineup, the UltraGate38 retains the traditional 2-bolt mounting arrangement. This makes the TS-0551-1312 particularly attractive for existing manifolds already configured for a 38mm 2-bolt external wastegate. Turbosmart's technical documentation specifies a 38.1mm / 1.5-inch inlet pipe diameter for the WG38 installation.
- The GenV version retains compatibility with the established mounting orientation while substantially updating the actuator and internal design compared with the previous generation.
Advanced GenV Construction
- Extreme exhaust temperatures place tremendous stress on an external wastegate. Turbosmart uses a 347 stainless-steel main body and Nitronic 60 valve guide to provide the thermal durability required in these conditions. The actuator can also be liquid-cooled when required, although liquid cooling is an optional feature rather than a requirement for every installation.
- The actuator can be rotated to accommodate different manifold and engine-bay layouts, while the variable cap and base allow the boost-reference connections to be positioned for cleaner hose routing.
Installation Note
- The TS-0551-1312 is a universal high-pressure external wastegate and requires a compatible 38mm 2-bolt wastegate flange. Turbosmart's documentation specifies 38.1mm / 1.5-inch inlet and outlet pipe sizing for this model.
- Because this version comes configured for approximately 35 PSI minimum mechanical boost pressure, it should only be used on an engine and turbocharger combination designed, fueled, and professionally tuned for that level of boost. Installing an electronic boost controller cannot command boost below the wastegate's mechanical base pressure.
For serious high-boost applications requiring substantially more actuator pressure than a conventional wastegate can provide, the Turbosmart TS-0551-1312 GenV UltraGate38HP combines a compact 38mm package, 35 PSI supplied spring configuration, up-to-50-PSI HP actuator, premium high-temperature construction, and the flexibility of Turbosmart's GenV architecture.
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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