Turbosmart Electronic StraightGate40 External Wastegate
Fits Most Models
TS-0563-1002
Overview:
The Turbosmart Electronic StraightGate40 is a cutting-edge butterfly-style external wastegate designed for vehicles with tight engine bay spaces. As the smallest of its kind, it offers exceptional boost control and flow efficiency, making it ideal for performance enthusiasts seeking precise and reliable boost management. This wastegate delivers nearly linear control across the entire operating range, enhancing your vehicle’s turbo response and drivability.
Engineered for those who demand advanced electronic actuation without the complexity of traditional reference hoses, springs, or diaphragms, the StraightGate40 uses a servo motor and Turbosmart’s zero-back drive gearbox for stable, low-current operation even under high exhaust pressures. Whether you’re tuning for street performance or track use, this wastegate provides a broad tuning window from zero boost to maximum boost levels.
Key Features:
The Turbosmart StraightGate40 combines innovative design and premium materials to deliver superior performance and durability. Key features include:
- 40mm (1.57") butterfly-style zero-offset valve for maximum flow and control
- Exceptional flow capacity of 217.4 CFM (6.16 m³/min), supporting high-performance turbo setups
- Stainless steel butterfly and shaft constructed from 630 stainless steel for strength and corrosion resistance
- Main body made from 347 stainless steel, ensuring durability under extreme conditions
- Heat-treated 431 stainless steel V-band clamps for secure, leak-free mounting
- 360-degree mounting options on the V-band for flexible installation
- Clock-able actuator position with three 120-degree options to suit various setups
- Full electronic actuation via dual H-bridge input, eliminating the need for traditional mechanical components
- Onboard analog sensors for actuator temperature and valve position (0-5V output)
- Onboard digital valve position sensor with PWM output for precise monitoring
- 7-wire unterminated flying lead loom for versatile wiring integration
- Liquid cooling system for actuator stability during prolonged high-temperature operation
Construction & Design:
The StraightGate40 is engineered from the ground up with a focus on flow efficiency and control precision. Its zero-offset butterfly valve pivots centrally, balancing exhaust drive pressure equally on both halves of the valve. This self-balancing design reduces the effort required to actuate the valve against high drive pressures, enabling a wider tuning range regardless of actuation method.
Unlike traditional poppet-style wastegates that force exhaust gases to turn 90 degrees, the StraightGate40’s straight-through butterfly valve design allows for smoother exhaust flow, improving overall efficiency and responsiveness. The use of high-grade stainless steel materials throughout ensures long-lasting durability and resistance to harsh exhaust conditions.
Installation & Fitment:
The Turbosmart Electronic StraightGate40 is designed to fit most turbocharged vehicles, making it a versatile upgrade for a wide range of applications. Its compact size is ideal for tight engine bays where space is limited. The wastegate mounts using heat-treated stainless steel V-band clamps with 360-degree rotation options, allowing for flexible positioning to suit your specific setup.
Installation requires careful wiring of the electronic actuator and sensors, but the included 7-wire flying lead loom and installation guide simplify the process. No cutting, drilling, or special tuning is required to fit the wastegate itself, though electronic boost control tuning will be necessary to optimize performance.
What's Included:
- Electronic StraightGate40 external wastegate assembly
- Heat-treated 431 stainless steel V-band clamps
- 7-wire unterminated flying lead loom for electronic connections
- Installation guide for proper setup and wiring
Ideal For:
This wastegate is perfect for performance enthusiasts and tuners who require precise boost control in compact engine bays. It suits street and track vehicles that benefit from advanced electronic boost management and high flow capacity. The StraightGate40 is especially valuable for setups where traditional wastegates are too large or lack the fine control needed for modern turbocharged engines.
