Product Overview
Turbosmart eSG50 StraightGate50 Wastegate
The StraightGate50 eSG50 from Turbosmart is a 50mm (1.97in) butterfly valve style external wastegate for turbocharged engines. The StraightGate50 provides more flow than any conventional 60mm poppet style valve while also providing more control and almost linear response for unparalleled boost control throughout the entire operating range. This is Boost Control re-imagined!
Developed off the back of Turbosmart’s SEMA 2019 New Product Award Winning eWG range with full electronic actuation and control, the StraightGate50 features an in-house designed, CFD driven and real world validated butterfly valve style external wastegate which provides all the benefits of over two decades of boost control experience with the latest technology for truly advanced boost control strategies with virtually no limits.
The valve body is non-directional and can be installed radially through 360 degrees on the V-Band. The actuator housing can also be located in any of the 3 clocking positions for truly versatile fitment.
Thermally stable and tested to 1250°C the eSG50 is capable in the most demanding environments while providing control never before seen before via liquid cooling and the inclusion of a ceramic thermal insulating spacer between the actuator and valve body. The onboard temperature & position sensor outputs allow for advanced control strategies.
This StraightGate50 50mm Valve provides the control of a smaller 40mm valve, with flow exceeding that of a traditional 60mm valve. Teamed with Electronic Actuation, all the limitations of traditional boost control are a compromise of the past. With appropriate manifold priority, these valves can provide 100% bypass for zero boost up to maximum boost and do so faster than any valve before it - Full valve actuation can be performed in 63ms and provide an unparalleled tuning window.
Incorporating Turbosmart’s Zero-BackDrive technology means the valve consumes no current while stationary reducing overall current requirements and ability against high drive pressure levels never before seen.
Features
50mm (1.97in) Butterfly Valve
Full Electronic Control
Liquid Actuator Cooling Provision
Strap Type V-Band Clamps
User Adjustable Actuator Position
Endless Boost Control Strategies
Onboard (0-5v) Actuator Temperature Sensor
Onboard (0-5v) Valve Position Sensor
7 Wire Unterminated Flying Lead loom
Frequently Asked Questions:
What is the first rule of boost control?
Ensure you have an over-boost cut-out. This is a safety feature built into basically all factory, aftermarket & programmable ECU’s. You can never be too careful. Make sure it is set at a sensible & reasonable limit. Increasing the boost will put more load on your engine and there are other tune related factors you must consider. If in any doubt, speak with a professional tuner/calibrator.
How fast is the eSG50 StraightGate50?
Fast. Full Valve Actuation can be achieved in 63ms.
What do I need to do to Control it?
You will need a programmable ECU (Engine Control Unit) and a ‘High Current’ (20Amp) output H-Bridge output. This can be done on some ECU’s (speak with your manufacturer) or, via an external H-Bridge module. The Turbosmart BlackBox is available as an external driver which can be controlled via recalibrated/programmable factory ECU’s (Via traditional PWM boost control output) or with a programmable aftermarket ECU via PWM, 0-5v Analogue output or with CAN based override.
Can I rotate the Actuator Housing?
Yes. There are 3 clocking options to choose from. The valve body itself is also rotatable on the V-band axis and is non-directional so you have huge flexibility with fitment.
What Spring Options does the eSG50 have?
Just the one - None. The Turbosmart eWG series is fully adjustable without the need for springs. It can actuate against extreme levels of drive and backpressure and does so without any springs at all. There is nothing to change, ever. IT also features our ‘Zero BackDrive’ technology to further bolster its ability against high drive pressures. This means the largest tuning window possible with no minimum boost pressure limitations of traditional wastegate systems.
