WG38 Ultragate 38 7psi
TS-0501-1101

Wastegates & IWGs
A wastegate is a valve which controls the flow of exhaust gas from an engine to the turbocharger. By controlling the flow of exhaust gas to the turbine of the turbocharger, the wastegate can control the boost pressure provided by the turbocharger to the engine. The wastegate needs to be correctly sized for the engine and turbocharger combination to give the end user adequate control on boost pressure.

There are two types of wastegates: external wastegates, and actuator driven internal wastegates.

Wastegates – Internal Wastegate Actuators
An internal wastegate has the wastegate valve is built into the turbine housing. The wastegate valve is controlled by an actuator which consists of a spring and a sealed chamber. The sealed chamber of the actuator is connected to a pressure only source normally on the compressor cover of the turbocharger.

Wastegates – External
The most common reason for investing in an external wastegate is fitting an after-market turbo or better control of the boost and consequently the power output of your engine. Additionally, most large frame turbochargers are not equipped with internal wastegate systems. Most tuners will recommend an external wastegate for any engine producing 400hp or more.

Description:
The Turbosmart Ultra-Gate38 is a 38mm external wastegate for street and racing applications, specifically for classic 2 bolt flanges (71mm spacing). Designed with minimum size and maximum flow in mind, the new Ultra-Gate38 is smaller and lighter than previous models & features Turbosmart’s unique locking collar design for quick and easy spring changes (3psi – 26psi option avaialble). Features a one-piece Stainless Steel Valve for maximum reliability and our proven Silicon Nomex Diaphragm.