Turbosmart WASTEGATES – EXTERNAL - Ultra-Gate38 (with locking ring) - Manual (Page 7)

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7
e-Boost 2 connection methods
Turbosmart recommends using the Ultra-gate38 in conjunction with the Turbosmart e-Boost.
The first method of installation is a one port connection. If the desired boost level is not achieved i.e. boost level is too low, or not
controllable, it is recommended that the wastegate spring be changed to a spring which is closer to the desired boost pressure or to trial
a 2 port connection method.
There are 3 different 2 port connection methods that can be trialled to achieve different results. The 2 port method (1) can be used if
there is high exhaust manifold back pressure forcing the valve open. The 2 port method (2) allows the user to achieve the maximum
boost pressure their turbo system is capable of. If a wide range of boost pressures is desired i.e. 5 – 40 PSI, a 2 port connection with a
4 port solenoid (sold separately – TS-0301-2003) might be needed.
All unused ports and vents must have the pressure nipple installed and a piece of silicon connected and routed to an area which is
shielded from dust and water.
Single port connection Method
 Port 1 of solenoid vent to atmosphere
 Port 2 of solenoid to bottom port of wastegate
 Port 3 of solenoid to Pressure only source
*NOTE: An increase in your minimum boost pressure is expected when using any of the 2 port connection methods. Ensure all boost
set point values and gate pressure values are set to Zero and measure the new minimum boost pressure achieved by this method
before increasing your Boost Set Point values.
Two port connection Method (1) (For controlling boost on a turbo system with high back pressure)
 Connect the bottom port of the wastegate and Port 1 of the solenoid to a Pressure only source
 Port 2 of the solenoid to the top port of the wastegate
 Port 3 of solenoid vent to atmosphere
External wastegate
Bottom port of
wastegate to port 2
of solenoid
Top port vent to
atmosphere
Turbocharger
Port 1 of solenoid
vent to atmosphere
Pressure only to Port
3 of solenoid
Wastegate
Port 2 of solenoid to top
port of wastegate
Solenoid
Port 1 of solenoid to pressure
only source
Tee Piece
Port 3 of solenoid vent
To atmosphere
Bottom port of wastegate
To pressure only source
Pressure only source
Turbocharger