Turbosmart BOOST CONTROLLERS – ELECTRONIC - e-Boost2 (2005-current) – Complete User Manual - Manual (Page 13)

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Two port, single 4 port solenoid, single turbo connection Method (3)
(For obtaining a wide range of boost pressures e.g. 5 – 40 PSI. This connection method has varying degrees of success depending on
turbo system)
 Port A of solenoid to Top port of wastegate
 Port B of solenoid to Bottom port of wastegate
 EX port of solenoid vent to atmosphere
 IN port of solenoid to Pressure only source
Two port, single 4 port solenoid, twin turbo connection Method (3)
(For obtaining a wide range of boost pressures e.g. 5 – 40 PSI on a straight configuration engine. This connection method has varying
degrees of success depending on turbo system)
 Port A of solenoid to Top port of wastegates
 Port B of solenoid to Bottom port of wastegates
 EX port of solenoid vent to atmosphere
 IN port of solenoid to Pressure only source
Two port, twin 4 port solenoid, twin turbo connection Method (3)
(For obtaining a wide range of boost pressures e.g. 5 – 40 PSI on a V configuration engine. This connection method has varying
degrees of success depending on turbo system)
 Port A of solenoid to Top port of wastegates
 Port B of solenoid to Bottom port of wastegates
 EX port of solenoid vent to atmosphere
 IN port of solenoid to Pressure only source
 Join the wires from both solenoids together (polarity not important) and then connect them to the brown and grey wires of the
wiring loom

4 Port solenoid
EX Port of solenoid vent
to atmosphere
IN Port of solenoid to
pressure only source
Turbocharger
Port A of solenoid to top port of
wastegate
Wastegate Port B of solenoid to
bottom port of wastegate
4 Port solenoid
Port A of solenoid to top port of
wastegates via tee piece
Port B of solenoid to
bottom port of wastegates
via tee piece
EX Port of solenoid vent
to atmosphere
IN Port of solenoid to
pressure only source
Plug pressure port on
one turbo only
Port B of solenoid to
bottom port of wastegate
Port A of solenoid to top port of
wastegates via tee piece
EX Port of solenoid
vent to atmosphere
IN Port of solenoid to
pressure only source
Join wires