This quick guide explains the basic set-up for
your Turbosmart e-Boost2 boost controller.
WIRING YOUR E-BOOST2
INSTALLING YOUR E-BOOST2
e Boost2 Quick Guide
The e-Boost2 must be connected to a 12 volt negative earth electrical system.
All electrical connections must be soldered.
Refer to the following table and diagram for detail on wiring the e-Boost2.
Fuse Holder
- 5 amps
Basic e-Boost2 Wiring Diagram
Yellow Wire:
To 3.5 - 12V squarewave
(RPM) signal from ECU or if using a coil,
via a tach adapter
Black Wire:
To chassis, earth,
ground or negative
terminal of battery
Brown and Grey Wires:
To Boost Control Solenoid
(Polarity not important)
Boost Control Solenoid
8 Pin plug
Red Wire:
To Ignition
Ignition Switch
CONNECT TO
+12 Volts switched through ignition - Connect via 5 Amp fuse supplied
Chassis, earth, ground, or negative battery terminal
Solenoid Wire 1 - Connect using wire supplied - Polarity not important
Solenoid Wire 2 - Connect using wire supplied - Polarity not important
RPM Signal from ECU or Negative Terminal of an Ignition Coil
.
Auxiliary Output - For Advanced Applications Only - See Full Instructions
.
External Point Switching - For Advanced Applications Only - See Full Instructions
External Point Switching - For Advanced Applications Only - See Full Instructions
WIRE
RED
BLACK
BROWN
GREY
YELLOW
WHITE
GREEN
ORANGE
Solenoid
Port 1 of solenoid vent
to atmosphere
Pressure only source to
Port 3 of solenoid
Port 2 of solenoid
to actuator
Actuator
WARNING! Changing connection methods can cause a higher than expected
increase in boost pressure.
Turbosmart recommends resetting your boost controller to
its minimum setting and measuring the base line boost pressure of the new setup,
before increasing your boost again.
Note:
If your vehicle is fitted with a factory boost control solenoid, you must disconnect
the hoses that run from the solenoid to the pressure source and from the solenoid to the
wastegate actuator. Leave the solenoid plugged into the wiring loom so that the ECU is
not affected.
Note: Do not re-use factory vacuum hoses.
Some factory hoses have a small
restrictor fitted inside them, if the factory hoses are reused over boosting or boost
spiking may occur.
Secure all connections with hose clamps.
Note:
The e-Boost2 cannot be used to obtain a boost pressure lower than the
wastegate actuator’s mechanical spring pressure setting.
The following are basic connection methods. For more advanced methods, see
the full instructions.
External wastegate
Bottom port of
wastegate to
port 2 of solenoid
Top port vent to
atmosphere
Port 1 of solenoid
vent to atmosph
ere
Pressure only to
Port 3 of s
olenoid
Basic single internal wastegate setup
•
Port (1): Vents pressure from the solenoid. Connect this hose to the intake
side of the turbo, between the air cleaner and the inlet of the turbocharger.
Otherwise connect a short piece of the silicon hose and face the vent downwards
to stop water or debris entering the solenoid.
•
Port (2): To the internal wastegate actuator
•
Port (3): T
o pressure only source
Basic single external wastegate setup
•
Port (1): Vents pressure from the solenoid. Connect this hose to the intake
side of the turbo, between the air cleaner and the inlet of the turbocharger.
Otherwise connect a short piece of the silicon hose and face the vent
downwards to stop water or debris entering the solenoid.
•
Port (2): To the bottom port of the wastegate
•
Port (3): To pressure only source
If you are unable to achieve your desired boost pressure, i.e. boost level is too low, or
not controllable,it is normally due to exhaust manifold backpressure forcing the internal
wastegate to open. To increase your boost pressure further, it is recommended that the
wastegate/actuator spring be changed to a spring which is closer to the desired boost
pressure. Alternately trial a two-port connection method.
For two-port connection method, see the full instruction manual.
A single solenoid can be used to control twin wastegates in a twin-turbo setup. However,
Turbosmart recommends twin solenoids are used in twin-turbo setups to reduce the
length of the pressure hoses to aid in control and response of the wastegates.
For twin solenoid connection methods, see the full instruction manual.
