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Instruction Manual  
E-Boost Street 40PSI  
Electronic boost controller  
TS-0302-1002  
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BEFORE YOU START IMPORTANT NOTES  
Turbosmart recommends that your E-Boost Street is fitted by an appropriately qualified technician.  
Consult your local tuning specialist before setting your boost pressure as setting boost beyond your engines capability can result in  
severe engine damage or failure  
Turbosmart recommends that the engines Air/Fuel ratio is checked once the desired boost pressure is set. Any increase in boost  
pressure can cause the engine to run lean resulting in severe engine damage or failure  
Turbosmart recommends that the E-Boost Street is not used in conjunction with any type of “Draw Through” induction System.  
Turbosmart recommends that boost pressure is set using a Dynamometer and not on public roads.  
The E-Boost Street may not be able to completely compensate for a drop in boost pressure at high RPM due to the turbocharger  
operating beyond its maximum efficiency range i.e. incorrect turbocharger sizing or excessive exhaust backpressure.  
The E-Boost Street cannot compensate for increases in boost pressure at high RPM due to inadequate waste gate flow capacity;  
the turbo system must maintain a steady base boost curve before you start using a boost controller.  
The E-Boost Street cannot be used with external waste gates that are in a poor, worn or non-serviceable condition.  
For best results your turbocharger should be correctly sized for your application.  
Erratic operation of electronic parts can be caused by Electro Magnetic Interference (EMI). EMI can be generated by aftermarket  
ignition systems such as CDI which, if wired incorrectly, generate large amounts of EMI through the vehicles electrical system. This  
can cause items such as ECU’s and boost controllers to be effected. Please follow ignition system installation instructions VERY  
carefully to avoid EMI affecting the E-Boost Street. Sometimes, using resistor type spark plugs can reduce this problem.  
O
The E-Boost Street is not waterproof and must be mounted inside the cabin. The unit has an operating temperature range of -5 C  
O
to 70 C.  
1
CONTENTS  
INSTALLATION ..................................................................................................................3  
Wiring ..............................................................................................................................................3  
RPM Signal Connection (OPTIONAL)...........................................................................................3  
Vacuum/pressure signal ...................................................................................................................4  
Installing the E-Boost Street Solenoid.............................................................................................4  
SOLENOID HOOK UP METHODS .....................................................................................4  
INTERNAL WASTEGATE CONNECTION .................................................................................5  
Single solenoid, single turbocharger hook up..................................................................................5  
Single solenoid, twin parallel turbocharger hook up .......................................................................6  
Twin solenoid, twin parallel turbocharger hook up .........................................................................6  
EXTERNAL WASTEGATE CONNECTION ................................................................................7  
Single port, single solenoid, single turbo connection Method.........................................................7  
Single port, single solenoid, twin turbo connection Method ...........................................................7  
Single port, twin solenoid, twin turbo connection Method..............................................................8  
Two port, single solenoid, single turbo connection Method (1) ......................................................8  
Two port, single solenoid, twin turbo connection Method (1).........................................................9  
Two port, twin solenoid, twin turbo connection Method (1)...........................................................9  
Two port, single solenoid, single turbo connection Method (2) ....................................................10  
Two port, single solenoid, Twin turbo connection Method (2) .....................................................10  
Two port, twin solenoid, Twin turbo connection Method (2)........................................................11  
Two port, single 4 port solenoid, single turbo connection Method (3)..........................................11  
Two port, single 4 port solenoid, twin turbo connection Method (3) ............................................11  
Two port, twin 4 port solenoid, twin turbo connection Method (3)...............................................12  
BASIC FUNCTIONALITY..................................................................................................13  
Unit Layout ....................................................................................................................................13  
OFF mode ......................................................................................................................................13  
Live mode menu.............................................................................................................................13  
Changing between 2 boost groups .................................................................................................13  
SETUP...............................................................................................................................14  
OVER BOOST SHUTDOWN (OBS) ...........................................................................................15  
SCALE (SCL)................................................................................................................................15  
BOOST SETUP (bG1 and bG2) ....................................................................................................15  
Setting SP1 (Set point):..........................................................................................................16  
Setting GP1 (Gate pressure):................................................................................................16  
Setting SN1 (Sensitivity): .......................................................................................................16  
RPM DISPLAY CONFIGURATION (CYL)................................................................................17  
LIGHT DIM (DM).........................................................................................................................17  
SWITCH LOGIC (sL) ...................................................................................................................17  
AUXILIARY OUTPUT (AU) .......................................................................................................17  
BOOST CORRECTION (COR)....................................................................................................17  
SECURITY PIN (PIN)...................................................................................................................18  
RPM SHIFT LIGHT (RL) .............................................................................................................18  
ZERO DISPLAY (ZER) ................................................................................................................18  
SOLENOID CYCLE(SOL) ...........................................................................................................19  
FACTORY RESET (RES).............................................................................................................19  
TROUBLESHOOTING ......................................................................................................19  
2
INSTALLATION  
Wiring  
(Solder all wires together and insulate the joints with the supplied heat shrink)  
Note: Unused wires must be insulated with electrical tape so that they do not touch other wires or the chassis  
Red Wire +12 Volts switched through ignition connect via 5 Amp fuse supplied  
Black Wire Chassis, earth or ground  
Yellow Wire To 3.5V 12V Square wave (RPM) Signal OPTIONAL  
Green Wire External set point switching (Ground to activate) OPTIONAL  
Orange Wire Dimming trigger (Ground to activate) OPTIONAL  
White Wire Auxiliary Output (Negative switched) OPTIONAL  
Brown and grey wire to boost control solenoid (Polarity not important)  
RPM Signal Connection (OPTIONAL)  
RPM signal connection is ONLY for Tacho mode, RPM set point mapping, Boost correction, shift light function and other advanced  
features. Turbosmart recommends your RPM signal be connected by an appropriately qualified technician or automotive electrician. For  
further information consult your vehicle’s manuals or your local automotive electrician. The E-Boost Street is ONLY able to accept an  
RPM signal in the form of a square wave that is switching between 0V and 3.5-12 volts.  
The following points should be followed to connect your RPM signal to an ECU pin.  
-
-
Locate your ECU RPM signal wire and splice into the signal wire coming from your ECU.  
Check the output you are splicing into is a square wave that is switching between switching between 0V and 3.5-12 volts with an  
appropriate meter.  
-
-
Connect the yellow RPM wire from the E-Boost Street to the spliced section of the ECU RPM out.  
Turn on the E-Boost Street and configure your signal to the number of cylinders or rotors your engine has using the CYL (cylinder)  
parameter located in the setup menu.  
-
-
In live mode with your engine running press mode once to show live RPM. The display should be reading RPMx100 e.g. 015 on  
the display indicates 1500 RPM. If the display is not reading correctly re-check the cylinder configuration in the setup menu.  
Note: If the OEM tachometer does not display RPM after installing the E-Boost Street, a 2 ohm or higher resistor needs to  
be installed in line between the ECU RPM output pin and the E-Boost Street.  
The following points should be followed to connect your RPM signal to the negative terminal of an ignition coil. NOTE: Caution should  
be exercised when connecting to the negative terminal of an ignition coil and Turbosmart recommends an ECU connection where  
possible. IMPORTANT! The RPM signal should not be connected to a coil of a capacitive discharge ignition (CDI) system.  
3
-
Check the signal from the negative terminal is a square wave that is switching between switching between 0V and 3.5-12 volts with  
an appropriate meter. If the voltage is below 3.5V (coil trigger signals tend to have a very low voltage) the e-Boost will not read a  
signal. In this case, a signal amplifier (also known as a tach adapter) must be used to boost the signal.  
Connect the RPM signal wire from the E-Boost Street to the negative terminal of an ignition coil or tach adapter (which ever  
method is used).  
Turn on the E-Boost Street and configure your signal to the number of cylinders or rotors your engine has using the CYL (cylinder)  
parameter located in the setup menu  
In live mode with your engine running press mode once to show live RPM. The display should be reading RPMx100 e.g. 015 on  
the display indicates 1500 RPM. If the display is not reading correctly re-check the cylinder configuration in the setup menu.  
-
-
-
Vacuum/pressure signal  
The E-Boost Street requires a vacuum/pressure signal from the intake manifold to function. A combination of poly tube and silicone  
hose is used to connect the E-boost Street to a adequate vacuum/pressure signal. Route the poly tube from the E-boost Street  
head unit through the fire wall approximately 100mm (4”) only as the poly tube is not rated to the high temperatures of the engine  
bay.  
Use the connecting barb to join the poly tube to the 3mm ID silicon hose at the firewall/bulkhead. Ensure the poly tube is pressed  
all the way onto the connecting barb  
Route the silicon hose through the engine bay and connect it to a pressure/vacuum signal from the inlet manifold. Use the supplied  
tee piece if necessary.  
Secure all connections with the supplied hose clamps  
Installing the E-Boost Street Solenoid  
-
The E-Boost Street solenoid is rated to a maximum temperature of 100  
degrees Celsius (212 degrees Fahrenheit), ensure that it is mounted a  
minimum of 250mm (10 Inches) away from the heat of the turbo or  
exhaust manifold, otherwise heat shielding maybe required.  
-
-
Mount the E-Boost Street solenoid in an appropriate position in the  
engine bay with the mounting kit supplied.  
Fit the rubber grommet inside the mounting plate. Slide the sleeve  
inside the grommet. Use the M3 screws to bolt the solenoid to the  
mounting bracket Note use loctite on the threads to secure. Use the  
M6 screw, washer and Nyloc nut to mount in a suitable location in the  
engine bay.  
-
-
The E-Boost Street head unit is capable of controlling two solenoids. The use of twin solenoids is not necessary but is  
recommended in twin turbo setups on V configuration engines as this reduces the length of hose required for plumbing which aids  
in response and control of the wastegates.  
The solenoid must be connected to a pressure only source which must be located before the intercooler, ideally off the compressor  
cover of the turbocharger. The air temperature before the intercooler is less affected by ambient conditions which will give you  
more consistent boost control.  
SOLENOID HOOK UP METHODS  
WARNING! Changing to different connection method can cause a higher than expected increase in boost pressure. Turbosmart  
recommends adjusting your boost controller back to its minimum setting and measuring the new minimum boost pressure achieved by  
the new setup before increasing your boost again.  
4
Note: If your vehicle is fitted with a factory boost control solenoid, the hoses that run from the pressure source and to the  
wastegate actuator must be disconnected. Leave the solenoid plugged into the wiring loom so that the ECU is not affected.  
Failure to disable the factory boost control solenoid and hoses will result in erratic or fluctuating boost pressures which could  
damage your engine.  
INTERNAL WASTEGATE CONNECTION  
WARNING! Changing to different connection methods can cause a higher than expected increase in boost pressure. Turbosmart  
recommends adjusting your boost controller back to its minimum setting and measuring the new minimum boost pressure achieved by  
the new setup before increasing your boost again.  
Note: If your vehicle is fitted with a factory boost control solenoid, the hoses that run from the solenoid to the pressure source  
and to the wastegate actuator must be disconnected from the solenoid. Leave the solenoid plugged into the wiring loom so  
that the ECU is not affected.  
Most factory turbocharged vehicles use an internal waste gate system to control boost pressure. The E-Boost Street controls boost  
pressure by controlling the pressure signal that the waste gate actuator receives from the turbocharger. Please note that the E-Boost  
Street cannot be used to obtain a boost pressure lower than the standard waste gate actuator’s pressure setting.  
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.  
Single solenoid, single turbocharger hook up (Basic single internal wastegate setups)  
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.  
Solenoid  
Port 1 of solenoid vent  
to atmosphere  
Port (2): to the internal wastegate actuator  
Port (3): to pressure only source  
Port 2 of solenoid  
to actuator  
Actuator  
Turbocharger  
Pressure only source to  
Port 3 of solenoid  
If you are unable to achieve your desired boost pressure, it is normally due to exhaust manifold backpressure forcing the internal waste  
gate to open. To increase your boost pressure further, fit a higher pressure waste gate actuator to increase your minimum boost  
pressure.  
WARNING! Fitting a higher pressure waste gate actuator may cause a higher than expected increase in boost pressure.  
Turbosmart recommends resetting the boost set point values to Zero and measure the new minimum boost pressure before increasing  
your boost set point values.  
Port 2 of solenoid  
to actuator  
Internal wastegates with 2 ports  
Port (1): vents pressure from the solenoid.  
Port (2): connect to one of the ports of the actuator  
Port (3): to pressure only source  
Port 1 of solenoid vent  
to atmosphere  
Pressure only  
source to port 3  
of solenoid  
Block off unused port on the actuator with suitable blank  
Block off unused  
port  
5
Single solenoid, twin parallel turbocharger hook up  
(For straight configuration twin parallel turbocharger engines E.g. RB26DETT)  
The E-Boost Street is capable of controlling twin internal wastegate turbochargers with a single solenoid.  
This method is used when the turbochargers are mounted close to each other allowing the solenoid to be mounted close to both  
actuators  
Each solenoid port is connected as follows:  
-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 tee piece that feeds both actuators  
Port (3): to pressure only source  
-
Port 1 of solenoid  
Vent to atmosphere  
Port 2 of solenoid to  
tee piece  
Port 3 of solenoid to  
pressure only source  
Tee Piece  
Actuator  
Actuator  
Block off with  
suitable blank  
Turbochargers  
Twin solenoid, twin parallel turbocharger hook up  
(For V configuration twin parallel turbocharger engines E.g. V6, V8 etc)  
The E-Boost Street is capable of controlling two solenoids for twin parallel turbocharger setups.  
This method is used when there is a great distance between the wastegates. This allows the solenoids to be mounted close to the  
wastegates to minimise the length of hose used and to maximise response  
You will need a second solenoid for this method (TS-0301-3003)  
Connect the grey wire from the e-Boost wiring loom to one of the wire from each solenoid.  
Connect the brown wire from the e-Boost wiring loom to the remaining wire from each solenoid.  
Each solenoid port is connected as follows:  
-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.  
Wires to E-Boost  
-Port (2): to the internal wastegate actuator  
Port 1 of solenoid  
vent to atmosphere  
Port (3): to pressure only source  
Port 2 of solenoid to  
actuator  
Pressure only source  
to port 3 of solenoid  
6
EXTERNAL WASTEGATE CONNECTION  
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, the 2 port method (3) with  
a 4 port solenoid (sold separately TS-0301-2003) might be needed.  
A single solenoid can be used to control twin wastegates in a twin turbo setup but it is recommended that 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.  
Single port, single solenoid, single turbo connection Method  
(Basic single wastegate setup)  
Port 1 of solenoid vent to atmosphere  
Port 2 of solenoid to bottom port of wastegate  
Port 3 of solenoid to Pressure only source  
Top port vent to  
atmosphere  
Port 1 of solenoid  
vent to atmosphere  
Pressure only to Port  
3 of solenoid  
External wastegate  
Bottom port of  
wastegate to port 2  
of solenoid  
Turbocharger  
Single port, single solenoid, twin turbo connection Method  
(For straight configuration twin parallel turbocharger engines E.g. RB26DETT)  
Port 1 of solenoid vent to atmosphere  
Port 2 of solenoid to bottom port of wastegate  
Port 3 of solenoid to Pressure only source  
Block off other turbocharger pressure port (if needed)  
Port 2 to bottom port  
of both wastegates  
Solenoid  
Port 1 of solenoid  
vent to atmosphere  
Tee Piece  
Pressure only to Port  
3 of solenoid  
Vent top port of both  
wastegates  
Plug pressure port on  
one turbo only  
7
Single port, twin solenoid, twin turbo connection Method  
(For V configuration twin parallel turbocharger engines E.g. V6, V8 etc)  
Port 1 of solenoid vent to atmosphere  
Port 2 of solenoid to bottom port of wastegate  
Port 3 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  
Join wires  
Top port vent to  
atmosphere  
Port 1 of solenoid  
vent to atmosphere  
Pressure only to Port  
3 of solenoid  
Port 2 of solenoid to  
bottom port of wastegate  
Two port, single solenoid, single turbo connection Method (1)  
(For controlling boost on a single turbo, single wastegate, single solenoid turbo system with high back pressure)  
*
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.  
Connect the bottom port of the wastegate and Port 1 of the solenoid to a Pressure only source via a tee piece  
Port 2 of the solenoid to the top port of the wastegate  
Solenoid  
Port 3 of solenoid vent to atmosphere  
Port 1 of solenoid to pressure  
only source  
Port 2 of solenoid to top  
port of wastegate  
Tee Piece  
Wastegate  
Pressure only source  
Bottom port of wastegate  
To pressure only source  
Turbocharger  
Port 3 of solenoid vent  
To atmosphere  
8
Two port, single solenoid, twin turbo connection Method (1)  
(For controlling boost on a twin turbo, twin wastegate, single solenoid turbo system, on a straight configuration engine with high back  
pressure)  
Connect the bottom port of the wastegates and Port 1 of the solenoid to a Pressure only source via tee pieces  
Port 2 of the solenoid to the top port of the wastegates via tee pieces  
Port 3 of solenoid vent to atmosphere  
Block off other turbocharger pressure port (if needed)  
Port 2 of solenoid to top port  
Of both wastegates  
Solenoid  
Pressure source only to port 1  
of solenoid and bottom port of  
both wastegates  
Plug pressure port on  
one turbo only  
Tee Piece  
Port 3 of solenoid vent  
to atmosphere  
Two port, twin solenoid, twin turbo connection Method (1)(For controlling boost on a  
twin turbo, twin wastegate, twin solenoid turbo system, on a V configuration engine with high back pressure)  
Connect the bottom port of the wastegate and Port 1 of the solenoid to a Pressure only source via a tee piece  
Port 2 of the solenoid to the top port of the wastegate  
Port 3 of solenoid vent to atmosphere  
Join the wires from both solenoids together (polarity not important) and then connect them to the brown and grey wires of the  
wiring loom  
Port 2 of solenoid to top  
port  
Solenoid  
Join wires  
Port 1 of solenoid to  
pressure only source  
Tee Piece  
Vent to  
atmosphere  
9
Two port, single solenoid, single turbo connection Method (2)  
(For obtaining maximum boost pressure on your single turbo system)  
Port 1 of solenoid to Top port of wastegate  
Port 2 of solenoid to Pressure only source  
Port 3 of solenoid to Bottom port of wastegate  
Solenoid  
Port 1 of solenoid to  
Top port of wastegate  
Port 2 of solenoid to  
pressure only source  
Wastegate  
Turbocharger  
Port 3 of solenoid to  
bottom port of wastegate  
Two port, single solenoid, Twin turbo connection Method (2)  
(For obtaining maximum boost pressure on your twin turbo straight engine)  
Port 1 of solenoid to Top port of wastegates  
Port 2 of solenoid to Pressure only source  
Port 3 of solenoid to Bottom port of wastegates  
Block off other turbocharger pressure port (if needed)  
Port 1 of solenoid to top port  
of wastegates via tee piece  
Solenoid  
Tee Piece  
Port 2 of solenoid to  
pressure only source  
Port 3 of solenoid to bottom  
port of wastegates via tee  
Plug pressure port on  
one turbo only  
1
0
Two port, twin solenoid, Twin turbo connection Method (2)  
(For obtaining maximum boost pressure on your twin turbo V configuration engine)  
Port 1 of solenoid to Top port of wastegates  
Port 2 of solenoid to Pressure only source  
Port 3 of solenoid to Bottom port of wastegates  
Join the wires from both solenoids together (polarity not important) and then connect them to the brown and grey wires of the  
wiring loom  
Port 2 of solenoid to  
pressure only source  
Port 1 of solenoid to top port  
of wastegates via tee piece  
Join wires  
Port 3 of solenoid to bottom  
port of wastegates via tee  
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  
4
Port solenoid  
Port A of solenoid to top port of  
wastegate  
EX Port of solenoid vent  
to atmosphere  
IN Port of solenoid to  
pressure only source  
Port B of solenoid to  
Wastegate  
bottom port of wastegate  
Turbocharger  
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  
Port A of solenoid to top port of  
wastegates via tee piece  
IN port of solenoid to Pressure only source  
4
Port solenoid  
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 wastegates  
via tee piece  
1
1
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  
Port A of solenoid to top port of  
wastegates via tee piece  
Join wires  
EX Port of solenoid  
vent to atmosphere  
Port B of solenoid to  
bottom port of wastegate  
IN Port of solenoid to  
pressure only source  
1
2
BASIC FUNCTIONALITY  
Unit Layout  
Display  
Knob  
Vacuum/pressure  
poly tube connector  
8
Pin Connector  
OFF mode  
The E-Boost Street can be switched off by holding the knob down for 10 seconds. This will disable the functionality of the E-Boost Street  
and result in wastegate spring tension boost levels. To turn the unit back on, press the knob.  
Live mode menu  
LIVE BOOST: Displays the amount of vacuum/boost being read by the unit.  
LIVE RPM: Displays the RPM X100 (020 = 2000 RPM) of the engine if the RPM wire is connected to a Square wave signal from the  
ECU.  
CURRENT SP VALUE: Displays the SP value the unit is currently set to.  
PEAK HOLD BOOST: Displays the peak boost level the unit has measured.  
PEAK HOLD RPM: Displays the peak RPM the unit has measured.  
Changing between 2 boost groups  
Press knob to change between  
boost groups  
1
3
SETUP  
To enter the setup menu, press and hold the knob for 3 seconds. To navigate through the setup menu, rotate the knob to the left or right  
for the various options as shown below. To enter any of the menus, press the knob. Once your settings are entered via turning the knob  
left or right, you can save the setting by pressing the knob once. To exit any menu, press the knob for 3 seconds or alternatively, go to  
END in the menu. This will take you back to the previous menu.  
1
4
OVER BOOST SHUTDOWN  
In order to successfully program your E-Boost Street you MUST carefully follow this section.  
Turbosmart recommends that this function is used in conjunction with another form of Over-boost protection such as  
fuel/ignition cut or over-boost valve. The OBS will not stop an over-boost scenario if there is a mechanical failure on the car  
that inhibits the E-Boost Street from controlling the wastegate or if electromagnetic interference due to incorrect wiring  
causes electrical interference to the E-Boost Street.  
If the OBS is triggered the E-Boost Street will reduce the boost pressure to half of that set in the OBS parameter. Once this safe  
pressure is achieved the E-Boost Street will return to normal operation. OBS must be set to the maximum safe level your engine can  
handle and your set points must be below the OBS setting. When the OBS is triggered OBS will flash on the display to indicate that your  
boost pressure has reached the over boost shut down value. OBS will flash on the screen when triggered in live mode and when a set  
point is being edited. Please note, OBS will not work in setup mode.  
The OBS is factory set to 7 PSI (0.48 Bar or 48 KPa), so you must enter a figure in order for the E-Boost Street to produce more than  
the standard boost pressure. The purpose of this feature is to protect your engine against accidentally entering a boost set point value  
that is too high, preventing a dangerously high boost pressure. Extreme care should be taken when setting this parameter. Turbosmart  
recommends that you seek advice from an appropriately qualified technician with regard to the OBS setting.  
SCALE  
The E-Boost Street readout can be configured in either Bar, PSI or KPa, the default setting is in psi. This allows you to tailor the readout  
to suit your own preference. Note that when the PSI scale is selected and the E-Boost Street is under vacuum conditions the display will  
read in inches of Mercury (inHg), not negative PSI.  
BOOST SETUP (bG1 and bG2)  
The E-Boost Street has the ability to control two levels of boost (BG1/BG2). The parameters that can be adjusted in each boost group  
are set point (SP1/SP2), gate pressure (GP1/GP2) and sensitivity (SN1/SN2). Set up the boost groups in the following order:  
1
5
Setting SP1 (Set point): The SP value determines the DUTY CYCLE the solenoid will operate at when the gate pressure is reached.  
The SP value is not the amount of boost pressure your turbo will produce. This is a value between 0 99. The larger the value, the  
more boost the turbocharger will produce. Start the setup by increasing the SP value to 20. Bring the car onto boost and see what the  
maximum boost pressure is. Increase the value in small increments until you achieve your desired boost pressure. The SP value can  
also be adjusted while the car is on boost however, instead of the SP value being displayed, the boost pressure will be displayed so you  
know what pressure you are achieving. This is the easiest way to set your set points. Press the KNOB to enter the menu and adjust the  
values rotating the knob LEFT or RIGHT. Press the KNOB again to save the desired setting.  
Setting GP1 (Gate pressure): This feature helps bring boost on faster at lower rpm and will give an increase in torque. Start by setting  
the gate pressure 5 PSI below the desired boost pressure with the corresponding SP value e.g. if the desired boost pressure is 15 PSI,  
set the gate pressure to 10 PSI first and adjust from there. Adjust the value higher to increase the response of the turbocharger or  
decrease the value to reduce the response. If this setting is too close to target boost, you will get a boost spike. Press the KNOB to  
enter the menu and adjust the values by rotating the knob LEFT or RIGHT. Press the KNOB again to save the desired setting.  
Setting SN1 (Sensitivity): The sensitivity is how sensitive the E-Boost Street is to changes in the boost curve. Under normal  
circumstances the sensitivity is left at the factory set level of 20. If your boost curve is wavy through the rev range, reduce the sensitivity,  
if your boost curve drops off at the end of the rev range, increase the sensitivity. Note: do not increase this value higher than 30. Press  
the KNOB to enter the menu and adjust the values by rotating the knob LEFT or RIGHT. Press the KNOB again to save the desired  
setting.  
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RPM DISPLAY CONFIGURATION  
If you have connected the yellow RPM wire to an RPM signal from your ECU or negative terminal of an ignition coil you will need to  
input the number of cylinders / rotors in order to configure the RPM signal correctly i.e. the number of pulses per revolution being picked  
up from the RPM output of the ECU. The number of cylinders available is between 1 and 16. The RPM input can accept a square wave  
signal between 3.5 and 12V. For Mazda Rotary engines, 13B and 20B engines can be configured as 4 and 6 cylinders respectively.  
LIGHT DIM  
The brightness of the display can be adjusted on a scale of 0 6. The display can also be dimmed automatically by earthing the orange  
wire when the vehicle’s light system is switched on and setting the scale to 0.  
SWITCH LOGIC  
The switch logic determines how the E-Boost Street switches between boost groups BG1 and BG2. It is factory set to internal switching  
(ISP) where boost groups are changed by pushing the knob. Alternatively, boost groups can be switched remotely when the switch logic  
is set to external switching (ESP). By earthing the green wire using a switch, you can toggle change from SP1 to SP2. Un-earthing this  
wire will return the set point back to SP1.  
AUXILIARY OUTPUT  
The e-Boost Street has an auxiliary output function designed to control an auxiliary device once a certain boost pressure or RPM value  
is reached i.e. water spray, water injection, warning light or nitrous controller. This circuit can be used to control a resistor type  
automotive relay with a maximum current draw of 2 amps.  
There are four options bOn, bOF, rOn and rOF. The boost setting on (bOn) and off (bOF) value will be entered in the units that are  
currently selected for display. Between the bOn and bOF values the auxiliary output circuit will be closed and therefore will switch the  
relay on.  
The RPM setting on (rOn), and off (rOF) are entered as RPM x 100 e.g. if 5000 RPM is the desired setting the user will input 050.  
Between the rOn and rOF values the auxiliary output circuit will be closed.  
If the bOF or rOF is set to zero there will be no off and the circuit will remain closed until boost or RPM drops below the rOn or bOn  
value. If using a boost setting only to switch the relay the RPM parameter values should be set to zero to turn off or vice versa.  
If using the auxiliary circuit as a nitrous controller, you can enter all four user definable parameters bOn, bOF, rOn, and rOF. The  
auxiliary circuit will be closed when boost and RPM fall with the window created by these four parameters. That is when boost pressure  
is between bOn and bOF AND when RPM is between rOn and rOF.  
AU on in  
window  
Bof  
Bon  
Ron  
Rof  
BOOST CORRECTION  
This function is use to reduce or eliminate boost drop off at high RPM. Switching this function on will display the boost correction menu  
in the boost group menu. This function is best performed on a chassis dyno where the graph of the boost curve can be displayed and  
accurately interpreted.  
The boost correction function requires 3 parameters to work; the START RPM, the END RPM and the correction factor.  
START RPM (RP1): This is the engine RPM at which boost begins to drop off.  
END RPM (RP2): This is the engine RPM at which you want to turn off the boost correction function, normally set at redline.  
Correction factor (FAC): The percentage at which boost is dropping off between the START and END RPM.  
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Example:  
The following boost curve shows that between 5000 and 7000 RPM, the boost drops off from 15 PSI to 10 PSI.  
Boost curve before COR is setup  
To reduce or eliminate this boost drop off, you need to input the following values:  
RP1 = 050 (5000 RPM)  
RP2 = 070 (7000 RPM)  
FAC = 100 - [(10 ÷ 15) X 100] = 33  
Boost curve after COR is setup  
SECURITY PIN  
The user or workshop can set a 3 digit password that will lock the boost menu, obS, SL, rSP, COR, dS, nSP, and CYL parameters for  
editing. The default code is 000 set from the factory. If the code has not been changed then the unit will be fully accessible and  
everything will be available for editing. As soon a different value is entered under the PIn parameter in the setup menu this will be the  
new password.  
Once a password has been set under PIN in the setup menu pressing mode and down to access the boost menu will bring up a 3 digit  
prompt (triple zeros) where a PIN must be entered correctly to enter the boost group and unlock the unit.  
Once a password has been configured the obS, CYL, SL, rSP, COR, dS, nSP, in the setup menu will be masked and not available for  
editing. To unmask these parameters go to the PIn parameter and enter the current password to unlock the setup parameters for  
editing. Alternatively enter the correct PIN in the boost group prompt and the entire unit will be unlocked until the PIN is re-entered in the  
PIN parameter to re-lock the unit.  
Applying the factory reset will reset the code and reset all stored values to the factory defaults. This function enables workshops or  
tuners to lock their setup against tampering. Returning the PIN to 000 will de-activate the password protection.  
RPM SHIFT LIGHT  
This function allows the user to preset a RPM value at which the display will begin to flash. The RPM will continue to flash until the  
engine RPM drops below the preset value. RPM values are entered in multiples of 100, e.g. 5000 RPM = 050. The yellow wire needs to  
be connected as per the wiring diagram.  
ZERO DISPLAY  
The E-Boost Street is factory calibrated to read zero at standard atmospheric pressure and temperature. The E-Boost Street is altitude  
compensated however a large change in temperature can cause the display to read slightly above or below zero even when there is  
zero pressure applied to the E-Boost Street. This function allows you to zero the E-Boost Street display. IMPORTANT! Before using  
the zero function ensure the vacuum/pressure line is removed from the back of the unit.  
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SOLENOID CYCLE  
This function is used to check whether the solenoid is properly connected to the head unit. Selecting this function will cause the solenoid  
to cycle (click) 4 times.  
FACTORY RESET  
This function performs a factory reset and returns all the settings back to factory default. Be sure that you have written down the settings  
that you wish to keep before performing this function.  
TROUBLESHOOTING  
The following points should be checked if you find that your engine is over-boosting, under-boosting or the boost pressure is fluctuating  
erratically. Please note the following checks will cure 99% of problems experienced when fitting a Turbosmart E-Boost Street.  
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Check that the E-Boost Street solenoid is installed correctly.  
Ensure the factory boost control solenoid is not connected in the hose between the pressure source and the wastegate actuator  
Ensure the length of the waste gate actuator rod has not been modified, refer to the manufactures specifications  
Check to see if the E-Boost Street solenoid is not blocked or contaminated with dirt, oil build up or debris  
Check the joining hoses for splits, cracks or loose connections and ensure they are not blocked, kinked or restricted, particularly if  
the existing hose was reused  
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Pressure test the waste gate actuator for leakage, the diaphragm or housing may be cracked or split  
Ensure the smooth and free operation of the wastegate arm in the turbo exhaust housing.  
Check that the hose between the E-Boost Street and the inlet manifold is not obstructed, broken or kinked.  
Check that the OBS is set higher than the boost pressure you are aiming for.  
Check the Blow-off Valve for leakage, some are used as over-boost valves  
Gate pressure maybe set too close to your desired boost pressure  
Ensure correct sensitivity setting.  
Check to see you can achieve constant steady boost with only the wastegate actuator connected directly to the pressure only  
source on the turbocharger.  
-
Use the Solenoid check function to determine whether the solenoid is electrically connected to the head unit.  
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ONE YEAR LIMITED WARRANTY  
Turbosmart is a company built on Customer Satisfaction and Service. That is why all of our products go through regimented test procedures before they are  
packaged and shipped. Turbosmart stands behind its products for one full year after purchase. Terms of Warranty, Service and Returns are as follows:  
Limited Warranty: Turbosmart warrants its products to be free from defects in material and workmanship under normal use and if properly installed for a period  
of one year from date of purchase. If found to be defective, it will be replaced or repaired if returned prepaid along with proof of date of purchase. This shall  
constitute the sole remedy of the purchaser and the sole liability of Turbosmart to the extent permitted by law, the foregoing is exclusive and in lieu of all other  
warranties or representations whether expressed or implied, including any implied warranty of merchantability or fitness. In no event shall Turbosmart be liable  
for special or consequential damages. This warranty is only valid on products purchased from Turbosmart Authorized Dealers.  
Service: After the warranty period has expired, repair service is charged based on a minimum and maximum charge rate. (Contact Customer Service for current  
rate).  
Returns: When returning a Turbosmart product for repair, it must be accompanied by a completed Customer Warranty Form and RMA number. To access this  
form please go to our website www.turbosmartonline.com and you will find it on the Downloads page.  
THE TURBOSMART PLEDGE  
DO NOT USE ANY TURBOSMART PRODUCT UNTIL YOU HAVE CAREFULLY READ AND UNDERSTOOD THE FOLLOWING AGREEMENT. Please call if  
you have any questions or do not understand this agreement. Refer to our brochure, website or catalogue for terms and conditions and further information  
regarding your product. Turbosmart appreciates your business and pride ourselves on our customer service. We are always happy to offer you advice and will  
provide you with help in any way we can. The purpose of this agreement is to avoid any problems or hard feelings.  
We sometimes make mistakes, as do our dealers, distributors and suppliers. Even customers can sometimes order the wrong parts. Do not use, modify, install,  
trial assemble, nick, drop, scratch or adjust any part until you first check for any damage. Damage must be reported immediately. NO EXCEPTIONS. If there are  
any components missing please contact your authorized reseller immediately upon receipt of your shipment. Missing components must be reported within five  
(5) business days of receipt. Parts returned for any reason MUST BE IN RESALABLE CONDITION. It is YOUR responsibility, “THE CUSTOMER” to carefully  
package any returns to avoid shipping damage. Insurance is highly recommended. Credit cannot be issued for damaged goods.  
Warranty as to Defects Australian Consumer Law  
1.1  
We warrant for a period of twelve (12) months from the date of supply of the Goods and/or Services that if due to the fault of Turbosmart the Goods  
and/or Services (as the case may be) provided by Us are defective then We will, as determined by Us do one or more of the following:  
(
a) In the case of Goods; the replacement of the Goods, the supply of equivalent Goods, the repair of the Goods, the payment of the cost of  
replacing the Goods or of acquiring equivalent Goods, or the payment of having the Goods repaired; or  
b) In the case of Services; the supplying of the Services again, or the payment of the cost of having the Services supplied again.  
(
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.2  
.3  
.4  
You will only be entitled to the benefit of the warranty set out in this pledge, if You have not wholly or partially caused or contributed to the defect  
to the Goods by the misuse of the Goods or the failure to use the Goods in accordance with any specifications or instructions applicable to the Goods.  
The warranty contained in this pledge is provided by Turbosmart Pty Limited of 32 Milton Street North, Ashfield NSW 2131, Australia, Telephone:  
+
(61) 1300 735 506, Email: [email protected].  
In order for a You to make a claim on the warranty You must within twelve (12) months of delivery of the Goods or Services give written notice to Us  
at the address specified in clause 1.3 above of the details of any defects in respect thereof. Any Goods referred to in a notice given pursuant to this  
clause should be left in the state and condition in which they were delivered until such time as We or Our duly authorised agent have inspected the  
Goods with such inspection to be carried out within a reasonable time after service of such notice. If the Goods are not so left in the state and  
condition  
in which they were delivered then the You shall be deemed to have accepted the Goods and the warranty contained in this pledge shall not apply.  
You shall be responsible for all expenses associated with making a warranty claim under this pledge however if the Goods and/or Services are found to  
be defective due to Our fault then We shall reimburse You for any expenses incurred by You in making a warranty claim upon receiving evidence  
satisfactory to Turbosmart to support such expenditure.  
1.5  
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.6  
.7  
The benefits to You given by the warranty contained in this pledge are in addition to other rights and remedies of You have under a law in relation to  
the Goods or Services to which the warranty relates.  
In accordance with the Australian Consumer Law We makes the following statement:  
“Our goods come with guarantees that cannot be excluded under the Australian Consumer Law. You are entitled to a replacement or refund for a  
major  
goods  
failure and compensation for any other reasonably foreseeable loss or damage. You are also entitled to have the goods repaired or replaced if the  
fail to be of acceptable quality and the failure does not amount to a major failure.”  
EXCEPT AS PROVIDED BY LAW, THIS LIMITED WARRANTY IS THE ONLY EXPRESS WARRANTY, WHICH APPLIES TO TURBOSMART PRODUCT AS  
EXPRESSLY GIVEN IN LIEU OF ANY OTHER WARRANTY EXPRESSED OR IMPLIED, INCLUDING THAT OF MERCHANTABILITY. ANY IMPLIED  
WARRANTY INCLUDING THAT OF MERCHANTABILITY AND/OR FITNESS FOR A PARTICCULAR PURPOSE IS HEREBY LIMITED BY THE SAME TERMS  
AND TIME LIMITATIONS SET FORTH IN THIS LIMITED EXPRESS WARRANTY AND OTHERWISE EXCLUDED.  
EXCEPT FOR THOSE OBLIGATIONS ASSUMED HEREIN, TURBOSMART ASSUMES NO OTHER OBLIGATIONS IN CONNECTION WITH THE SALE OF  
ITS PRODUCTS.  
IN THE EVENT THAT THE INDIVIUDAL PURCHASER DOES NOT AGREE WITH THIS AGREEMENT THE BUYER MAY PROMPTLY RETURN THIS  
PRODUCT, IN A NEW AND UN-USED CONDITION, WITH A DATED PROOF OF PURCHASE, TO THE PLACE OF PURCHASE WITHIN SEVEN (7) DAYS  
FROM THE DATE OF PURCHASE FOR A FULL REFUND.  
THE INSTALLATION OF THIS PRODUCT INDICATES THAT THE INDIVIDUAL PURCHASER HAS READ AND UNDERSTOOD THIS AGREEMENT AND  
ACCEPTS ITS TERMS AND CONDITIONS.  
Happy motoring!  
The Turbosmart Team  
Turbosmart Pty Limited P.O. Box 264 Croydon, NSW 2132 Australia ABN: 69 081 069 794  
Ph: +61 1300 735 506 Fax: +61 1300 735 509 Email: ins[email protected]  
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