Turbosmart BOOST CONTROLLERS – ELECTRONIC - e-Boost STREET 30psi Manual - Manual (Page 4)

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SCALE (SCL)
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.
OVER BOOST SHUTDOWN (OBS)
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.
Boost Group Setup (bG1 and bG2)
The E-Boost Street has the ability to control two levels of boost. 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) Set Point (SP1/SP2): The SP value determines the duty cycle the solenoid will operate at when the gate pressure is reached. 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 10. Bring the car onto boost and see what the maximum boost pressure is. Increase the value in small increments until you achieve
you 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.
2) Gate Pressure (GP1/GP2): 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. If this setting is too high, you will get a
boost spike. You can increase the gate pressure until you get a spike, then reduce the gate pressure until the spike is gone.
3) Sensitivity (SN1/SN2): 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.