Turbosmart BOOST CONTROLLERS – ELECTRONIC - e-Boost1 (2002-05) – Complete User Manual - Manual (Page 6)

e-Boost-40/60 Instructions
Page 6
PART NUMBER
FG-EBOOST-
40/60
2h. “Two Port” Connection Method (2)
The “Two Port” connection method (2) is used to achieve the maximum possible boost pressure that your system can develop.
It is the most suitable method if you are unable to develop your desired boost pressure due to high exhaust manifold back pressure.
WARNING! An increase in your minimum boost pressure is expected when using this method. Ensure all Boost Set Point Values are set to Zero
and measure the new minimum boost pressure achieved by this method of connection before increasing your Boost Set Point values.
Connect the three ports on the e-Boost solenoid according to the diagram below.
- Port (1) Connects to the “Top” port on the external wastegate.
For Further information on external wastegate port
identification see section 2f.
-
Port (2) Connects to a “boost only” pressure source, typically
from the compressor housing on the turbocharger. If your
turbocharger does not have this fitting, connect to a “boost
only” pressure source before the throttle-body or butterfly.
Do not connect to the intake manifold, as the pressure signal
will have both vacuum and boost pressure.
- Port (3) Connects to the “Bottom” port on the external
wastegate. For Further information on external wastegate port
identification see section 2f.
If you are unable to achieve your desired boost pressure it is normally
due to exhaust manifold backpressure forcing the wastegate valve open. To increase your boost pressure further, fit a heavier wastegate
spring to increase your minimum boost pressure. If you are still unable to achieve your desired boost pressure ensure that your turbocharger is
correctly sized for your application.
2i. Multiple External Wastegate Connection
WARNING! Do not connect more that one standard e-Boost solenoid! This will overload the e-Boost circuit causing permanent damage!
The e-Boost solenoid is capable of controlling one external wastegate. For two external wastegates use the Twin Solenoid Kit,
Part # FG-EBOOST-TSK (instructions supplied with kit).