Turbosmart BOOST CONTROLLERS – ELECTRONIC - e-Boost1 (2002-05) – Complete User Manual - Manual (Page 4)

e-Boost-40/60 Instructions
Page 4
PART NUMBER
FG-EBOOST-
40/60
Connect the three ports on the e-Boost solenoid according to the diagram below.
- Port (1) vents pressure from the e-Boost 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. If you
have removed a factory boost control solenoid
connect this hose to where the factory solenoid
originally vented.
- Port (2) Connects to the internal wastegate
actuator (See above if your actuator has two inlet
fittings)
- Port (3) 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.
If you are unable to achieve your desired boost pressure it is normally due to exhaust manifold backpressure forcing the internal wastegate to
open. To increase your boost pressure further, fit a higher pressure wastegate actuator to increase your minimum boost pressure.
WARNING! Fitting a higher pressure wastegate 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.
If you are still unable to achieve your desired boost pressure ensure that your turbocharger is correctly sized for your application
2e. Twin Internal Wastegate Connection
- The e-Boost solenoid is capable of controlling two
internal wastegate actuators as typically found on most
factory parallel twin turbo vehicles such as the Nissan
Skyline GTR, 300ZX, and Toyota Soarer.
- The solenoid is connected as per the single internal
wastegate instructions above, with the addition of a
tee-piece (not supplied) to connect both wastegate
actuators to port number (2).
- If there is a fitting on both compressor housings on the
turbochargers, use the most convenient fitting to
connect to port number (3), and block the other fitting.
If your turbochargers do not have these fittings,
connect port number (3) 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.
WARNING! Do not connect more that one standard e-Boost solenoid! This will overload the e-Boost circuit causing permanent damage!
For more than two internal wastegate actuators, use the Twin Solenoid Kit, Part # FG-EBOOST-TSK (instructions supplied with kit),
to ensure sufficient flow to accurately control boost pressure.