Turbosmart WASTEGATES – EXTERNAL - Comp-Gate40 (with locking ring) - Manual (Page 2)

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RECOMMENDATIONS FOR MOUNTING YOUR COMP-GATE40
The mounting position of your Comp-Gate40 will be largely determined by your turbo and manifold setup and may be constrained by
space restrictions in your engine bay. The following points should be considered when mounting your Comp-Gate40.
-
The weld flanges should be welded to your exhaust
system. The weld flanges are compatible with Stainless
Steel and Mild steel welding rod material.
- For best results an attempt should be made, if
space allows, to mount the Comp-Gate40 at an
angle to the exhaust flow to allow for better flow
than a 90 degree mounting. See the schematic
diagrams
below for examples of mounting
positions.
- The inlet of the Comp-Gate40 is compatible with
turbo systems manufactured for use with other
manufacturers 38mm V-banded wastegates. If your
exhaust manifold uses other manufacturers 38mm
V-banded wastegate flange, you can mount the
Comp-Gate40 directly on using the included valve
seat and V-band clamp. However, the outlet flange
configuration on the Comp-Gate40 is slightly
different requiring the use of the included outlet
flange
- Secure the Comp-Gate40 to the weld flanges with the
supplied V-Band clamps. Do not forget to put the valve
seat into the body before mounting the unit on the
exhaust manifold. Tighten the supplied ¼” screws to a
torque value of 14 Nm (10 ft/lbs)
PORT BLANKING PLUGS AND PRESSURE NIPPLES
The Comp-Gate40 is supplied with 2 X 1/16NPT nipples and 2 X 1/16 NPT plugs. These are installed in the lower and upper diaphragm
housings depending on the boost control hook up to create an air tight volume above or below the diaphragm so that air pressure can
control valve movement. Single port hook ups require a nipple and plug to be installed only on the lower diaphragm housing while two
port hook ups require a nipple and a plug to be installed in both lower and upper diaphragm housings. Use thread sealant on the
threads of the nipples and plugs to prevent leaks.
VALVE SEAT
The valve seat must be installed in the wastegate before mounting it onto the exhaust manifold. Failure to install the valve seat will
result in very limited boost produced by the turbocharger as the exhaust gases flow between the void where the valve seat normally sits
and the valve instead of flowing through the turbine.
Valve seat
(Remember to install)
Inlet Weld flange
Outlet V-Band
Outlet Weld
flange
Outlet V-Band
Upper diaphragm housing
with plugs installed
Lower diaphragm housing
with plugs installed
Upper diaphragm housing
with nipples installed
Lower diaphragm housing
with nipples installed