Aeroflow wastegates feature an internal valve constructed from high temp NICrFe based alloy. Other features
include a high temperature silicone nomex reinforced actuator diaphragm and stainless steel actuator springs
that delivers consistent boost pressure at high temperatures. Nitronic stainless steel is used for the valve seat
and valve bushing which all offer longer product life at extreme temperatures.
Aeroflow Performance wastegates feature water cooling ports ( 2 x M8x1.0mm ) for those heavy duty
applications. These are optional and can be disregarded if not required. There are also three lower air pressure
ports and two top air pressure ports ( 5 x M10x1.00mm ) for easy installation this eliminates the need to rotate
the actuator top hat, two stainless steel plugs and gaskets are included for unused lower air ports. Included in
the kit for the water cool ports are two stainless steel fittings and gaskets to a -4AN, for the air ports two
fittings and gaskets to -4AN both are stainless steel. Two banjo bolts in stainless steel and alloy banjo’s with
gaskets are included for a barb option to use a rubber/silicone 6mm vacuum hose.
Aeroflow Performance wastegates come pre-set to 1 bar ( 14.7 PSI ). This can easily be altered by purchasing
and installing springs from Aeroflow’s accessory spring range. The wastegate also includes required stainless
steel hardware for installation which includes : valve seat, inlet V-band clamp/flange and outlet V-band
clamp/flange.
INSTALLATION RECOMMENDATIONS
Be sure to install the valve seat into the body of the wastegate before final installation.
Tighten the supplied V-band clamp bolts to 10Nm ( do not overtighten )
In order to assure proper boost control, this wastegate needs to be mounted at a smooth transitional
angle with the exhaust flow. 90° mounting onto exhaust tubing is not recommended.
The inlet fitting
should be welded to the exhaust manifold after all the exhaust runners have merged, and in a
position that promotes smooth flow to the wastegate – fast-moving exhaust gas is reluctant to make
sharp turns, which significantly reduces the flow potential through the wastegate.
Inlet and Outlet flanges are constructed of, 304 stainless steel and are compatible with most stainless
steel and mild steel welding rod material.
It is recommended to secure all vacuum and boost control hoses securely with zip ties or cushioned
clamps. Route all vacuum hoses away from high heat sources such as the turbine housing and exhaust
manifold. Aeroflow Performance recommends the use of braided lines and fittings for extra
protection against heat sources.
BOOST CONTROL RECOMMENDATIONS
There are many different ways to connect the wastegate boost ports. Whilst it is possible to use any number of
different methods that are not listed below, you should always remember the following:
-
The lowest boost pressure possible is determined by the spring
-
The lowest possible boost pressure for a given spring combination is achieved when the
full boost
pressure is applied to the lower actuator port, and none to the upper port
-
Boost pressure increases when you decrease the pressure at the lower port and/or Increase the
pressure at the upper port
For more information or technical enquires
Contact: Aeroflow Performance on
