Turbosmart WASTEGATES – EXTERNAL - Internal Wastegate Actuator (universal & model-specific) - Manual

www.TURBOSMARTONLINE.com
1
------------------------------------------------------------------------------------------------------------------------
IMPORTANT NOTES ON YOUR IWG75 INTERNAL WASTEGATE ACTUATOR
-
Consult your local specialist before setting your desired boost pressure, setting boost beyond your engines capability may result in
engine damage.
- Allow for adequate cool airflow around the top diaphragm housing
RECOMMENDATIONS
-
Turbosmart recommends that boost pressure is set using a Dynamometer and not on public roads.
- Turbosmart recommends that a boost gauge be permanently fitted to the vehicle.
- Turbosmart recommends that the engines Air/Fuel ratio is checked while setting the desired boost pressure, as any increase in
boost pressure can cause the engine to run “LEAN”, resulting in possible engine damage.
------------------------------------------------------------------------------------------------------------------------
BASIC COMPONENTS OF YOUR IWG75 INTERNAL WASTEGATE ACTUATOR
.
MOUNTING YOUR IWG75
Depending on the kit purchased, the IWG75 might not be provided with a bracket. You will need to either modify the existing bracket for
the standard internal wastegate actuator or fabricate a bracket. The hole spacing between the mounting screws is 34mm. The fabricated
bracket should be made from an appropriate material such as stainless steel that can handle high temperature and withstand high
spring forces. Use the supplied nuts and spring washers to secure the IWG75 to the bracket.
The Rod in the Universal IWG75 uses a ¼” UNF thread which can be used with a variety of different clevises to fix the end of the rod to
the wastegate valve.
When installing the clevis of the IWG75 onto the wastegate valve arm, make sure that there is 2mm of preload. Then use
compressed air (the amount of air pressure applied should be slightly higher than what the IWG75 spring is rated to) to pressurise the
IWG75 so that the clevis can be hooked onto the wastegate valve arm easily. Remember to reinstall the standard R-Clip or circlip to
secure the clevis to the wastegate valve arm. Then tighten the rod nut to secure the clevis onto the rod.
ACHIEVING YOUR TARGET BOOST PRESSURE
There are various factors involved in achieving your target boost pressure including.
- The size of the spring fitted in your wastegate actuator i.e. the boost pressure achieved by the wastegate actuator spring only.
- The desired level of boost pressure and the difference between this and your wastegate spring pressure.
- The size of your turbocharger and wastegate and the resulting exhaust manifold backpressure in your system.
Product Name: IWG75
Product Description: Internal Wastegate Actuator
Product Number: TS-06XX-XXXX
Swivel nipple
(Can be removed to fit Dash 3 fitting)
Locking Collar
Mounting bracket
(Included in some kits)
Clevis
(Not Included)
Clevis locking nut
Washers
Securing nuts
Rod Nut Wastegate valve
arm