Turbosmart IWG75 Twin Port Manual Download Page 7

NOTES ON BOOST CONTROL HOOKUP 

WARNING! 

Changing  your  connection  method  can  cause  a  higher  than  expected  increase  in  boost  pressure.  Turbosmart 

recommends  adjusting  your  boost  controller  back  to  its  minimum  setting  and  measuring  the  new  minimum  boost  pressure 
achieved by the new setup before increasing your boost again. 

Basic setup 

If  no  boost  controller  is  being  used  connect  the 

BOOST  PRESSURE  ONLY  SOURCE

  to  the  wastegate  actuator  pressure 

nipple as shown. 

Boost Tee setup 

When using your wastegate actuator in conjunction with a Turbosmart Boost Tee, fit the controller between the boost pressure 
source and pressure nipple as shown. Ensure the arrow on the Boost Tee is pointing in the direction illustrated. 

Refer to the instructions supplied with your Boost Tee for further detail if necessary.  

 

Summary of Contents for IWG75 Twin Port

Page 1: ...hicle 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 TWIN PORT INTERNAL WASTEGATE ACTUATOR Disclaimer Please note that the images shown below portray examples of assembled products for explanation purposes T...

Page 2: ... Please refer to picture below 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 or compressor cover whichever is applicable MOUNTING YOUR IWG75 TWIN PORT BENT ROD Some IWG75 twin port actuators may incorporate a bent...

Page 3: ...t A clockwise to hold the wastegate flap shut Now use a 10mm spanner to turn nut A two complete turns in a clockwise direction The preload is now set to 2 mm To lock the preload setting tighten the preload lock nut Nut B in an anticlockwise direction until it is hand tight against the wastegate valve arm Use a torque wrench to tighten both nuts to 6 5Nm 4 79 ft lb Confirm that preload is set corre...

Page 4: ...essure when accompanying a Turbosmart IWG75 with a Turbosmart boost controller if the system is adequately sized Results will vary depending on every application 2 Check the spring combination in your IWG75 If more springs are required they can purchased from your Turbosmart dealer by using the TS xxx xxxx part numbers shown below each spring Pressure rating 3 PSI Inner 5 PSI Inner 7 PSI Middle 11...

Page 5: ...moved 1 If the engine has been running allow it to cool down before removing the actuator from its bracket 2 Use a press or a vice to clamp down the cap to the body and remove collar 3 Remove the actuator from the clamping device carefully as the cap is under spring load 4 Remove cap diaphragm and upper spring support with rod 5 Change the springs making sure that they sit in the right grooves in ...

Page 6: ...its bracket 2 Once the actuator is separated from the turbocharger assembly loosen turn buckle nut B and remove the bent rod and clevis assembly 3 Remove the turn buckle and turn buckle nut A 4 Use a press or a vice to clamp down the cap to the body and remove collar 5 Remove the actuator from the clamping device carefully as the cap is under spring load 6 Remove cap and lower housing 7 Remove the...

Page 7: ...sing your boost again Basic setup If no boost controller is being used connect the BOOST PRESSURE ONLY SOURCE to the wastegate actuator pressure nipple as shown Boost Tee setup When using your wastegate actuator in conjunction with a Turbosmart Boost Tee fit the controller between the boost pressure source and pressure nipple as shown Ensure the arrow on the Boost Tee is pointing in the direction ...

Page 8: ...stem with high back pressure Disclaimer Please note that base boost pressure will increase when using this method Reset your Turbosmart electronic boost controller to factory settings prior to further configuration Connect the Top port of the wastegate and port 1 of the solenoid to a pressure only source by teeing into source Port 2 of the solenoid to the bottom port of the wastegate Port 3 of sol...

Page 9: ... shipping damage Insurance is highly recommended Credit cannot be issued for damaged goods Turbosmart warranties the quality of the products it designs and manufactures to be free of defects in material and workmanship This limited warranty is extended only to the original purchaser and may not be transferred or assigned This limited warranty applies to any product which after careful inspection b...

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