Product Name:  
Pro-Gate 50  
Product Description:  
Product Number:  
50mm External Wastegate  
TS-0502-1XXX  
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IMPORTANT NOTES ON YOUR EXTERNAL WASTEGATE  
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Fitting your Pro-Gate50 may require fabrication or modification to your exhaust manifold. Turbosmart recommends that your Pro-  
Gate50 is fitted by an appropriately qualified technician.  
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The Pro-Gate50 is designed for use with a turbocharger that does not have an internal wastegate.  
Consult your local specialist before setting your desired boost pressure, setting boost beyond your engines capability may result in  
engine damage.  
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DO NOT wrap the body of the wastegate with exhaust wrap  
DO NOT Mount the wastegate so that the top diaphragm housing is less than 100mm from a heat source  
Allow for adequate cool airflow around the top diaphragm housing  
RECOMMENDATIONS  
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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.  
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BASIC COMPONENTS OF YOUR PRO-GATE50 50MM EXTERNAL WASTEGATE  
Use the diagram to help identify the “top” and “bottom” ports, and inlet/outlet ports of your wastegate.  
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Top” Port  
Outlet  
Bottom” Port  
Inlet  
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When pressure is applied to the “bottom” port of a wastegate, i.e. underneath the wastegate diaphragm, it acts against the  
wastegate spring and the wastegate valve opens.  
When pressure is applied to the “top” port of a wastegate, i.e. above the wastegate diaphragm, its acts with the wastegate  
spring and helps to close the wastegate valve.  
The Inlet is connected to the exhaust manifold before the turbine housing of your turbocharger. See recommendations  
following for Pro-Gate50 mounting position.  
Outlet returns exhaust gas back into the exhaust system after the turbocharger. (NOTE if mounted on a dedicated race car  
the outlet can be vented directly to atmosphere towards the ground)  
CONTENTS  
Please make sure that the following parts have been included in the box  
Part  
Quantity  
1
Description  
Pro-gate 50 mm wastegate  
50mm external wastegate with pre-fitted spring (check the label on the  
box for rating)  
Inlet weld flange  
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1
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1
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Pro-Gate50 Stainless steel inlet weld flange  
Valve seat  
Pro-Gate50 Stainless steel valve seat  
Pro-Gate50 Stainless steel outlet weld flange  
Pro-Gate50 inlet V-Band clamp assembly  
Pro-Gate50 outlet V-Band clamp assembly  
Pro-Gate50 10 PSI spring (Black/blue)  
Outlet weld flange  
Inlet V-Band clamp assembly  
Outlet V-band clamp assembly  
10 PSI Middle spring  
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RECOMMENDATIONS FOR MOUNTING YOUR PRO-GATE50  
The mounting position of your Pro-Gate50 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 Pro-Gate50.  
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The weld flanges should be welded to your exhaust  
system. The weld flanges are compatible with Stainless  
Steel and Mild steel welding rod material.  
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The Pro-gate50 valve seat is compatible with the Pro-  
gate48 weld flange. If you have an existing Pro-gate48  
weld flange on your manifold, you can mount the Pro-  
gate50 directly onto the flange using the V-Band clamp  
supplied with the Pro-gate50.  
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Secure the Pro-gate50 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 M6 screws to a  
torque value of 14 Nm (10 ft/lbs)  
For best results an attempt should be made if space  
allows to mount the Pro-Gate50 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.  
Best Flow Symmetric Mounting  
Good Flow Angled Mounting  
Symmetric mounting allows an excellent flow of exhaust to the  
Pro-Gate50.  
Angled mounting allows a good flow of exhaust to the Pro-Gate50.  
Wastegate  
Wastegate  
Exhaust gas  
to exhaust  
pipe  
Exhaust Gas  
Exhaust gas  
from manifold  
to exhaust  
pipe  
Exhaust Gas  
from manifold  
Turbocharger Turbine  
Turbocharger Turbine  
Poor Flow 90 Degree Mounting  
Not recommended Less than 90 Degree Mounting  
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and in some circumstances may contribute to over boosting.  
0 degree mounting gives poor exhaust flow to the Pro-Gate50  
An angled mounting as shown is not recommended and gives  
extremely poor exhaust flow to the Pro-Gate50.  
Wastegate  
Wastegate  
Exhaust gas  
Exhaust gas  
to exhaust  
pipe  
to exhaust  
pipe  
Exhaust Gas  
from manifold  
Exhaust Gas  
from manifold  
Turbocharger Turbine  
Turbocharger Turbine  
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ACHIEVING YOUR TARGET BOOST PRESSURE  
There are various factors involved in achieving your target boost pressure including.  
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The size of the spring fitted in your wastegate i.e. the boost pressure achieved by the wastegate 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.  
Turbosmart recommends the ideal setup for achieving your target boost pressure is to use the Pro-Gate50 in conjunction with  
a Turbosmart e-Boost controller.  
IMPORTANT NOTES ON SETTING THE WASTEGATE SPRING PRESSURE  
A stiffer spring should only be used when necessary. The Pro-Gate50 allows for different combinations of spring pressures. All springs  
that are adaptable with the Pro-Gate50 are shown in the table below. The tuner can use combinations of up to 3 springs to achieve the  
following base boost pressures. To aid in the identification of these springs they are supplied colour coded. If this colour coding is not  
clear please use the dimensions in the following table to identity the wastegate spring. Please see the following detailed instructions on  
setting your Pro-Gate50’s spring pressure. The springs chosen should be rated to the lowest boost level desired.  
Changing the springs  
WARNING! Fitting a heavier wastegate spring may 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 spring, before increasing your boost pressure again.  
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Remove the wastegate from the exhaust manifold. Use CAUTION! The wastegate may still be HOT!  
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Hold the cap down in a press or vice. Using a 5mm Allen Key, remove the M6 Socket head cap screws that secure the upper  
wastegate cap. WARNING! The cap is under spring tension, wear safety glasses and remove with care! Slowly back off the  
vice or press and remove the cap.  
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3)  
4)  
5)  
Select and locate the required wastegate spring or combination of inner and outer springs on the upper diaphragm spring  
support. See spring information above for detail on wastegate spring identification and selection.  
Ensure that the diaphragm is inside the diaphragm groove. The six holes on the outer ring of the wastegate diaphragm should  
be in line with the 6 holes in the lower wastegate cap.  
Slowly push the top cap down on the lower diaphragm housing in a vice or press. As the cap reaches the diaphragm, slowly  
turn the cap left and right as you lower the cap to the lower diaphragm housing. Make sure that the convolution of the  
diaphragm is not pinched between the top cap and the lower diaphragm housing. Refit the upper wastegate cap re-using the  
M6 Socket head cap screws. Again you may find it helpful to use a press to hold down the cap with a press or a clamp while  
tightening these screws. Tighten the M6 Socket head cap screws using a 5mm Allen Key and torque to 8 N-m (5.9 lb-ft)  
Diaphragm removal and lower diaphragm housing rotation  
1)  
2)  
3)  
Follow steps 1 and 2 of the spring change instructions.  
Using a pair of circlip pliers, remove the retaining circlip on the diaphragm support.  
Back off the 3 securing grub screws in the top of the diaphragm support, DO NOT REMOVE COMPLETELY FROM  
DIAPHAGM SUPPORT.  
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Remove diaphragm assembly and valve.  
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Remove the 3 M6 counter sunk cap screws and remove lower diaphragm housing. Check that the sealing O-Ring is in good  
condition. Replace if necessary (TS-0501-3004).  
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Refit the lower diaphragm housing in the desire orientation and replace M6 Countersunk screws.  
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Slide the valve back through the guide and place the diaphragm assembly on top of the valve. Apply a small drop of Loctite  
onto the threads of the grub screw and tighten. Make sure that the valve is hard up against the diaphragm assembly.  
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1
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Select and locate the required wastegate spring or combination of inner and outer springs on the upper diaphragm spring  
support. See spring information above for detail on wastegate spring identification and selection.  
)
Ensure that the diaphragm is inside the diaphragm groove. The six holes on the outer ring of the wastegate diaphragm should  
be in line with the 6 holes in the lower wastegate cap.  
0) Slowly push the top cap down on the lower diaphragm housing in a vice or press. As the cap reaches the diaphragm, slowly  
turn the cap left and right as you lower the cap to the lower diaphragm housing. Make sure that the convolution of the  
diaphragm is not pinched between the top cap and the lower diaphragm housing. Refit the upper wastegate cap re-  
using the M6 Socket head cap screws. Again you may find it helpful to use a press to hold down the cap with a press or a  
clamp while tightening these screws. Tighten the M6 Socket head cap screws using a 5mm Allen Key and torque to 8 N-m  
(5.9 lb-ft)  
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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.  
IMPORTANT! Refer to your boost controller instructions for most suitable connection method to an external wastegate.  
Basic setup  
If no boost controller is being used connect the boost pressure source to the “bottom” port as shown. Connect the wastegate “top” port  
to the intake side of the turbo, between the air cleaner and the inlet on the front of the turbocharger. Otherwise connect a short piece of  
the silicon hose and face the vent downwards to stop water or debris entering the top port.  
Top port of wastegate  
vent to atmosphere  
Wastegate  
Bottom port of wastegate  
vent to pressure only  
source  
Turbocharger  
Boost Tee setup  
When using your wastegate in conjunction with a Turbosmart Boost Tee, fit the controller between the boost pressure source and  
“bottom” port as shown. Ensure the arrow on the Boost Tee is pointing in the direction illustrated. Connect the wastegate “top” port to  
the intake side of the turbo, between the air cleaner and the inlet on the front of the turbocharger. Otherwise connect a short piece of the  
silicon hose and face the vent downwards to stop water or debris entering the top port.  
Refer to the instructions supplied with your Boost Tee for further detail if necessary.  
Top port of wastegate  
vent to atmosphere  
Pressure only source to  
Boost Tee  
Wastegate  
Bottom port of wastegate  
to Boost Tee  
Turbocharger  
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e-Boost 2 connection methods  
Turbosmart recommends using the wastegate in conjunction with the Turbosmart e-Boost.  
The first method of installation is a one port connection. If the desired boost level is not achieved i.e. boost level is too low, or not  
controllable, it is recommended that the wastegate spring be changed to a spring which is closer to the desired boost pressure or to trial  
a 2 port connection method.  
There are 3 different 2 port connection methods that can be trialled to achieve different results. The 2 port method (1) can be used if  
there is high exhaust manifold back pressure forcing the valve open. The 2 port method (2) allows the user to achieve the maximum  
boost pressure their turbo system is capable of. If a wide range of boost pressures is desired i.e. 5 40 PSI, a 2 port connection with a  
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port solenoid (sold separately TS-0301-2003) might be needed.  
Single port connection Method  
Port 1 of solenoid vent to atmosphere  
Port 2 of solenoid to bottom port of wastegate  
Port 3 of solenoid to Pressure only source  
Top port vent to  
atmosphere  
Port 1 of solenoid  
vent to atmosphere  
Pressure only to Port  
3 of solenoid  
External wastegate  
Turbocharger  
Bottom port of  
wastegate to port 2  
of solenoid  
*NOTE: An increase in your minimum boost pressure is expected when using any of the 2 port connection methods. Ensure all boost  
set point values and gate pressure values are set to Zero and measure the new minimum boost pressure achieved by this method  
before increasing your Boost Set Point values.  
Two port connection Method (1) (For controlling boost on a turbo system with high back pressure)  
Connect the bottom port of the wastegate and Port 1 of the solenoid to a Pressure only source  
Port 2 of the solenoid to the top port of the wastegate  
Port 3 of solenoid vent to atmosphere  
Solenoid  
Port 1 of solenoid to pressure  
only source  
Port 2 of solenoid to top  
port of wastegate  
Tee Piece  
Wastegate  
Pressure only source  
Bottom port of wastegate  
To pressure only source  
Turbocharger  
Port 3 of solenoid vent  
To atmosphere  
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Two port connection Method (2) (For obtaining maximum boost pressure on your turbo system)  
Port 1 of solenoid to Top port of wastegate  
Port 2 of solenoid to Pressure only source  
Port 3 of solenoid to Bottom port of wastegate  
Solenoid  
Port 1 of solenoid to  
Top port of wastegate  
Port 2 of solenoid to  
pressure only source  
Wastegate  
Turbocharger  
Port 3 of solenoid to  
bottom port of wastegate  
Two port connection Method (3) (For obtaining a wide range of boost pressures e.g. 5 40 PS, note that this method of boost control  
may not provide a smooth boost curve)  
Port A of solenoid to Top port of wastegate  
Port B of solenoid to Bottom port of wastegate  
EX port of solenoid vent to atmosphere  
IN port of solenoid to Pressure only source  
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Port solenoid  
EX Port of solenoid vent  
to atmosphere  
Port A of solenoid to top port of  
wastegate  
IN Port of solenoid to  
pressure only source  
Wastegate  
Turbocharger  
Port B of solenoid to  
bottom port of wastegate  
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ONE YEAR LIMITED WARRANTY  
Turbosmart is a company built on Customer Satisfaction and Service. That is why all of our products go through regimented test procedures before they are  
packaged and shipped. Turbosmart stands behind its products for one full year after purchase. Terms of Warranty, Service and Returns are as follows:  
Limited Warranty: Turbosmart warrants its products to be free from defects in material and workmanship under normal use and if properly installed for a period  
of one year from date of purchase. If found to be defective, it will be replaced or repaired if returned prepaid along with proof of date of purchase. This shall  
constitute the sole remedy of the purchaser and the sole liability of Turbosmart to the extent permitted by law, the foregoing is exclusive and in lieu of all other  
warranties or representations whether expressed or implied, including any implied warranty of merchantability or fitness. In no event shall Turbosmart be liable  
for special or consequential damages. This warranty is only valid on products purchased from Turbosmart Authorized Dealers.  
Service: After the warranty period has expired, repair service is charged based on a minimum and maximum charge rate. (Contact Customer Service for current  
rate).  
Returns: When returning a Turbosmart product for repair, it must be accompanied by a completed Customer Warranty Form and RMA number. To access this  
form please go to our website www.turbosmartonline.com and you will find it on the Downloads page.  
THE TURBOSMART PLEDGE  
DO NOT USE ANY TURBOSMART PRODUCT UNTIL YOU HAVE CAREFULLY READ AND UNDERSTOOD THE FOLLOWING AGREEMENT. Please call if  
you have any questions or do not understand this agreement. Refer to our brochure, website or catalogue for terms and conditions and further information  
regarding your product. Turbosmart appreciates your business and pride ourselves on our customer service. We are always happy to offer you advice and will  
provide you with help in any way we can. The purpose of this agreement is to avoid any problems or hard feelings.  
We sometimes make mistakes, as do our dealers, distributors and suppliers. Even customers can sometimes order the wrong parts. Do not use, modify, install,  
trial assemble, nick, drop, scratch or adjust any part until you first check for any damage. Damage must be reported immediately. NO EXCEPTIONS. If there are  
any components missing please contact your authorized reseller immediately upon receipt of your shipment. Missing components must be reported within five  
(5) business days of receipt. Parts returned for any reason MUST BE IN RESALABLE CONDITION. It is YOUR responsibility, “THE CUSTOMER” to carefully  
package any returns to avoid shipping damage. Insurance is highly recommended. Credit cannot be issued for damaged goods.  
Warranty as to Defects Australian Consumer Law  
1.1  
We warrant for a period of twelve (12) months from the date of supply of the Goods and/or Services that if due to the fault of Turbosmart the Goods  
and/or Services (as the case may be) provided by Us are defective then We will, as determined by Us do one or more of the following:  
1.  
In the case of Goods; the replacement of the Goods, the supply of equivalent Goods, the repair of the Goods, the payment of the cost of  
replacing the Goods or of acquiring equivalent Goods, or the payment of having the Goods repaired; or  
2.  
In the case of Services; the supplying of the Services again, or the payment of the cost of having the Services supplied again.  
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1
.2  
.3  
.4  
You will only be entitled to the benefit of the warranty set out in this pledge, if You have not wholly or partially caused or contributed to the defect  
to the Goods by the misuse of the Goods or the failure to use the Goods in accordance with any specifications or instructions applicable to the Goods.  
The warranty contained in this pledge is provided by Turbosmart Pty Limited of 32 Milton Street North, Ashfield NSW 2131, Australia, Telephone:  
+
(61) 1300 735 506, Email: sales@turbosmart.com.au.  
In order for a You to make a claim on the warranty You must within twelve (12) months of delivery of the Goods or Services give written notice to Us  
at the address specified in clause 1.3 above of the details of any defects in respect thereof. Any Goods referred to in a notice given pursuant to this  
clause should be left in the state and condition in which they were delivered until such time as We or Our duly authorised agent have inspected the  
Goods with such inspection to be carried out within a reasonable time after service of such notice. If the Goods are not so left in the state and condition  
in which they were delivered then the You shall be deemed to have accepted the Goods and the warranty contained in this pledge shall not apply.  
You shall be responsible for all expenses associated with making a warranty claim under this pledge however if the Goods and/or Services are found to  
be defective due to Our fault then We shall reimburse You for any expenses incurred by You in making a warranty claim upon receiving evidence  
satisfactory to Turbosmart to support such expenditure.  
The benefits to You given by the warranty contained in this pledge are in addition to other rights and remedies of You have under a law in relation to  
the Goods or Services to which the warranty relates. In accordance with the Australian Consumer Law We makes the following statement: “Our goods  
come with guarantees that cannot be excluded under the Australian Consumer Law. You are entitled to a replacement or refund for a major failure and  
compensation for any other reasonably foreseeable loss or damage. You are also entitled to have the goods repaired or replaced if the goods fail to be  
of acceptable quality and the failure does not amount to a major failure.”  
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EXCEPT AS PROVIDED BY LAW, THIS LIMITED WARRANTY IS THE ONLY EXPRESS WARRANTY, WHICH APPLIES TO TURBOSMART PRODUCT AS  
EXPRESSLY GIVEN IN LIEU OF ANY OTHER WARRANTY EXPRESSED OR IMPLIED, INCLUDING THAT OF MERCHANTABILITY. ANY IMPLIED  
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AND TIME LIMITATIONS SET FORTH IN THIS LIMITED EXPRESS WARRANTY AND OTHERWISE EXCLUDED.  
EXCEPT FOR THOSE OBLIGATIONS ASSUMED HEREIN, TURBOSMART ASSUMES NO OTHER OBLIGATIONS IN CONNECTION WITH THE SALE OF  
ITS PRODUCTS.  
IN THE EVENT THAT THE INDIVIUDAL PURCHASER DOES NOT AGREE WITH THIS AGREEMENT THE BUYER MAY PROMPTLY RETURN THIS  
PRODUCT, IN A NEW AND UN-USED CONDITION, WITH A DATED PROOF OF PURCHASE, TO THE PLACE OF PURCHASE WITHIN SEVEN (7) DAYS  
FROM THE DATE OF PURCHASE FOR A FULL REFUND.  
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ACCEPTS ITS TERMS AND CONDITIONS.  
Happy motoring!  
The Turbosmart Team  
Turbosmart Pty Limited P.O. Box 264 Croydon, NSW 2132 Australia ABN: 69 081 069 794  
Ph: +61 1300 735 506 Fax: +61 1300 735 509 Email: instructions@turbosmart.com.au  
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