Product Name:
| GenV IWG (Twin Port) Wastegate Actuator
|
Product Description:
| GenV IWG (Twin Port) Wastegate Actuator Suit Garrett G25 14 Psi
|
Product Number:
| |
Important Notes on Your Internal Wastegate Actuator
- Turbosmart accepts no responsibility whatsoever for incorrect installation of this product which is potentially hazardous and can cause serious engine damage or personal injury.
- Consult your local specialist before setting your desired boost pressure, setting boost beyond your engines capability may result in engine damage.
- Use only high-quality fittings ensuring maximum sealing reliability. Optional Turbosmart Fitting kit available.
Recommendations
- Allow for adequate cool airflow around the diaphragm housing
- DO NOT Mount the wastegate so that the top diaphragm housing
is less than 100mm from a heat source
- Turbosmart recommends
that your wastegate is fitted by an appropriately qualified technician.
- 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.
- 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.
Kit Contents
Please check that the following items have been provided in your Internal Wastegate packaging.
Part
| Description | Use |
1 | Turbosmart
Gen V IWG
| Main unit
|
2 | Rod
Kit
| Rod and clevis required for fitment to Garrett G25 Turbocharger
|
3 | Spring kit
| 4x springs: 2x inner, 1x middle, 1x outer (1x
spring pre-installed)
|
4 | Fitting kit
| 2x 1/8” NPT nipple, 4x 1/8” NPT blanking
plugs (1x pre-installed)
|
5 | Turbosmart Sticker
| Turbosmart sticker
|
6 | Turbosmart Position Sensor
| Turbosmart HE Sensor (Sensor Cap Model Only)
|
7 | IWG Actuator Collar Tool
| Remove actuator collar to change spring |
- 10mm open end spanner
- Square drive ratchet wrench
- Torque wrench (3/8” drive)
- Non-marking spanners to tighten
fittings
- 3/16” hex key
- Turbosmart IWG collar tool
Suggested Sealants
- Loctite 243 Thread Locker
- Loctite 567 Thread Sealant
Fitting Your GENV Wastegate
Mounting your New
Turbosmart Gen V IWG Wastegate
Slide the actuator
head through the turbocharger mounting bracket, be sure the ball joint assembly
has been removed form the actuator canister otherwise the unit cannot be
assembled onto the bracket. Once mounted on the bracket, secure nuts to hold
actuator in place, be sure at this point to determine the orientation of the
actuator as it can be flipped 180º on the actuator bracket to allow for fitting
clearance, or aligning the actuator to your liking without need to disassemble
the actuator.
CAUTION! Ensure nuts are tightened.
Install Actuator through bracket.
Actuator secured
onto bracket.
Install the
ball joint
Once the actuator has been mounted to
the bracket, install the ball joint onto the main shaft out the actuator,
orientation of the ball joint is not important. Use the flats machined into the
ball joint to hold the ball joint in place as you tighten the nut on the main
shaft to prevent unnecessary movement of the ball joint during operation.
Applying
Actuator Preload / Ensuring Wastegate Flap is Close
CAUTION! This step is important!
In order to ensure the actuator does not suffer any stiction/temperature creep issues or the wastegate flap does not stay slightly open, it is important to apply a small amount (2mm/0.078”) of preload to the wastegate actuator.
To correctly preload the wastegate, ensure wastegate flap is in the full closed position by holding the actuator flap as far closed as possible, wind the adjuster nut onto the back face of the actuator flap as shown below (in red) until hand tight
To apply 1mm/0.039” preload, simply
turn the adjuster nut 1 full turn in the clockwise direction.
To lock the actuator in this
position, turn the locking nut by hand until finger tight, then proceed to
tighten nut firmly to secure actuator in place. (6.5Nm / 4.8 ft lb)
If a regulated air source is
available on-hand, apply the air pressure of the spring installed to the
actuator (5, 7 or 14psi) and observe the rod, the rod should begin to move
slowly and freely over the range of travel as air pressure increases. If the rod
does not move at all with increasing air pressure, proceed to troubleshooting.
Start Engine and Check for Leaks
Congratulations, your Gen V wastegate
is installed and ready for use. Double check all fittings, lines and mountings
then proceed to start engine and check for leaks.
How to Change Your GENV Wastegate Spring
The Gen V wastegate has a
variety of springs to suit different boost levels. Turbosmart provides the Gen
V wastegate pre-installed with a 14psi spring. With your wastegate 3 springs
will be provided, 5psi inner, 7psi middle and 14psi outer. Different spring
combinations may be required to suit different boost requirements and tuning.
- Remove
Wastegate From Turbocharger
- Remove boost pressure source hose from the
wastegate
- Remove preload from wastegate by undoing
preload nuts
- Remove ball joint locking nut
- Remove rod from actuator and turbo assembly
- Remove ball joint assembly
- Remove wastegate actuator from bracket
CAUTION! Allow engine to cool down before removing your GenV wastegate.
Remove Top Cap
Prior to removing the GenV
wastegate cap, remove all fittings from the ports. Press down with light to
medium load on the cap in a press or vice. Unscrew locking collar with the
large end of the provided collar tool in an anti-clockwise direction until
completely disengaged and slowly remove tension from the press or vice allowing
the spring to expand, finally remove cap when the spring has stopped expanding.
CAUTION! Use soft jaws to prevent cosmetic damage.
Configure wastegate with preferred spring combination of
inner, middle and outer springs.
Familiarise Yourself
with Cap and Body Notches
Locate cap and body notches
and grooves which dictate the alignment of the cap. These notches are used to
locate the cap onto the body and must be aligned prior to compression of the
cap onto the body
CAUTION! Ensure notches are aligned and seated home correctly prior to exerting force to tighten collar, permanent damage will occur if these are not aligned correctly.
Using a press or vice,
compress the cap onto the body ensuring the notches are remaining aligned. Once
the cap has seated home onto the body, screw the collar down by hand in a
clockwise direction. While still in the press or vice, Tighten the collar
further with the collar tool until the collar will not turn.
CAUTION! Maintain downward pressure on cap while tightening collar or non-repairable thread damage will occur.
Reinstall fittings to the cap of the wastegate using fresh
Loctite 567 thread sealant.
Reinstall Gen V Wastegate
- Install wastegate actuator assembly to bracket
- Install ball joint assembly
- Install ball joint lock nut
- Install rod to ball joint and turbocharger
- Apply wastegate preload
- Lock adjuster nuts
- Connect wastegate signal lines and check for
leaks
If an adjustable air source is available,
connect to signal ports and check for smooth free operation of wastegate, if
wastegate does not move with increasing air pressure, proceed to
troubleshooting.
There are various factors involved in achieving your target
boost pressure including.
- 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 GenV Wastegate in conjunction with a
Turbosmart eBoost controller.
Important Notes on Setting the Wastegate Spring Pressure
A stiffer spring should only
be used when necessary. The Gen V Wastegate allows for different combinations
of spring pressures. All springs that are adaptable with the Gen V IWG are
shown in the table below. The tuner can use combinations of up to 4 springs to
achieve the following base boost pressures. To aid in the identification of
these springs they are supplied colour coded. Please see the following detailed
instructions on setting your Gen V IWG’s spring pressure. The springs chosen
should be rated to the lowest boost level desired.
Location | Inner | Inner | Middle | Outer |
Pressure | 3psi | 5psi | 7psi | 14psi |
Colour | Black | Grey | Pink | Red |
3psi | ● | | | |
5psi | | ● | | |
7psi | | | ● | |
10psi | ● | | ● | |
12psi | | ● | ● | |
14psi | | | | ● |
17psi | ● | | | ● |
19psi | | ● | | ● |
21psi | | | ● | ● |
24psi | ● | | ● | ● |
26psi | | ● | ● | ●
|
Wiring
Your new Turbosmart sensor
cap comes with sensor pre-installed into the cap with unterminated wires for
you to fit the connector of your choice.
Wire | Note | Rating |
Red | Sensor Supply (Vsup) | 4.5-5.5 Vdc |
Black | Sensor Ground (V0) | 0V |
White | Sensor Output (Vout) | 0-Vsupply |
Connect the wires to your
data logger accordingly. Use a high-quality connection to reduce noise and
calibration fluctuation.
CAUTION! Ensure that the wiring is properly shielded from external heat sources.
To ensure longevity from the sensor, ensure
adequate airflow is supplied directly to the sensor to avoid overheating or
sensor failure.
Turbosmart
HE sensor has an operation temperature window of -40C up to 170ºC (340ºF)
junction temperature, for temperatures outside of this window the VOUT will revert to less than 2.5V
Temperature
exposure above 260ºC (500ºF) can cause permanent damage to the sensor.
Calibration
Rod Travel (mm) | VOUT |
0 | 0.439 |
2 | 1.21 |
4 | 1.58 |
6 | 1.84 |
8 | 2 |
10 | 2.13 |
12 | 2.21 |
14 | 2.27 |
16 | 2.32 |
18 | 2.36 |
NOTE! For best results, each
wastegate should be calibrated to your setup.
- Wastegate
not actuating - Confirm signal hose is plumbed to a pressure only source,
confirm preload during installation
- Poor
wastegate actuation - Ensure signal hose is not shared and is sourced as close
to the compressor as possible, check seal on fittings.
- Poor
wastegate actuation – Confirm no obstructions in actuator rod path.
- Boost
creeping at high rpm - Wastegate flow path is poor, wastegate is too small for
the application, ensure ball joint is not seized
- Failing the above, submit a Technical Support Query Form with information about your engine, oil type and photos of the installation and one our expert technicians will respond as soon as possible.