Garrett t2 turbocharger

Types of Garret T2 Turbochargers

Garrett T2 turbocharger is a common turbocharger used in many vehicles. The T2 turbocharger has different types, each designed to meet specific needs. Here are some common Garrett T2 turbocharger types.

• Standard T2 Turbocharger:

  The standard T2 turbocharger is the most common type. It is reliable and affordable. Because of these features, many manufacturers use them in their vehicles. The standard T2 turbocharger is suitable for casual driving. It doesn't generate a lot of power.

• Ball Bearing T2 Turbocharger:

  The ball-bearing T2 turbocharger uses ball bearings in its center section. This reduces friction and helps the turbine spool up quickly. As a result, the lag is minimal, and the response is instantaneous. The ball-bearing T2 turbocharger is perfect for racing cars and other performance vehicles.

• Water-cooled Turbocharger:

  The water-cooled T2 turbocharger uses the vehicle's cooling system to cool the turbo. The cooled air increases the turbo's efficiency. Plus, the water-cooled turbo can sustain longer boost periods. This turbo is suitable for heavy-duty trucks and other vehicles that require sustained power.

• Electric Turbo Compounds:

  The electric turbo compounds use an electric motor to assist the turbine. The electric motor can spool up the turbine quickly, completely eliminating turbo lag. The electric turbo is becoming popular in new electric hybrid vehicles.

• Variable Geometry Turbocharger:

  Garrett also produces the variable geometry turbocharger. The VGT turbo changes the geometry of the turbine blades. This optimizes the turbo for different engine speeds. The VGT turbo improves power delivery and fuel efficiency. However, the VGT turbo is expensive and requires more maintenance.

Specifications and Maintenance of the Garrett T2 Turbocharger

Specifications of the Garrett T2 Turbocharger are as important as understanding how it works. The specification gives a detailed analysis of the turbocharger's capability and performance. Here are some of the specifications of the T2 Turbocharger:

• Compressor section

  Its diameter is 1.97 inches (50mm). The airflow capacity is 29 lb/min (13.1 kg/min), and the pressure ratio is 3.1.

• Turbine section

  The diameter is 1.61 inches (41mm). The turbine wheel is made of cast iron, and it has 9 blades.

• Bearings

  It has journal bearings and a 3-bearing system.

• Oil inlet and outlet

  The oil inlet port has a 0.10-inch (2.5mm) diameter, while the oil outlet port has a 0.20-inch (5mm) diameter.

• Cooling

  The turbocharger is water-cooled.

• Turbocharger

  The turbocharger is a Garrett T25 Turbo.

• Wastegate

  Its wastegate actuator is pressure-controlled, with a crack pressure of 8.5 psi (59 kPa).

• Flange type

  The exhaust manifold flange type is T2.

Understanding the specifications of the Garrett T2 Turbocharger is not enough, as maintenance plays a crucial role in its performance. This section will highlight the maintenance requirements and procedures of the T2 Turbocharger.

It is important to always follow the manufacturer's instructions if there are any for maintaining the T2 Turbochargers. Generally, to ensure the T2 Turbochargers are in good condition, do the following:

• Oil: The T2 Turbochargers require clean oil to function optimally. It is important to always change the oil as at when due and according to the manufacturer's specification. When changing the oil, make sure the filter is new.
• Coolant: Like oil, the T2 Turbochargers need a good cooling system to function well. Always check the level and quality of the coolant to ensure it is in good condition.
• Inspection: Regular inspection of the T2 Turbochargers is essential. During inspection, pay attention to the following parts: the turbine, compressor, actuator, wastegate, and housing. Look for cracks, damage, and other signs of wear.
• Cleaning: The Garrett T2 Turbochargers should be cleaned regularly to prevent dirt and oil deposits that could affect their performance. While cleaning, ensure to use the right cleaning product for each part of the turbocharger.
• Installation: It's important to ensure the T2 Turbochargers are correctly installed. If there are any installation guides from the manufacturer, follow them to the letter. During installation, ensure all the bolts and nuts are properly tightened, and there are no leaks.

How to Choose of Garrett T2 Turbocharger

Choosing the right turbocharger for a specific application can be challenging, but it doesn't have to be. Here are some important factors to consider when choosing a T2 turbocharger:

• Consider the Engine Size

  When selecting a T2 turbocharger, buyers should consider the engine size. Larger engines generate more exhaust gases, which means they can support a bigger turbo. On the other hand, smaller engines require a smaller turbo to prevent lag and achieve optimal boost pressure.

• Understand Performance Goals

  What kind of performance is garrett turbo fans going to achieve? Buyers should consider whether they need more low-end torque for towing or high-end power for racing. If it's low-end torque, a turbo with a quick spool time is needed. For racing, a turbo that can sustain high airflow at peak RPM is required.

• Evaluate Vehicle Modification

  Some turbos are more suitable for stock vehicles, while others may require modifications such as upgraded intercoolers or exhaust systems. Find out if the turbo can work seamlessly with the existing components or if modifications are necessary.

• Consider Quality and Reliability

  Choose turbos built by reputable manufacturers from quality materials. Reliable turbos ensure consistent performance over time without frequent failures or replacements being required.

How to DIY and Replace Garrett T2 Turbocharger

Some tools needed to replace the T2 turbo by oneself include:

• Socket set
• Torque wrench
• Oil drain pan
• New oil drain gasket
• New oil feed gasket
• New exhaust manifold gasket
• New turbo oil line
• New turbo coolent line
• New turbo exhaust down pipe
• New turbocharger
• Oil filter wrench
• Oil catch tank
• Oil
• New engine oil
• New turbo oil feed line
• Silicone grease
• New engine coolant
• New exhaust manifold
• New oil drain pipe

Replacing the Garrett T2 turbo is a step-by-step procedure. One has to take their time and be careful so as not to damage any part of the engine. Here is a step-by-step guide on how to replace the T2 turbo.

• 1. Prepare the vehicle: Before replacing the turbo, it is important to prepare the car. One can do this by disconnecting the battery and draining the engine coolant.
• 2. Lift the vehicle: The next step after prepare the car is to lift it. One can do this by jacking up the vehicle and placing jack stands under it.
• 3. Remove the exhaust downpipe: Removing the exhaust downpipe is the third step. One can do this by removing the bolts that hold the downpipe in place.
• 4. Remove the oil lines: One can do this by removing the oil lines that supply oil to and drain oil from the turbo. Be careful when doing this as oil will leak from the lines.
• 5. Remove the cooling lines: The next step is to remove the cooling lines that supply coolant to the turbo. Like the oil lines, be careful when removing the cooling lines as coolant will leak from them.
• 6. Remove the turbo bolts: One can do this by removing the bolts that hold the turbo to the exhaust manifold and the downpipe. Once the bolts are removed, the turbo can be pulled away from the exhaust manifold and downpipe.
• 7. Disconnect the wastegate actuator: The next step is to disconnect the wastegate actuator from the turbo. This can be done by removing the cotter pin that holds the actuator rod to the wastegate.
• 8. Remove the old turbo: Now the old turbo can be removed from the car. This can be done by lifting it out from the engine bay.
• 9. Install the new turbo: The new turbo can be installed by reversing the steps above. First, the new turbo is connected to the wastegate actuator, then it is installed into the car, and the actuator rod is reconnected to the wastegate.
• 10. Reinstall the exhaust downpipe: One can do this by reinstalling the downpipe to the turbo and tightening the bolts to the exhaust manifold.
• 11. Reconnect the oil lines: The next step is to reconnect the oil lines to the turbo. Make sure to use new gaskets and tighten the bolts to the specified torque.
• 12. Reconnect the cooling lines: One can do this by reconnecting the cooling lines to the turbo. Again, use new gaskets and tighten the bolts to the specified torque.
• 13. Reconnect the wastegate actuator: The next step is to reconnect the wastegate actuator to the turbo. Make sure to reconnect it properly so the wastegate functions correctly.
• 14. Reassemble the intake piping: One can do this by reassembling the intake piping to the turbo, connecting the bypass valve, and tightening all clamps.
• 15. Reconnect the vacuum lines: The next step is to reconnect the vacuum lines to the wastegate actuator and the bypass valve.
• 16. Reinstall the engine cover: One can do this by reinstalling the engine cover and reconnecting all electrical connections.
• 17. Lower the vehicle: The last step is to lower the vehicle by removing the jack stands and lowering it off the jack.

FAQ

Q1: How long does a Garrett T2 turbo last?

A1: Generally, the expected turbo lifespan is between 150,000 and 200,000 miles. However, the number can vary depending on how well the turbo is maintained.

Q2: What causes turbo failure?

A2: There are several factors that can cause turbo failure. Some of them include the following: oil contamination, oil starvation, and foreign objects entering the turbine.

Q3: How can turbo failure be prevented?

A3: To prevent turbo failure, users are advised to ensure proper turbo maintenance. Additionally, using high-quality engine oil and filters can help prevent contamination.