Table of Contents
The Audi S4 is a beloved model among car enthusiasts, especially those who appreciate the blend of performance and luxury. One of the most significant upgrades you can make to this vehicle is the installation of a 2.7T turbocharger. This guide will walk you through the step-by-step process of upgrading your Audi S4 from stock to an impressive 450 horsepower.
Understanding the Basics
Before diving into the installation process, it’s essential to understand what a turbocharger does and how it enhances your vehicle’s performance. A turbocharger increases the engine’s efficiency and power output by forcing more air into the combustion chamber.
Tools and Materials Needed
- 2.7T Turbocharger Kit
- Socket Set
- Torque Wrench
- Ratchet and Extensions
- Wrenches
- Intercooler Piping
- New Gaskets and Seals
- Fuel Injectors
- ECU Tune
- Oil and Coolant
Preparation Steps
Before you start the installation, ensure you have a clean workspace and all necessary tools and materials at hand. Follow these preparation steps:
- Disconnect the battery to prevent any electrical issues.
- Drain the engine oil and coolant to avoid spills.
- Remove the stock intake system and exhaust components.
- Take note of all connections and hoses to ensure proper reinstallation.
Step-by-Step Installation
1. Remove the Stock Turbocharger
To begin the installation, you need to remove the stock turbocharger. Follow these steps:
- Unbolt the exhaust manifold from the turbo.
- Disconnect the oil feed and return lines.
- Carefully detach the turbo from the engine.
2. Install the New Turbocharger
Once the stock turbo is removed, it’s time to install the new 2.7T turbocharger. Ensure you follow these steps:
- Place new gaskets on the exhaust manifold.
- Attach the new turbocharger to the manifold.
- Reconnect the oil feed and return lines securely.
3. Upgrade the Intercooler
Upgrading the intercooler is crucial for maintaining optimal performance. Here’s how to do it:
- Remove the stock intercooler from the front of the vehicle.
- Install the new intercooler, ensuring all connections are tight.
- Connect the intercooler piping to the turbocharger and throttle body.
4. Upgrade Fuel Injectors
To support the increased power, upgrading your fuel injectors is necessary. Follow these steps:
- Remove the intake manifold to access the fuel rail.
- Replace the stock fuel injectors with high-flow injectors.
- Reinstall the intake manifold securely.
5. Reconnect All Components
Once all upgrades are complete, it’s time to reconnect everything:
- Reconnect all hoses and electrical connections.
- Ensure all bolts are tightened to the manufacturer’s specifications.
- Double-check for any leaks or loose connections.
6. ECU Tune
To maximize the performance of your new turbo setup, an ECU tune is essential. This step involves:
- Using a tuning software to adjust fuel maps and boost levels.
- Ensuring the vehicle runs efficiently with the new hardware.
- Testing the vehicle on a dyno to confirm performance gains.
Final Checks and Testing
After completing the installation, perform these final checks:
- Refill engine oil and coolant.
- Reconnect the battery.
- Start the engine and listen for any unusual noises.
- Take the vehicle for a test drive to ensure everything functions correctly.
Conclusion
Upgrading your Audi S4 with a 2.7T turbocharger can significantly enhance its performance, taking it from stock to an impressive 450 horsepower. By following this step-by-step guide, you can ensure a successful installation and enjoy the thrilling driving experience that comes with it.