Hey guys! So, you're thinking about slapping a turbo kit onto your 2012 Infiniti G37 sedan? Awesome! That's a serious upgrade, and you're in for a whole new level of performance and fun. The G37 is already a sweet ride, but adding a turbocharger can transform it into a beast. This comprehensive guide will walk you through everything you need to know, from the basics of turbocharging to choosing the right kit and the installation process. We'll cover what a turbo kit is, the benefits it brings, the different types available, important considerations, and even touch on the installation and maintenance. By the end, you'll be well-equipped to make an informed decision and get your G37 roaring!

What is a Turbo Kit, Anyway?

Alright, let's start with the basics. What exactly is a turbo kit? Simply put, a turbo kit is a complete package designed to add a turbocharger to your car's engine. A turbocharger, or turbo for short, is a forced induction system that uses exhaust gases to spin a turbine, which in turn compresses air and forces it into the engine's cylinders. This results in a significant increase in horsepower and torque because more air means more fuel can be burned, leading to a more powerful explosion. This makes your car accelerate quicker, provide more passing power, and generally feel much more responsive.

The kit typically includes a turbocharger, an exhaust manifold (to mount the turbo), an intercooler (to cool the compressed air), piping, wastegate (to control boost pressure), blow-off valve (to release excess pressure), and all the necessary hardware and fittings. Some kits also include fuel injectors and an upgraded ECU (Engine Control Unit) to handle the increased fuel and air flow. Installation can range from relatively straightforward to quite involved, depending on the kit and your mechanical skills. It's crucial to understand that installing a turbo kit is not a small undertaking. It requires careful planning, research, and attention to detail to ensure everything works correctly and safely. Many folks choose to have a professional install the kit, especially if they are new to this type of modification. But for those mechanically inclined, it can be a rewarding DIY project.

The Benefits of Turbocharging Your G37

So, why bother with a turbo kit? The benefits are pretty exciting, especially if you're a performance enthusiast. First and foremost, you'll experience a massive boost in power. Horsepower and torque figures will skyrocket, leading to quicker acceleration and a more thrilling driving experience. Your G37 will feel like a whole new car, capable of blistering acceleration and impressive top-end speed. But it's not just about straight-line performance. A turbocharger can also improve your car's responsiveness, making it feel more eager and lively in everyday driving. The added power makes passing on the highway easier and merging into traffic a breeze.

Another significant benefit is the potential for increased fuel efficiency. While it might seem counterintuitive, a well-tuned turbo system can actually improve fuel economy in some driving conditions. This is because the turbocharger allows the engine to operate more efficiently, especially at lower speeds and under lighter loads. Of course, the gains in fuel efficiency depend on your driving habits and how you tune the system. If you're constantly flooring it to enjoy the added power, your fuel consumption will likely increase. Also, turbocharging your engine can significantly enhance the overall driving experience, delivering a thrilling and adrenaline-pumping ride every time you get behind the wheel. The feeling of being pushed back into your seat as the turbo spools up is addictive, transforming ordinary drives into exhilarating adventures.

Choosing the Right Turbo Kit for Your 2012 G37 Sedan

Alright, choosing the right turbo kit is a critical decision. It's not a one-size-fits-all situation. Several factors come into play, including your budget, your performance goals, and your mechanical abilities. There are numerous kits available for the 2012 Infiniti G37, each offering different levels of performance and complexity. Let's break down some of the key considerations.

Types of Turbo Kits

There are generally two main categories of turbo kits: bolt-on kits and custom kits. Bolt-on kits are designed to be relatively easy to install, often using existing mounting points and requiring minimal modifications to your car. They typically include all the necessary components and instructions, making them a good choice for DIY enthusiasts. However, bolt-on kits might offer less flexibility in terms of tuning and performance compared to custom kits. Custom kits, on the other hand, are built specifically for your engine and performance goals. They allow for a more tailored approach, using high-quality components and offering greater potential for power gains. However, custom kits are typically more expensive and require more expertise to install and tune. They're often best suited for those looking for maximum performance and are willing to invest the time and money.

Key Components of a Turbo Kit

• Turbocharger: This is the heart of the system. Choose a turbocharger that matches your performance goals. Larger turbos can deliver more power but might experience more turbo lag (the delay between pressing the accelerator and the turbo spooling up). Smaller turbos offer quicker response but may have limitations on overall power.
• Intercooler: This cools the compressed air before it enters the engine, increasing its density and improving performance. Larger intercoolers are generally more effective but can be more challenging to fit.
• Wastegate: This controls the boost pressure by bypassing exhaust gases from the turbine. A reliable wastegate is essential for preventing overboosting and protecting your engine.
• Blow-off Valve (BOV): This releases excess pressure when the throttle closes, preventing compressor surge and prolonging the life of the turbocharger.
• ECU Tuning: After installing a turbo kit, you'll need to tune the ECU to optimize the engine's performance. This involves adjusting fuel delivery, ignition timing, and other parameters to match the increased airflow.

Budget and Performance Goals

Set a realistic budget for your turbo kit, including the cost of the kit itself, installation, tuning, and any supporting modifications. Decide on your performance goals. Do you want a modest power increase for daily driving, or are you aiming for a high-horsepower build for track use? Your goals will determine the type of kit and the components you choose. If you're looking for a reliable, street-friendly setup, a bolt-on kit with a moderate power increase might be sufficient. If you want maximum performance and are prepared to spend more, a custom kit with high-quality components is the way to go.

Installation and Tuning Your Turbo Kit

Alright, so you've got your turbo kit. Now comes the installation process. This is where things can get a little tricky, so make sure you're prepared. You'll need a good understanding of automotive mechanics, and it's essential to have the right tools and a clean workspace.

The Installation Process

1. Preparation: Before you begin, disconnect the car's battery to prevent electrical shorts. Gather all the tools you'll need, including wrenches, sockets, screwdrivers, and a jack and jack stands to lift the car safely.
2. Removal of Existing Components: Remove any components that interfere with the turbo kit installation, such as the exhaust manifold, catalytic converter, and intake system. Follow the instructions that come with your kit.
3. Installation of Turbocharger and Manifold: Mount the exhaust manifold and turbocharger to the engine, using the provided hardware. Ensure all connections are secure and tight.
4. Intercooler and Piping: Install the intercooler and run the piping to connect it to the turbocharger and the intake manifold. Make sure all connections are airtight.
5. Wastegate and BOV: Install the wastegate and blow-off valve, connecting them to the appropriate lines.
6. Fuel System and ECU: Depending on the kit, you might need to upgrade the fuel injectors and fuel pump. Install these components and connect them to the fuel lines. Connect the ECU or reprogram the existing one.
7. Final Checks: Double-check all connections, tighten all bolts, and make sure everything is secure.

Tuning the ECU

After installing the turbo kit, you'll need to tune the ECU to optimize the engine's performance. Tuning involves adjusting fuel delivery, ignition timing, and other parameters to match the increased airflow. This is a critical step, and it's best left to a professional tuner with experience in turbocharging. The tuner will use a dynamometer (dyno) to measure the car's power output and make adjustments to the ECU to achieve the desired performance and reliability.

Maintenance and Troubleshooting

Once your turbo kit is installed and tuned, regular maintenance is essential to keep everything running smoothly. Change your oil and filter more frequently than you would with a stock engine, as turbochargers put more stress on the engine components. Use high-quality synthetic oil, which can withstand the high temperatures generated by the turbocharger. Inspect the turbocharger and related components regularly for leaks, cracks, or other signs of damage.

Troubleshooting Common Issues

• Boost Leaks: Check all connections and piping for leaks. A boost leak can cause a loss of power and poor performance.
• Turbo Lag: If you experience excessive turbo lag, the turbocharger might be too large for your engine or the ECU tuning might need adjustment.
• Overboosting: Overboosting can damage your engine. Make sure the wastegate is functioning correctly and the boost pressure is within the specified limits.
• Engine Knock: Engine knock (detonation) can occur if the fuel mixture is too lean or the ignition timing is too advanced. This can cause severe engine damage. Get the ECU tuned by a professional.

Conclusion: Turbocharging Your 2012 Infiniti G37 Sedan

So, there you have it, guys! Adding a turbo kit to your 2012 Infiniti G37 sedan is a fantastic way to unlock serious power and take your driving experience to the next level. Remember to do your research, choose the right kit for your needs and budget, and consider having a professional install and tune the system. With the right kit and careful attention to detail, you can transform your G37 into a thrilling machine that's sure to turn heads. Drive safe, and enjoy the boost!