50 Homemade Rear Mount Turbo

1994 Infiniti Q45 rear mount turbo project HomemadeTurbo DIY Turbo Forum
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Welcome to our blog where we explore the world of automotive modifications and upgrades. In today's article, we will be diving into the fascinating world of homemade rear mount turbo systems. Many car enthusiasts are constantly seeking ways to increase the performance and power of their vehicles, and one popular method is by installing a rear mount turbo. This unique setup offers several advantages over traditional front mount turbos, and in this article, we will be discussing the benefits, the installation process, and some important tips to keep in mind when considering a homemade rear mount turbo system. So, if you're ready to take your car's performance to the next level, let's get started!

What is a Rear Mount Turbo?

Before we delve into the details of a homemade rear mount turbo, let's first understand what exactly this modification entails. A rear mount turbo, as the name suggests, is a turbocharger that is mounted at the rear of the vehicle, typically near the rear bumper or underneath the trunk. Unlike traditional front mount turbos that are positioned near the engine, a rear mount turbo offers several advantages such as reduced heat transfer, improved weight distribution, and easier access for maintenance and repairs.

Advantages of a Rear Mount Turbo

1. Reduced Heat Transfer: By positioning the turbocharger at the rear of the vehicle, the heat generated by the turbo is effectively kept away from the engine bay. This helps in reducing the overall temperature under the hood, which can have a positive impact on engine performance and longevity.

2. Improved Weight Distribution: Placing the turbocharger at the rear of the vehicle can help in achieving better weight distribution, especially in rear-wheel-drive cars. This can result in improved handling and stability, especially during high-speed maneuvers.

3. Easier Access for Maintenance and Repairs: Unlike front mount turbos that are often buried deep within the engine bay, rear mount turbos are more accessible. This makes routine maintenance tasks such as oil changes or turbo inspections much easier and less time-consuming.

Installing a Homemade Rear Mount Turbo

If you're considering installing a homemade rear mount turbo system in your vehicle, there are a few key steps and considerations to keep in mind. While the process may vary depending on the make and model of your car, the following steps will provide a general overview of the installation process.

Step 1: Research and Planning

Before diving into the installation process, it's essential to conduct thorough research and planning. This includes understanding the specific requirements of your vehicle, researching compatible turbochargers, and gathering all the necessary tools and materials for the installation.

Step 2: Selecting the Turbocharger

Choosing the right turbocharger for your rear mount setup is crucial to ensure optimal performance and reliability. Factors to consider when selecting a turbocharger include the desired boost levels, airflow capacity, and compatibility with your engine.

Step 3: Fabricating the Mounting Brackets

Since homemade rear mount turbo setups are not off-the-shelf products, you will need to fabricate custom mounting brackets to securely attach the turbocharger to the rear of your vehicle. This step may require welding and fabrication skills, or you can seek assistance from a professional if you're not comfortable with these tasks.

Step 4: Routing the Exhaust and Intake Piping

Once the mounting brackets are in place, you will need to route the exhaust and intake piping from the engine to the rear-mounted turbocharger. This requires careful planning and precise measurements to ensure proper fitment and optimal airflow.

Step 5: Tuning and Calibration

After the physical installation is complete, it's crucial to tune and calibrate your vehicle's engine management system to accommodate the increased airflow and boost levels provided by the rear mount turbo. This step is best left to professionals with experience in engine tuning to ensure optimal performance and reliability.

Important Tips for a Homemade Rear Mount Turbo

Now that we've covered the basic installation process, let's discuss some important tips and considerations to keep in mind when embarking on a homemade rear mount turbo project.

1. Seek Professional Assistance

Unless you have extensive experience and knowledge in automotive modifications, it's highly recommended to seek professional assistance for the installation of a rear mount turbo. This will ensure that the installation is done correctly and minimize the risk of damage to your vehicle.

2. Ensure Proper Cooling

Since the turbocharger will be located at the rear of the vehicle, it's essential to ensure proper cooling to prevent overheating. This can be achieved by installing additional cooling fans or heat shields to protect sensitive components from excessive heat.

3. Consider Upgrading Supporting Components

Installing a rear mount turbo can put additional stress on various components of your vehicle, such as the engine, transmission, and drivetrain. It's important to consider upgrading these components to handle the increased power and torque generated by the turbocharger.

4. Regular Maintenance and Inspections

To ensure the longevity and reliability of your rear mount turbo setup, regular maintenance and inspections are essential. This includes checking for any signs of oil leaks, inspecting the exhaust and intake piping for damage or leaks, and monitoring the overall performance of the turbocharger.


Installing a homemade rear mount turbo can be an exciting and rewarding project for car enthusiasts looking to boost their vehicle's performance. By following the steps outlined in this article and keeping the important tips in mind, you can successfully install a rear mount turbo and enjoy the benefits of increased power and improved performance. However, it's important to approach this modification with caution and seek professional assistance if you're unsure about any aspect of the installation process. So, go ahead and take your car to the next level with a homemade rear mount turbo!