Ultimate Guide to V-Mount Intercooler Setups for Mazda RX-7s

An Introduction to V-Mounts for Mazda RX-7s

The Mazda RX-7 has long been a favorite among automotive enthusiasts for its unique rotary engine design and agile handling. Since its debut in 1978, each generation of the RX-7 has built a loyal following in the tuner community. One popular modification for maximizing the RX-7's performance potential is the addition of a V-mount intercooler setup.

What is a V-Mount Intercooler?

An intercooler is a device used to cool the air intake charge after it has been compressed by a turbocharger or supercharger. Cooler intake air is denser, allowing more oxygen into the engine for better combustion and power output. The term "V-mount" refers to the way the intercooler core is oriented - shaped like the letter V and mounted above the engine with the outlet pipes angling downward into the intake manifold.

On a Mazda RX-7, a front-mount intercooler is located in front of the radiator, where it obstructs airflow and takes up valuable space. A V-mount intercooler relocates the core to a higher position, unobstructing the radiator while still receiving sufficient airflow. V-mounts come in air-to-air and air-to-water designs, the latter offering greater cooling capacity.

Benefits of Adding a V-Mount Intercooler

Here are some of the key benefits RX-7 owners can expect when upgrading to a V-mount intercooler setup:

• Increased power output - More efficient intercooling allows for lower intake temperatures and increased boost pressure, resulting in sizable horsepower and torque gains.
• Improved throttle response - Cooler charge air densifies quicker when accelerating, reducing turbo lag.
• Enhanced reliability - Lower intake temperatures help prevent pre-ignition and detonation issues.
• More tunability - The greater thermal overhead opens up more aggressive tuning options.
• Weight savings - Ditching the bulky front-mount intercooler sheds pounds from the front end.
• Cleaner engine bay - Removing obstructions improves aesthetics and accessibility.

With the ability to support up to 700 horsepower or more, the V-mount design is ideal for high-boost RX-7 turbo builds. Even milder street builds can benefit from the cooler intake temperatures and crisper throttle response.

Implementing a V-Mount Setup

Swapping to a V-mount intercooler requires some modifications for proper fitment and performance:

• Fabricating mounting brackets to securely attach the core above the engine bay.
• Relocating components like ECUs, batteries, reservoirs out of the way.
• Running new hard intercooler piping, using quality silicone couplers and T-bolt clamps.
• Upgrading the intake manifold and throttle body to match the piping.
• Tuning the ECU to account for increased airflow and performance capability.

While complex, a well-executed V-mount set can transform an already capable turbo RX-7 into a true monster. With custom turbo kits becoming commonplace, a V-mount intercooler is a natural supporting mod to optimize their output.

Wrapping Up

V-mount intercooler setups enable Mazda RX-7s to make big power reliably. Relocating the intercooler core from the crowded engine bay to an elevated position is an elegant solution for greater efficiency. The improved airflow, cooler charge temperatures, and reduced intake lag contribute to formidable performance gains. With skilled fabrication and tuning, RX-7s will benefit tremendously from upgrading to a V-mount.

Thanks for reading! Feel free to contact me if you have any other topics in mind.

FAQs

What are the main benefits of a V-mount intercooler?

The main benefits are increased power output, improved throttle response, enhanced reliability, more tunability, weight savings, and a cleaner engine bay.

How much power can I expect to gain with a V-mount?

You can typically expect power gains of 50-100 WHP or more with a properly designed and tuned V-mount intercooler setup.

What kind of modifications are needed to install a V-mount?

Some common modifications include fabricating mounting brackets, relocating components for clearance, running new hard intercooler piping, upgrading the intake manifold and throttle body, and tuning the ECU.

Is a V-mount intercooler hard to install?

Yes, it is quite involved compared to a front-mount intercooler. Proper fabrication skills and tuning knowledge are recommended to install a V-mount setup correctly.

Can I run high boost safely with a V-mount?

Yes, V-mount intercoolers can support very high boost (700hp+) reliably due to their greater cooling capacity.