High end cooling – PWR Radiators

Evolution of Design: Advancing Cooling Technology for Your Jaguar

At Swallows Racing, we believe that true innovation comes from a deep understanding of both technology and the science behind it. By applying this knowledge, we create superior components that significantly outperform the ageing, mass-produced original Jaguar units. While manufacturers must balance cost and efficiency in production, this often results in components that struggle when pushed beyond “normal factors.”

Understanding the Limits of OEM Cooling Systems

Jaguar designs its vehicles to operate within specific parameters—standard temperature ranges, factory settings, and an anticipated eight-year lifecycle. However, once modifications are introduced or the vehicle is subjected to high-performance conditions, critical components, particularly the cooling system, quickly reach their limits.

With X100 radiators now between 20 and 30 years old, their effectiveness has significantly deteriorated due to multiple factors:

• Blocked or damaged cooling fins reducing airflow efficiency.
• Ageing plastic end tanks that become brittle and fail under pressure.
• Small or clogged coolant tubes restricting fluid movement.
• Aluminium core degradation causing structural weaknesses under stress.

While various replacement options exist, most still rely on outdated designs and manufacturing techniques. Given modern advancements in cooling technology, accepting these limitations is unnecessary.

The Problem with Generic Aftermarket Radiators

The market is saturated with low-cost, mass-produced radiators—many of which feature oversized end tanks, excessive core thickness, and inefficient dual-finned designs. While some of these attributes may marginally increase performance over a stock unit, they often reduce overall cooling efficiency.

The Swallows Racing Solution: Cutting-Edge Cooling Technology

In our relentless pursuit of excellence, Swallows Racing has partnered with PWR Cooling, the world leader in advanced cooling solutions. Trusted by Formula 1, Le Mans, touring car teams, and elite manufacturers like Bugatti, McLaren, Koenigsegg, and Pagani, PWR delivers industry-leading cooling performance.

The Science Behind PWR’s Superior Radiators

A high-performance radiator must cool efficiently, and PWR achieves this through several key innovations:

1. Revolutionary Coolant Tube Design

PWR radiators utilise rolled-dimple tube technology, which enhances coolant interaction with the tube walls. Unlike traditional flat-walled tubes, this design creates turbulence, ensuring a greater volume of coolant contacts the tube surface, maximising heat transfer.

2. Optimised Tube Sizing for Controlled Coolant Flow

Instead of uniform tube sizing, PWR employs a gradual reduction in tube diameter, slowing coolant flow as it moves through the core. This allows heat dissipation to occur more effectively before the coolant cycles back into the engine.

3. Precisely Engineered Core Thickness

Contrary to the common misconception that “thicker is better,” excessive core thickness can significantly impede airflow. PWR radiators are meticulously tested in wind tunnels to ensure optimal thickness, allowing hot air to pass efficiently through the fins without stagnation.

4. Advanced Fin Pitch and Louver Design

PWR’s single-structure, internally-louvered fins enhance airflow, providing superior cooling capacity while maintaining structural integrity.

5. Refined End Chamber Design

By reducing the size of the end tanks and optimising internal flow paths, PWR radiators maintain smooth, tapered coolant flow, increasing system pressure and efficiency.

Proven Performance: The Ultimate Jaguar Cooling Upgrade

PWR radiators have been rigorously tested both in wind tunnels and competitive racing environments, delivering outstanding results. In the last three championship rounds, Jack’s X100 race car showcased the undeniable performance advantage of our cooling technology.

Key Benefits of PWR Radiators:

• 40%+ more efficient than OEM Jaguar radiators thanks to cutting-edge tube and fin technology.
• Multiple core configurations available, including 26mm, 32mm, 42mm, 55mm, and 68mm tubes to suit various performance needs.
• Revolutionary fin pitch ranging from 10-22 FPI (fins per inch) with optimised louver angles.
• World-class TIG welding and fabrication for unmatched durability.
• State-of-the-art controlled atmosphere brazing process ensuring superior heat dissipation.
• Race-proven performance on the Swallows Racing X100 and verified through comprehensive wind tunnel testing.

Now Available for Pre-Order

The X100 PWR Radiator is now exclusively available from Swallows Racing for pre-order. Development is underway for charge coolers, oil coolers, X150, and F-Type models, with a planned release in 2026.

Upgrade your Jaguar’s cooling system with industry-leading technology and experience unmatched performance. Contact Swallows Racing today to reserve your unit.