HF-Series intercooler for Ford Focus III ST Mk.3 250 PS (DYB)

This upgraded intercooler for the Ford Focus III ST is a highlight of the HF-Series range. The high-quality HFT core provides excellent cooling performance, even under demanding conditions, while remaining extremely robust. It offers high resistance to heat and does not heat up as readily as comparable cores from other manufacturers.

The entire system is also designed for optimum airflow. This means that pressure loss is kept to a minimum, while the complete charge-air route has been developed using CAD flow analyses. The intercooler end tanks are made from high-strength cast aluminium.

Product benefits:

• significantly cooler charge air, improving combustion in the engine
• quicker engine response
• improved airflow

This product is suitable for both standard power and motorsport applications, as considerably higher power outputs are also possible. Each intercooler was built for the specific vehicle, calculated using flow simulations and tested on a measuring system.

Technical details

Core type: HFT
Length: 770 mm (core)
Height: 320 mm (core)
Depth: 50 mm (core)
Core volume without end tanks: 12.32 cm³

A parts certificate for straightforward registration under §19.3 is included.

Dyno graph with standard software

Several unknown factors must be considered when expressing the exact power increase provided by an intercooler in figures, including factory power variation, further hardware changes and the software used during measurement. Results vary from vehicle to vehicle. As a rule of thumb for tuned engines, an increase of up to 5–10 % may be expected.

What is at least as important is that, whether the engine has already been optimised or remains standard in software terms, the intercooler helps prevent power loss at high ambient temperatures and avoids reaching the thermal protection threshold stored in many control units. This allows the engine to deliver its full power consistently.

Recommendation

We recommend using HF-Series intercoolers together with hardware and software optimisation. Reducing back pressure, thereby relieving the turbocharger, and cooling the charge air, thereby increasing the oxygen content in the combustion chamber and reducing thermal load, enables the potential of every turbocharged engine to be used efficiently.

When tuning a vehicle’s hardware or software, charge-pressure loss must not be overlooked. Increasing power through chip tuning also increases charge pressure in 99% of cases. With the standard intercooler, charge-pressure loss rises exponentially. The turbocharger must therefore work harder, increasing its thermal load and reducing its service life; higher rotational speeds also accelerate wear.

HF-Series intercoolers provide the ideal balance between cooling performance and charge-pressure loss.

Road use: A parts certificate for registering the modification under §19.3 is included. Before installation and use on public roads, the applicable registration procedures for the modification must be followed.

Suitable for: Ford Focus III (DYB).

Manufacturer’s vehicle data

• HF-Series Ladeluftkühler Ford Focus ST Mk.3 250PS

Original product name by HG Motorsport (»z.B.« = e.g.). Please check model, year and engine of your vehicle before ordering; if in doubt, contact us and we will check for you.

Approval

This part comes with a German Teilegutachten (parts certificate); the document is included. In Germany the part must be entered in the vehicle registration after fitting.