Unitronic's bar and plate intercooler core is constructed of T5052 Aluminum featuring a unique staggered and louvered fin configuration to maximize efficiency, significantly reducing charge air temperatures allowing for cooler, more dense air to be ingested by the engine; ultimately resulting in an increase in engine performance. When intake air temperatures reach a specific threshold, the engine control unit begins to compensate to account for the air temperature, resulting in a decrease in performance. Unitronic's core has 64% more volume than stock measuring 23.5" x 2" x 16.5", allowing for a greater volume of air to exchange heat, which, combined with a proper fin configuration, allows for maximum efficiency and reduction in heat-soak thresholds without producing a significant pressure drop.
Utilizing its 2015 VW GTI for research and development provided Unitronic with a platform in-house to run through the testing. Testing was done on its in-house Dynapack hub dyno, using our standard cooling fans aligned with the front end of the vehicle. The vehicle's front bumper/fascia was fully affixed for all tests and the appropriate data acquisition tools were used to collect pre- and post-intercooler air temperatures. All data was collected on the same day, starting with the OEM intercooler testing first. Temperature probes were tapped into the inlets and outlets of both the OEM and Unitronic Intercooler core end tanks. Ambient air temperature varied slightly throughout the day between 20-22 degrees Celsius (68-72 degrees Fahrenheit). Testing consisted of 9 consecutive dyno pulls with a 20 second pull and a 15 second cool down period in between runs, with both the OEM and Unitronic Intercoolers to collect inlet and outlet air temperatures to provide data on cooling abilities, efficiency, and resistance to heat soak compared to the OEM unit.