• Unitronic releases B9 Audi S4/S5 EA839 3.0 V6 Carbon Fiber Intake System

      Unitronic released a new carbon fiber air intake system for the Audi EA839 3.0 twin scroll turbo V6 in the B9 Audi S4 and S5 models. The intake is obviously designed to get more air into the motor which it does even in stock software form.

      Keep in mind that as you tune the motor and move more air the more of a restriction the factory intake system becomes. Unitronic is able to show gains even on the factory tune with just a change to their intake system:

      That is 10 horsepower and 4 lb-ft of torque without doing anything else. Notice the breathing improvement past 5500 rpm as well.

      It does not hurt the intake also makes the engine bay look good:

      As far as the areas of design improvement:

      As the initial designs develop; evolution begins with rapid prototyping, utilizing its in-house Stratasys 3D printer. Within hours, Unitronic Engineers are able to have a complete working printed prototype, allowing for test fitments to be performed on the vehicle, functional testing to be completed, and flow data collected to further validate the designs.

      Unitronic engineers studied what the Engineers at Audi® had intended for the stock unit. The first aspect considered, was how to make it more efficient, yet effective. The result is a design that exhibits smooth volumetric transitions. Every facet of this design is effectively executed for form and function.

      Unitronic Engineers further validated designs to ensure that the Unitronic Carbon Fiber Intake System developed more power using its in-house MAHA Chassis Dynamometer. Unitronic was able to measure considerable horsepower and torque gains in tuned vehicle applications.

      Our pursuit for perfection is applied even in the most minute areas of product design and in this case, Unitronic identified that allowing for ample tolerance for engine movement on an item that is both affixed to a dynamic engine and a rigid chassis. Rather than using traditional silicone for its hose connections, this Unitronic Carbon Fiber Intake System uses a high-quality, extremely durable EPDM material for its couplers.

      This offers a superior amount of flexibility over traditional silicone, while still offering, with its clever design, the rigidity and strength to be highly reliable on the 3.0 TFSI engines. Taking the design and engineering one step further, Unitronic engineers created a design that allows for smooth, laminar airflow on the inside walls, while maintaining flexibility through the means of a non-collapsing structural rib profile. Unitronic EPDM couplers are designed to perfectly align with the bead rolls on the carbon fiber tubes, to ensure a perfect and seamless connection; hose clamp guides ensure perfect alignment.

      A nice efficiency gain, good looks, and direct bolt in fitment. Another great Audi product product from Unitronic!

      • 2/2 Twill prepreg carbon fiber weave
      • Autoclave construction
      • EPDM couplers
      • High-quality stainless steel hose clamps
      • Direct bolt-on fitment with OEM Mounting Locations & EPDM mounting grommets
      • Smooth airflow transitions
      • Proven power, torque, and airflow gains

      2017-2019 Audi S4 3.0 TFSI
      2017-2019 Audi S5 3.0 TFSI Coupe and Sportback


      This article was originally published in forum thread: Unitronic releases B9 Audi S4/S5 EA839 3.0 V6 Carbon Fiber Intake System started by Sticky View original post