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Watch out: Mercedes A35 AMG, CLA35 AMG, A250, CLA250
Performance increase: 15-20hp, 15-18ft-lb
The Mercedes A35 AMG Eventuri intake system is designed to provide a less restrictive flow path for the turbo while keeping intake temperatures low. Reducing heat suction and increasing internal volume are the primary considerations when designing an intake system for turbocharged engines. On the A35, the intake system is located in close proximity to the exhaust manifold, which quickly heats up the engine compartment. High temperatures have a detrimental effect on engine performance because the turbo has to build up boost pressure with heated, less dense air. Therefore, the only way to keep IAT to a minimum is with a fully sealed intake tract. To reduce the restrictions of a closed intake tract, we increased the volume of the airbox by relocating the control unit and providing an opening in the airbox on the cold side, away from the direct heat of the manifold. The carbon inlet pipe has a larger internal volume with an initial internal diameter of 111mm (4.4?) that gently tapers to match the turbo inlet pipe diameter. Finally, we use a custom-made high-flow dry filter that is ISO tested and has a larger filter area than the stock filter.
Dyno-Tests
The dyno testing was carried out by MSL Performance, a Mercedes specialist based in the UK. A completely stock A35 AMG was tested with the stock airbox and then with the Eventuri intake system, with the external conditions being the same. As can be seen below, the intake tract provides an increase in power throughout the rev range. The highlighted point shows a significant increase in power as the intake tract allows for a higher flow rate in the higher RPM range where the stock airbox becomes a limitation. The resulting performance gains are noticeable on the road, with better throttle response and improved acceleration times. With a tuned A35, we'd expect even better gains as the turbo's demand increases.
The Eventuri A35 intake system consists of a series of components designed for a specific purpose and manufactured to the highest standards. We use 100% pre-impregnated carbon fiber without fiberglass, meaning we can achieve a smooth internal surface to maintain more consistent airflow. Here are the details for each component and the design ethos behind them:
Each intake system consists of:
Carbon-Airbox
Custom made high flow dry cone filter
Inlet pipe made of carbon
CNC-milled intake manifold flange
Laser cut stainless steel brackets and ECU cover
Silicone coupling with OEM clamps
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