Eventuri carbon intake system for Mercedes G63 AMG W463 W464

This intake has been independently dyno tested by Mercedes specialists MSL Perfomance. Tests were done back to back against the stock airbox and several runs were taken with each configuration. We took the best results from the stock airbox and the best from the Eventuri system. The dyno results show a consistent gain throughout the RPM range which can be attributed to the turbos reaching peak boost earlier and with a lower wastegate duty cycle due to the higher efficiency of the intake system. This gain is despite the dyno cell temperatures being higher for the Eventuri tests. The performance gain translates on the road to increased part throttle and full throttle response with the car pulling much more eagerly to the redline.

We conducted flow rate tests using a Superflow SF-1020 to measure the maximum flow rate possible at a pressure drop of 28” H2O. Tests were done on the same day in controlled conditions using the same test jig for each system. We tested our full intake system against the stock airbox system. The results show just how restrictive the stock airbox is, which we have managed to improve by up to 25% in maximum possible flow rate. Importantly this has been achieved with a sealed intake system taking the air feed from the same location as the OEM system. An open system would flow more but at the expense of intake air temperatures, which would be detrimental to performance.



 

The Eventuri G63 AMG intake system consists of a number of components engineered to perform a specific purpose and fabricated to the highest of standards. We use 100% pre-preg carbon fiber with no fibreglass which means we can achieve a smooth internal surface to maintain smoother airflow. Here are the details for each component and the design ethos behind them:

Each intake system consists of:

• Carbon Fiber Airbox Bases
• Carbon Fiber Airbox Lids
• Bespoke High Flow Dry Filters
• Carbon Fiber Engine Cover
• CNC Machined Sensor Mounts
• Custom EPDM Flexible Duct Connectors
• Laser Cut Stainless Steel Brackets

AIRBOX ASSEMBLIES



The airbox assemblies feature a two-part design, with upper and lower sections separated by filter panels. Each section is carefully crafted to maximize internal volume while ensuring an unobstructed path for airflow to reach the turbos. The primary challenge in this design was enhancing the airboxes’ internal volume to improve flow rate capacity beyond the stock airboxes. Given the compact nature of the G63 engine bay, this was achieved by optimizing the internal height of the airboxes. The most significant improvement came from enlarging the upper airbox lids, resulting in a substantial volume increase and a smoother, more efficient airflow path.

AIRBOX COMPARISONS



Comparing the Eventuri intake directly with the OEM airboxes clearly shows the difference in volume and the improvement in the flow path. The cold air feed of the OEM system connects to the airbox with a long flexible duct which is restricted in size. This also leaves little room for the airbox base to shape the incoming flow onto the filter. We have incorporated most of the cold air feed length into the base of our airbox allowing for a much larger internal volume and and more organic path to allow the filter maximum exposure.



The lid of the OEM airbox is even further restricted due to the close proximity of the filter panel to the turbo inlet. Airflow has to negotiate a very tight transition from the rectangular filter to the circular turbo inlet positioned to one side of the airbox. This results in stagnant flow across significant areas of the filter resulting in further resistance. We have lowered the position of our filter allowing more space to transition to the turbo inlet. This allows the filter to be more effectively used with minimised turbulence and a much reduced drag on the turbos.

ENGINE COVER


By utilising the space under the hood we have maximised the volume of our intake system but this also required the engine cover to be redesigned as the OEM cover sits close to the OEM intakes. The new cover is made from prepreg carbon fiber and features high temperature insulation to protect it from the heat of the turbos.

CUSTOM PANEL FILTERS