Eventuri Black Carbon Intake for VW Golf MK8 R - Audi S3 8Y 2.0 TFSI

Performance Gain (Stock Golf R): 10-13hp, 12-15Nm
Performance Gain (Tuned Golf R): 15-20hp, 25-30Nm
Flow Bench Data: Stock R Intake 455 CFM : Eventuri R Intake 783 CFM
Flow Bench Data: Stock GTi Intake 435 CFM : Eventuri GTi Intake 618 CFM

Fitment: MK8 Golf R, Gti (2 Separate Part Numbers), Other 2.0 TFSi Gen 4 platforms

The MK8 Golf GTi/R intake is a complete redesign of the stock intake all the way to the turbo inlet. Taking cues from our RS3 intake, we have maximised usage of the available space to create an intake which can cater for all power levels from stock to high power builds with hybrid or full frame turbos. This intake system has been developed to offer the highest possible flow rate whilst maintaining the lowest intake temperatures possible. Each component has been designed to provide the turbo with a smooth and free flowing path. The restrictive stock 73mm diameter inlet tube is replaced with a larger 94mm diameter tube intake tube. The filter itself has an outer diameter of 192mm or 7.5″ with a filtration surface area of over 110,000mm^2. The patented Venturi housing has been designed to provide the maximum internal volume possible for the Golf engine bay space available and provides laminar flow to the turbo tube. Finally the duct seals the filter opening to the front slam panel but is not restricted by just the stock entry feed. We have lifted the front of the duct to now provide an extra opening behind the hood which is equivalent to an extra 7″ diameter hole for the intake to draw from. The resulting system can significantly outflow the stock airbox while keeping intake temperatures at a minimum with the sealed design.

Each intake system consists of: 
 

• Prepreg Carbon Fibre Venturi Housing
• High Flow Double Cone Air Filter
• Aluminium Cowl for smooth airflow entry
• Prepeg Carbon Fibre Intake Duct (also available in plastic)
• Laser Cut Cold Air Scoop with Surround
• Laser Cut Stainless Steel Brackets
• Laser Cut Slam Panel Plate

CaCarbon Intake Housing and Duct 

 

The filter housing comprises of a high flow filter, aluminium cowl, laser cut bracket and the carbon pod itself. The carbon pod shrouds the reverse mounted filter and smoothly shapes the airflow down to the intake tube. This smooth reduction in cross sectional area invokes the Venturi effect where the airflow accelerates whilst maintaining laminar conditions. It can be thought of as a large velocity stack - below is a diagram to show the comparison between our patent pending design and a regular intake system. Further details can be read in the Technology page. The duct channels cold air from the slam panel opening to the filter. By designing the duct to smoothly transition from the rectangular opening at the front to the circular opening for the filter, it allows the airflow to remain as direct and smooth as possible. 

 

Single Duct VS Double Duct 

During the development of our system we designed and tested both the single duct and also an extended double duct version: 

 

Testing showed that the double duct did not produce more power, in fact we could not achieve the same results as we did with our single duct design. This is because the single duct allows for the smoothest and most direct airflow path to the filter and the cross sectional area of the opening is not restrictive for this engine. With the scoop directly in front of the opening there is no chance for warm air to mix with the airflow. Furthermore on the double duct, the airflow has to travel at almost a 90 degree angle from the far side of the grill to then enter the filter housing. A dyno graph comparing the single and double duct can be seen in the Performance tab. 

Cold Air Scoop  

A key feature of our system is the addition of a scoop into the grill which opens up a direct path for cold air to enter the duct. When the bonnet is closed, it prevents a direct air feed to the duct and the only path for cold air to enter is the small gap between the closed bonnet and the top of the grill - or the small slits on the other side of the grill. This means that the intake will draw some air in from the hot engine bay area. With our scoop system - when the car is in motion there is minimal chance for hot air to enter the intake and so the intake temperatures are lower than the OEM airbox. Here is a thermal imaging video of the engine bay showing how cool the intake system is after a good drive.