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EVENTURI Carbon Air Intake System For BMW M3 E90 E92 E93.
Performance Gain Dyno: 8-10hp, 10-12ft-lb
Performance Gain Road Dyno (Insoric): 16hp, 14Nm
IAT Difference with Ambient: Stock 7.5C : Eventuri 4.5C
V-Box Acceleration : 100-200kph Reduced By 0.3 Seconds
*Some images shown with the optional Carbon Airbox Lid
The BMW M3 E9X Eventuri intake system is the result of extensive research and optimisation which improves possibly one of the best designed stock intake systems we have seen. The M3 E9X stock airbox system is a brilliantly designed intake with an excellent flow path and feed system for ambient air. However on closer inspection, there are restrictions in the inlet tube connecting the airbox to the inlet manifold. By redesigning the tube yet maintaining the airbox, we have been able to allow the V8 engine to breathe with greater efficiency and therefore gain power. In addition to the new tube design, we also identified a further restriction in the air feed system. To overcome this we designed a scoop to allow an increase in airflow through the airbox. This reduces inlet temperature values further and adds to the performance gain of the system.
VBox Acceleration Tests
Finally we took the car for some road testing using a Vbox unit to record the acceleration from 60-130mph (also 100-200Km/h). For the Vbox testing our test car had a primary decat and stage 2 tune for all test runs. Testing was carried out on the same stretch of road - again on the same day to keep variables minimum. Results show that with just the intake added, the acceleration times from 60-130mph and also 100-200Km/h reduced by approximately 0.3 seconds which is a significant change at such speeds.
Acceleration results summary:
60-130mph with Stock intake = 11.157 seconds
60-130mph with Eventuri intake = 10.886 seconds
100-200Km/h with Stock intake = 9.56 seconds
100-200Km/h with Eventuri intake = 9.236 seconds
The Eventuri M3 E9X intake system consists of a number of components engineered to perform a specific purpose and fabricated to the highest of standards. Here are the details for each component and the design ethos behind them:
Each intake system consists of:
Carbon Intake Tube
The intake tube was designed to improve the airflow path compared to the stock tube - from the filter to the manifold. It is a 1-piece design which has no internal interfaces and therefore provides a much smoother path for the airflow to negotiate. Furthermore the geometrical transition is from a circular opening for the filter to the oval exit for the manifold. This is a much more efficient change in shape when compared with the stock tube which has to transition from a rectangular opening for the filter to the oval exit for the manifold.
Flexibility and Movement
An important challenge to overcome was the requirement of movement with the engine. Instead of using silicon couplers with flexible sections (which would introduce similar interfaces as the stock tube), we designed the tube itself to be able to move with the engine. The tube has a compressible neoprene band around the section which interfaces with the stock airbox. This section seals the tube to the airbox yet allows movement in and out of the airbox as the engine moves. By allowing the tube itself to move - we have been able to create a flow path which is as smooth as possible.
Carbon Air Scoop
The M3 E9X airbox system is saturated with cold air from 2 feeds : a lower feed from underneath the headlamp and an upper feed from behind the kidney grills. The primary feed is the lower one from underneath the headlamp as it connects directly to the airbox with minimal change of direction and a large opening to the airbox. This is also a high pressure area of the car and airflow moves through the airbox from underneath to the exit at the top connecting to the exit vent in the bonnet. The other feed from behind the kidney grills which, although is a welcome addition, provides a much lower volume of air to the airbox than the lower feed. This is because airflow has to change direction through 90 degrees twice and also because the duct narrows down significantly before the entry to the airbox.
Looking at the lower duct more closely, it becomes clear that the duct has a large ridge which comes back on itself just before the opening to the airbox. This acts as a barrier which inhibits direct entry of airflow to the box by reducing the entry speed of the airflow.
By designing a scoop to sit on top of the stock duct and curve up sooner to eliminate this ridge - airflow is now allowed to transition from the duct to the airbox without restriction.
The airflow path is much smoother and as a result, the velocity of the air entering the airbox significantly increases. This allows the intake temperatures to be lower than without the scoop : we have data logged IATs road where we managed to reduce intake air temperature by 2 degrees using the scoop. To illustrate the effectiveness of the scoop, we devised a simple experiment with a leaf blower to generate flow and an air speed meter to measure the speed of the air entering the airbox. We secured the blower in one position so that it pushed air directly into the lower duct and placed the meter inside the airbox to measure the speed coming in.
Debris Shield
The final component is a debris shield attached to the filter - this deflects debris and water from impacting the filter directly. With the increase of airflow entering the airbox with the scoop - this is an important addition. There is no negative impact on performance since the airflow is not impeded through the airbox - temperatures are still lower than stock.
Part number: EVE-E9X-CF-INT
EVENTURI Carbon Air Intake System For BMW M3 E90 E92 E93.
Performance Gain Dyno: 8-10hp, 10-12ft-lb
Performance Gain Road Dyno (Insoric): 16hp, 14Nm
IAT Difference with Ambient: Stock 7.5C : Eventuri 4.5C
V-Box Acceleration : 100-200kph Reduced By 0.3 Seconds
*Some images shown with the optional Carbon Airbox Lid
The BMW M3 E9X Eventuri intake system is the result of extensive research and optimisation which improves possibly one of the best designed stock intake systems we have seen. The M3 E9X stock airbox system is a brilliantly designed intake with an excellent flow path and feed system for ambient air. However on closer inspection, there are restrictions in the inlet tube connecting the airbox to the inlet manifold. By redesigning the tube yet maintaining the airbox, we have been able to allow the V8 engine to breathe with greater efficiency and therefore gain power. In addition to the new tube design, we also identified a further restriction in the air feed system. To overcome this we designed a scoop to allow an increase in airflow through the airbox. This reduces inlet temperature values further and adds to the performance gain of the system.
VBox Acceleration Tests
Finally we took the car for some road testing using a Vbox unit to record the acceleration from 60-130mph (also 100-200Km/h). For the Vbox testing our test car had a primary decat and stage 2 tune for all test runs. Testing was carried out on the same stretch of road - again on the same day to keep variables minimum. Results show that with just the intake added, the acceleration times from 60-130mph and also 100-200Km/h reduced by approximately 0.3 seconds which is a significant change at such speeds.
Acceleration results summary:
60-130mph with Stock intake = 11.157 seconds
60-130mph with Eventuri intake = 10.886 seconds
100-200Km/h with Stock intake = 9.56 seconds
100-200Km/h with Eventuri intake = 9.236 seconds
The Eventuri M3 E9X intake system consists of a number of components engineered to perform a specific purpose and fabricated to the highest of standards. Here are the details for each component and the design ethos behind them:
Each intake system consists of:
Carbon Intake Tube
The intake tube was designed to improve the airflow path compared to the stock tube - from the filter to the manifold. It is a 1-piece design which has no internal interfaces and therefore provides a much smoother path for the airflow to negotiate. Furthermore the geometrical transition is from a circular opening for the filter to the oval exit for the manifold. This is a much more efficient change in shape when compared with the stock tube which has to transition from a rectangular opening for the filter to the oval exit for the manifold.
Flexibility and Movement
An important challenge to overcome was the requirement of movement with the engine. Instead of using silicon couplers with flexible sections (which would introduce similar interfaces as the stock tube), we designed the tube itself to be able to move with the engine. The tube has a compressible neoprene band around the section which interfaces with the stock airbox. This section seals the tube to the airbox yet allows movement in and out of the airbox as the engine moves. By allowing the tube itself to move - we have been able to create a flow path which is as smooth as possible.
Carbon Air Scoop
The M3 E9X airbox system is saturated with cold air from 2 feeds : a lower feed from underneath the headlamp and an upper feed from behind the kidney grills. The primary feed is the lower one from underneath the headlamp as it connects directly to the airbox with minimal change of direction and a large opening to the airbox. This is also a high pressure area of the car and airflow moves through the airbox from underneath to the exit at the top connecting to the exit vent in the bonnet. The other feed from behind the kidney grills which, although is a welcome addition, provides a much lower volume of air to the airbox than the lower feed. This is because airflow has to change direction through 90 degrees twice and also because the duct narrows down significantly before the entry to the airbox.
Looking at the lower duct more closely, it becomes clear that the duct has a large ridge which comes back on itself just before the opening to the airbox. This acts as a barrier which inhibits direct entry of airflow to the box by reducing the entry speed of the airflow.
By designing a scoop to sit on top of the stock duct and curve up sooner to eliminate this ridge - airflow is now allowed to transition from the duct to the airbox without restriction.
The airflow path is much smoother and as a result, the velocity of the air entering the airbox significantly increases. This allows the intake temperatures to be lower than without the scoop : we have data logged IATs road where we managed to reduce intake air temperature by 2 degrees using the scoop. To illustrate the effectiveness of the scoop, we devised a simple experiment with a leaf blower to generate flow and an air speed meter to measure the speed of the air entering the airbox. We secured the blower in one position so that it pushed air directly into the lower duct and placed the meter inside the airbox to measure the speed coming in.
Debris Shield
The final component is a debris shield attached to the filter - this deflects debris and water from impacting the filter directly. With the increase of airflow entering the airbox with the scoop - this is an important addition. There is no negative impact on performance since the airflow is not impeded through the airbox - temperatures are still lower than stock.
Part number: EVE-E9X-CF-INT
EVENTURI Carbon Air Intake System For BMW M3 E90 E92 E93
| Tuning Equipment | |
| Brand | EVENTURI |
| Car |
BMW M3 (E90/E92/E93) (2007-2013) 4,0 (S65B40A) |
| Type of equipment | Air intake systems |
Eventuri was founded by a team of engineers and enthusiasts with a background in Aeronautics and tuning – all sharing a passion for cars and performance. After owning various intakes over many years for our own cars and being disappointed with the gains which seldom lived up to their claims – we decided to take things into our own hands and rewrite the book. Eventuri set a new benchmark in intake design and technology, above all – to engineer systems which provide real gains and then to publish genuine figures.
Eventuri intake systems are extensively developed using cutting edge design, testing and prototyping methods. With a focus on performance, each design undergoes CFD analysis and is then validated at the prototype stage through volumetric airflow, intake temperature and extensive dynamometer testing. Eventuri strive to publish all the development information to illustrate the depths we go to in bringing an intake from concept to reality.
Only the best materials are selected for each component – even down to the choice of fasteners and fixings in order to ensure that the quality of the end product is second to none.
Eventuri intake systems for Audi, BMW, MERCEDES, Porsche
Tags: EVENTURI, BMW M3 E90 E92 E93
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