EVENTURI Filter housing for BMW, BMW M, BMW Plug-in Hybrid and BMW Mild Hybrid
ON THE ROAD
With a smooth inlet track to the MAF tube/Engine inlet and by ensuring Eventuri has an effective cold air supply to the filters, the resultant performance increases translate to an enhanced driving experience:
- Throttle response is sharper as air speeds in the inlet track are maintained by the Venturi effect
- Low/mid-range torque is increased which improves general drivability. The car feels more aggressive and eager to drive, like an engine tuning performance.
- Top end power is increased as the engine is allowed to draw in cold air with less restriction.
Couple the dAHLer engine performance tuning increase with a more audible and sonorous induction sound and the overall driving experience is much more involving and more fun.
PATENTED EVENTURI FILTER HOUSING FOR BMW, BMW M, BMW PLUG-IN HYBRID, BMW MILD HYBRID CARS
Even at first glance the Eventuri intake looks very different to many other aftermarket intakes. Unlike the majority of intakes, which use the same cone filter/tube/heat shield configuration, the Eventuri design is fundamentally different and has been Patented.
AFTERMARKET INTAKE SYSTEMS for BMW, BMW M, BMW Plug-in Hybrid and BMW Mild Hybrid
Mainly all aftermarket intakes use a cone filter to fit an inlet tube with some type of heat shielding. In this frame airflow must find a path from the large diameter at the base of the filter through to the smaller diameter of the inlet tube in a relatively short distance. There is usually a velocity stack at the base of the filter to help with the transition, however the stack is usually small. This sudden transition in geometry is detrimental for flow. The result is a loss of throttle response and power gains are usually limited over the OEM BMW intake system.
The diagram below shows a typical cheap intake using a cone filter secured to an engine inlet tube. This filter uses a standard velocity stack, which has been highlighted in yellow.
THE EVENTURI INTAKE SYSTEM BMW, BMW M, BMW PLUG-IN HYBRID AND MILD HYBRID CARS
The Eventuri for BMW, BMW M, BMW Plug-in Hybrid and BMW Mild Hybrid car is a new type of intake design, which has been granted a patent. Eventuri uses a cone filter – but here it is inverted and decoupled from the inlet tube. By removing the direct connection between the filter and the inlet tube, the filter is no longer dictating the shape of the airflow. This is now being done by the carbon housing, which is designed to smoothly guide the air into the inlet tube without a sudden change in geometry.
This means that Eventuri keeps laminar conditions throughout the intake, which is a lot more efficient. Furthermore, the funnel-shaped housing invokes the Venturi effect where the smooth reduction in cross-sectional area along the length of the housing causes the airflow to increase in velocity. Essentially the entire housing acts as a large velocity stack. On the road this translates to more power with a smoother delivery as well as sharper throttle response since the airflow is not inhibited by abrupt geometry changes.
The diagram above shows an Eventuri intake system using a reverse mounted filter inside an Eventuri housing. The large velocity stack area is highlighted in yellow.
Read more EVENTURI BESPOKE FILTERS BMW, BMW M, BMW HYBRID CARS
EVENTURI BESPOKE FILTERS BMW, BMW M, BMW PLUG-IN HYBRID, BMW MILD HYBRID CARS
To complement Eventuri’s filter housings, Eventuri designed their filters specifically for this reverse mounted configuration in order to provide the optimum airflow through the system.
Eventuri announced their bespoke filter cones for BMW Cars in 2018. This filter is a custom design which was developed to provide an optimum airflow through the Eventuri housings for BMW cars where the filter is reverse mounted for tuning BMW and BMW M cars. It is a direct replacement for all of the Eventuri intakes for BMW, BMW M, BMW Plug-in Hybrid and BMW Mild Hybrid cars which use Eventuri carbon housings for BMW, BMW M, BMW Plug-in Hybrid and BMW Mild Hybrid cars and will be fitted to all new intakes from 2018.
EVENTURI BESPOKE FILTERS BMW AND BMW M CARS
To complement Eventuri’s filter housings, Eventuri designed their filters specifically for this reverse mounted configuration in order to provide the optimum airflow through the system.
Eventuri announced their bespoke filter cones for BMW Cars in 2018. This filter is a custom design which was developed to provide an optimum airflow through the Eventuri housings for BMW cars where the filter is reverse mounted for tuning BMW and BMW M cars. It is a direct replacement for all of the Eventuri intakes for BMW and BMW M cars which use Eventuri carbon housings for BMW and BMW M cars and will be fitted to all new intakes from 2018.
Read more AIRFLOW FOR BMW AND BMW M CARS
AIRFLOW FOR BMW AND BMW M CARS
The resulting flow through the filter and also smooth at the exit of the intake, to the connecting tube is smooth with a high velocity profile. In real terms, this means that the BMW engine is able to draw air very efficiently, and the driver will be able to notice a sharper throttle response, as well as the power and torque improvements. It’s a perfect engine performance tuning for BMW sportscars. Where the engine has a turbo, it will be able to generate peak boost earlier as it will be working with much less resistance. Tests have shown that the Eventuri systems reduce the waste gate duty circle by a significant percentage over the OEM BMW system.
The following diagrams are simulations showing velocity streamlines through the Eventuri system for BMW cars – with the new Eventuri filter and the original BMW filter.
AIRFLOW FOR BWM, BMW M, BMW PLUG-IN HYBRID, BMW MILD HYBRID CARS
The resulting flow through the filter and also smooth at the exit of the intake, to the connecting tube is smooth with a high velocity profile. In real terms, this means that the BMW engine is able to draw air very efficiently, and the driver will be able to notice a sharper throttle response, as well as the power and torque improvements. It’s a perfect engine performance tuning for BMW sportscars. Where the engine has a turbo, it will be able to generate peak boost earlier as it will be working with much less resistance. Tests have shown that the Eventuri systems reduce the waste gate duty circle by a significant percentage over the OEM BMW system.
The following diagrams are simulations showing velocity streamlines through the Eventuri system for BMW cars – with the new Eventuri filter and the original BMW filter.
RESULTING IMPROVEMENTS FOR BWM, BMW M, BMW PLUG-IN HYBRID, BMW MILD HYBRID CARS
Dyno testing the Eventuri intakes back-to-back with the original filter vs the upgraded filter, Eventuri has found an additional power and torque increase for tuning BMW, BMW M, BMW Plug-in Hybrid and BMW Mild Hybrid cars, like an engine performance tuning module. This validates our theoretical modelling and proves that the upgraded filters really have a significant impact on the airflow through the intake. The power gains over and above the original filters vary between vehicles, but here are some of the results Eventuri has measured so far. Info: these graphs show the Eventuri intake with original filter vs upgraded filters.
Not against the stock airboxes – which will now be an even bigger power gain!
Read more THE COMPLETE SOLOTUION FOR BMW AND BMW M CARS
THE COMPLETE SOLOTUION FOR BMW AND BMW M CARS
The final element to the Eventuri design – which is as important, is Eventuri’s accent on creating a complete solution for BMW and BMW M cars. Eventuri dedicate a lot of design effort on ensuring the filter housings for BMW and BMW M cars are provided with climate air in the most efficient possible way. Allowing the filters to suck in heated air from the engine compartment defeats the objective and in many cases is the cause of an actual loss in power over the stock system once the engine compartment is heat soaked. Simply using heat shields is not effective – there must also be a method of channeling cold air into the intake. This is where Eventuri has seen some companies use “scoops” but on closer inspection are usually very flat and almost perpendicular to the oncoming air. Not the ideal solution for trying to redirect air at high speeds! Eventuri scoop designs have, where possible a curved face for as much of the exposed area as possible in order to smoothly redirect incoming air to the filters for tuning BMW and BMW M cars. In doing so Eventuri ensures that engine bay heat is displaced and so intake air temperatures are kept as low as possible.
From scoop to duct to housing to inlet tubing – by utilizing organic shapes, Eventuri invests a great deal of time and effort in providing a smooth path for the airflow to follow. Therefore, ensuring maximum efficiency of the Eventuri system for tuning BMW and BMW M cars.
THE COMPLETE SOLOTUION FOR BWM, BMW M, BMW PLUG-IN HYBRID, BMW MILD HYBRID CARS
The final element to the Eventuri design – which is as important, is Eventuri’s accent on creating a complete solution for BMW, BMW M, BMW Plug-in Hybrid and BMW Mild Hybrid cars. Eventuri dedicate a lot of design effort on ensuring the filter housings for BMW and BMW M cars are provided with climate air in the most efficient possible way. Allowing the filters to suck in heated air from the engine compartment defeats the objective and in many cases is the cause of an actual loss in power over the stock system once the engine compartment is heat soaked. Simply using heat shields is not effective – there must also be a method of channeling cold air into the intake. This is where Eventuri has seen some companies use “scoops” but on closer inspection are usually very flat and almost perpendicular to the oncoming air. Not the ideal solution for trying to redirect air at high speeds! Eventuri scoop designs have, where possible a curved face for as much of the exposed area as possible in order to smoothly redirect incoming air to the filters for tuning BMW, BMW M, BMW Plug-in Hybrid and BMW Mild Hybrid cars. In doing so Eventuri ensures that engine bay heat is displaced and so intake air temperatures are kept as low as possible.
From scoop to duct to housing to inlet tubing – by utilizing organic shapes, Eventuri invests a great deal of time and effort in providing a smooth path for the airflow to follow. Therefore, ensuring maximum efficiency of the Eventuri system for tuning BMW, BMW M, BMW Plug-in Hybrid and BMW Mild Hybrid cars.
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