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EVENTURI Carbon Intake System AUDI RS6 RS7 C8
Performance Increase – Stock ECU : 15-25hp, 11-20ft-lbs
Performance Increase – Stage 1* : 45-50hp, 40-45ft-lbs
Stage 1 Acceleration 100-200Km/h : Reduced by 0.6s
Performance Increase – Stage 2* : 60-80hp, 60-70ft-lb
*Some images show our optional carbon engine cover.
The Audi RS6 C8 intake system is the culmination of extensive development, testing and prototyping. Our aim was to address 2 main criteria:
1) Increased flow rate.
2) Smooth Airflow.
The first objective was met by utilising all of the limited space available in the RS6 engine bay which was heavily restricted by the underside of the hood. Our solution was to completely redesign the entire airbox which maximised volume, increased flow entry openings and created a more favourable filter angle to the turbos. Furthermore we dramatically increased the size of the turbo inlets by as much as 85% when measuring the cross sectional area at the openings. The second objective was met by designing an organically shaped system with a custom rounded panel filter to ensure the airflow path contained no sharp corners and therefore allowed for the flow to remain laminar. With smooth transitions from the filter to the turbo inlets, our intake minimises the formation of turbulence and therefore the turbos are able to operate more efficiently. We partnered with BMC for a bespoke filter element to ensure that the filtration area is as large as possible whilst keeping airflow clean.
With all objectives met, our RS6 C8 intake system delivers on all fronts and allows for the turbos to generate boost more efficiently. This results in an improved throttle response and significant power gains, independently tested which increase with higher states of tune. The performance gains measured are a result of the complete system we have developed from the airbox base to the lid and the inlets.
*Gains measured can vary with different ECU tunes.
DRAG STRIP TESTING
We took a stage 1 RS6 to a local drag strip to measure the effect of the intake on quarter mile times and also on 100-200km/h times. The car ran 3 times on the stock airbox to get a repeatable result and then the intake was swapped over to the Eventuri. The car was then again run 3 times to make sure the result was consistent. Results are:
QUARTER MILE
Stock Airbox 11.2s at 126mph
Eventuri 10.75s at 129mph
.
100-200km/h
Stock Airbox 7.46s
Eventuri 6.90s
FLOW BENCH TESTING
Flow rate tests were conducted 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 the turbo inlets by themselves and then also the complete assembly with the airbox and turbo inlets together for both the stock system and the Eventuri.
Testing just the inlets alone shows a 58% increase in flow rate over stock. This is due to the way our inlets increase in diameter at the airbox side which allows for a much lower restriction. Testing the complete system with the airbox shows an increase in flow rate of 90% over stock which is a significant increase. This shows just how restrictive the stock airbox is, with the flow rate dropping by over 25% when adding the stock airbox to the stock inlets. In contrast the flow rate drops by only 11% when adding the Eventuri intake to the Eventuri inlets. With a 90% increase in flow rate, it is clear why there are significant power gains once the RS6 C8 is tuned and the turbos demand a higher flow to create more boost pressure.
Each intake system consists of:
LOWER AIRBOX
We have completely redesigned the entire airbox system including the base which the filter sits inside. We have combined the slam panel with the lower airbox and increased the volume of this area to help increase the total flow rate. Furthermore, the base has been designed to allow the filter to sit at a more favourable angle to the turbo inlets. Where the stock airbox has a 90 degrees turn from the filter to the inlets, our airbox has a less abrupt angle and this allows for a smoother flow path.
AIRBOX LID
During development we designed and tested 4 different designs for the lid and test results showed that V2 was the highest performing. This design was optimised with CFD simulations and provides a smooth flow path from the filter to the inlets. Our design has an increased volume in comparison to the stock lid and is more organically shaped with smoother curves as opposed to the stock lid which is very cuboid. Furthermore the openings to the turbo inlets have been significantly increased in size.
TURBO INLETS
The inlets have been increased in size at the airbox side by as much as 85% more than the stock inlets and smoothly taper down to the stock turbos. This increased size significantly reduces the drag in the turbos and therefore allows them to work more efficiently. We have also incorporated CNC machined bushes and rings in the inlets for structural strength. For cars with hybrid turbos, we also have separate inlets available on request to match the different inlet diameters.
BESPOKE BMC FILTER
Our airbox required a bespoke panel filter and for this we collaborated with BMC who have developed their iconic filter specifically for our system. It is a washable 4-layer cotton mesh filter which provides superior filtration while maintaining a low pressure drop.
The complete intake system comes together to provide a superior airbox which allows the turbos to reach target boost levels much sooner and therefore the engine is able to produce more power earlier in the RPM range. When combined with a tune where the boost levels are increased, our airbox provides the required de-restricted flow path for the turbos to achieve elevated boost pressures.
Part number: EVE-C8RS6-CF-INT
EVENTURI Carbon Intake System AUDI RS6 RS7 C8
Performance Increase – Stock ECU : 15-25hp, 11-20ft-lbs
Performance Increase – Stage 1* : 45-50hp, 40-45ft-lbs
Stage 1 Acceleration 100-200Km/h : Reduced by 0.6s
Performance Increase – Stage 2* : 60-80hp, 60-70ft-lb
*Some images show our optional carbon engine cover.
The Audi RS6 C8 intake system is the culmination of extensive development, testing and prototyping. Our aim was to address 2 main criteria:
1) Increased flow rate.
2) Smooth Airflow.
The first objective was met by utilising all of the limited space available in the RS6 engine bay which was heavily restricted by the underside of the hood. Our solution was to completely redesign the entire airbox which maximised volume, increased flow entry openings and created a more favourable filter angle to the turbos. Furthermore we dramatically increased the size of the turbo inlets by as much as 85% when measuring the cross sectional area at the openings. The second objective was met by designing an organically shaped system with a custom rounded panel filter to ensure the airflow path contained no sharp corners and therefore allowed for the flow to remain laminar. With smooth transitions from the filter to the turbo inlets, our intake minimises the formation of turbulence and therefore the turbos are able to operate more efficiently. We partnered with BMC for a bespoke filter element to ensure that the filtration area is as large as possible whilst keeping airflow clean.
With all objectives met, our RS6 C8 intake system delivers on all fronts and allows for the turbos to generate boost more efficiently. This results in an improved throttle response and significant power gains, independently tested which increase with higher states of tune. The performance gains measured are a result of the complete system we have developed from the airbox base to the lid and the inlets.
*Gains measured can vary with different ECU tunes.
DRAG STRIP TESTING
We took a stage 1 RS6 to a local drag strip to measure the effect of the intake on quarter mile times and also on 100-200km/h times. The car ran 3 times on the stock airbox to get a repeatable result and then the intake was swapped over to the Eventuri. The car was then again run 3 times to make sure the result was consistent. Results are:
QUARTER MILE
Stock Airbox 11.2s at 126mph
Eventuri 10.75s at 129mph
.
100-200km/h
Stock Airbox 7.46s
Eventuri 6.90s
FLOW BENCH TESTING
Flow rate tests were conducted 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 the turbo inlets by themselves and then also the complete assembly with the airbox and turbo inlets together for both the stock system and the Eventuri.
Testing just the inlets alone shows a 58% increase in flow rate over stock. This is due to the way our inlets increase in diameter at the airbox side which allows for a much lower restriction. Testing the complete system with the airbox shows an increase in flow rate of 90% over stock which is a significant increase. This shows just how restrictive the stock airbox is, with the flow rate dropping by over 25% when adding the stock airbox to the stock inlets. In contrast the flow rate drops by only 11% when adding the Eventuri intake to the Eventuri inlets. With a 90% increase in flow rate, it is clear why there are significant power gains once the RS6 C8 is tuned and the turbos demand a higher flow to create more boost pressure.
Each intake system consists of:
LOWER AIRBOX
We have completely redesigned the entire airbox system including the base which the filter sits inside. We have combined the slam panel with the lower airbox and increased the volume of this area to help increase the total flow rate. Furthermore, the base has been designed to allow the filter to sit at a more favourable angle to the turbo inlets. Where the stock airbox has a 90 degrees turn from the filter to the inlets, our airbox has a less abrupt angle and this allows for a smoother flow path.
AIRBOX LID
During development we designed and tested 4 different designs for the lid and test results showed that V2 was the highest performing. This design was optimised with CFD simulations and provides a smooth flow path from the filter to the inlets. Our design has an increased volume in comparison to the stock lid and is more organically shaped with smoother curves as opposed to the stock lid which is very cuboid. Furthermore the openings to the turbo inlets have been significantly increased in size.
TURBO INLETS
The inlets have been increased in size at the airbox side by as much as 85% more than the stock inlets and smoothly taper down to the stock turbos. This increased size significantly reduces the drag in the turbos and therefore allows them to work more efficiently. We have also incorporated CNC machined bushes and rings in the inlets for structural strength. For cars with hybrid turbos, we also have separate inlets available on request to match the different inlet diameters.
BESPOKE BMC FILTER
Our airbox required a bespoke panel filter and for this we collaborated with BMC who have developed their iconic filter specifically for our system. It is a washable 4-layer cotton mesh filter which provides superior filtration while maintaining a low pressure drop.
The complete intake system comes together to provide a superior airbox which allows the turbos to reach target boost levels much sooner and therefore the engine is able to produce more power earlier in the RPM range. When combined with a tune where the boost levels are increased, our airbox provides the required de-restricted flow path for the turbos to achieve elevated boost pressures.
Part number: EVE-C8RS6-CF-INT
EVENTURI Carbon Intake System For Audi RS6 RS7 C8
| Tuning Equipment | |
| Brand | EVENTURI |
| Car |
Audi RS6 (C8) (2019-2023) 4,0TFSi Audi RS7 (C8) (2019-2023) 4,0TFSi |
| 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, Audi RS6 RS7 C8
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