Eventuri intake system for Audi RS6 & RS7 C8

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Eventuri intake system for Audi RS6 &RS7 C8:

Performance increase – Stage 1: 45-50 hp, 49 ft-lbs

Stage 1 acceleration 100-200 km/h: Reduced by 0.6 s

Performance increase – Stage 2: 60-80 hp, 60-70 ft-lbs

The intake system of the Audi C8 RS6 is the result of extensive development, testing, and prototyping. Our goal was to address two main criteria: 1) Increased flow rate. 2) Smooth airflow. The first goal was achieved by utilizing all the limited space in the RS6 engine bay, which was severely restricted by the underside of the hood. Our solution involved completely redesigning the airbox to maximize volume, enlarge the airflow inlets, and create a more favorable filter angle to the turbos. Furthermore, we dramatically increased the size of the turbo inlets by up to 85% when measuring the cross-sectional area at the openings. The second goal was achieved by developing an organically shaped system with a specially rounded panel filter to ensure the airflow path contained no sharp corners, thus enabling laminar flow. With smooth transitions from the filter to the turbo inlets, our intake minimizes turbulence, allowing the turbos to operate more efficiently. We partnered with BMC to develop a custom-designed filter element to ensure that the filter area is as large as possible while maintaining a clean airflow.

With all targets met, our C8 RS6 intake system delivers on all fronts, allowing the turbos to generate boost more efficiently. This results in improved throttle response and significant power gains, independently tested, which increase with higher revs. The measured power gains result from our complete system, developed from the airbox base and lid to the inlets.

Each intake system consists of:

• Carbon fiber airbox base
• Carbon fiber airbox cover
• Custom-made BMC panel filter
• Enlarged turbo inlets with CNC-machined reinforcement
• Custom silicone hoses with OEM specification clamps
• Custom-made hardware

Appraise:

• with TÜV parts certificate.

Test bench testing

Our intake has been independently tested both on the dynamometer and on the road. At higher tuning levels, the turbos require more air, and therefore the stock airbox becomes a greater constraint. Here are some results from reputable tuners who have tested the intake.

STAGE 1 TEST

Dyno tests were conducted by Awesome GTI in the UK on their own C8 RS6, fitted with an aftermarket OPF rear exhaust and a custom Stage 1 remap. They ran the car four times in fourth gear with the stock airbox, then switched to the Eventuri intake while the car remained on the dyno. The car was then run four more times in fourth gear. All tests were performed on the same day, and no other modifications were made. The graph below shows the peak power of the stock airbox versus the peak power of the Eventuri intake. Both were the initial dyno runs, with subsequent runs reducing power due to heat. As can be seen below, the intake provides a significant power gain across the entire rev range. The highlighted point shows the highest rev-limited increase of 60 hp at the crankshaft.

STAGE 2 TESTING

Dyno tests on a Stage 2 RS6 were conducted by Eurocharged Canada on a car equipped with aftermarket downpipes, intercoolers, and their own Stage 2 remap. Figures shown here are at the wheels. They ran the car multiple times with both the stock airbox and the Eventuri airbox, with the results shown below, comparing the best results with the best Eventuri results. Again, we can see a dramatic increase in power, and being Stage 2, the stock airbox is an even greater limiting factor. The highlighted point shows the highest increase in the rev range, with 79 hp at the wheels.

DRAG STRIP EXAM

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 100-200 km/h times. The car was run three times with the stock airbox to ensure repeatability, and then the intake was swapped to the Eventuri. The car was then run three more times to ensure consistency. The results are:

QUARTER MILE

Standard airbox 11.2s

Eventuri 10.75s

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100-200 km/h

Standard airbox 7.46s

Eventuri 6.90s

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All our products come with a standard 2-year warranty. However, this depends on the type of product. For more details, see here.

At Upgrade my Car (R-Trade GmbH), we take great care to fully inform our customers about the intended use of our products. Please note that, unless otherwise stated, all of our products are specifically designed for professional racing use. These are intended solely for use in competitions on race tracks sanctioned by an officially recognized racing organization. We would like to point out that any use of our products outside of these terms and conditions, including recreational off-road use, may potentially violate local, state, or federal laws. It is important to understand that Upgrade my Car (R-Trade GmbH) assumes no liability for the legality of using our products on public roads. The responsibility for compliance with applicable laws lies solely with the purchaser. We strongly recommend that our customers familiarize themselves with and comply with applicable legal regulations before using our products.