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Eventuri
Performance Gain (RS3 8V with Hybrid Turbo): 14-20hp, 30-35ft-lb
Flow Rate increase at 24″ H2O : 42% increase over stock (Using Stock Flange)
Fitment for RS3 8Y, Left hand drive. Finished in raw carbon – no clearcoat.
Presenting our all carbon RS3 turbo inlet elbow now for the 8Y version. The elbow is the same as our original one developed for the 8V but with added fitment hardware for the new breather system found on the North American 8Y engines. The rest of the World uses the same inlet as our current 8V package. We invested mFonths of intense R&D in developing an inlet which leaves no room for compromise. VOLUME – FLOW QUALITY – TEMPERATURE were the parameters we sought to optimise for this inlet.
1) VOLUME : Inlet Diameters – Eventuri 103mm : Stock 72mm. Outlet Diameters – Eventuri 74mm : Stock 56.4mm. Clearly with significantly larger internal diameter sizes, the Eventuri elbow encapsulates a much larger internal volume which de-restricts the flow path to the turbo.
2) FLOW QUALITY : Having just a large internal volume is no good unless the flow path also allows for smooth airflow to the turbo. By using high temperature Prepreg Carbon Fiber we have managed to achieve a smooth internal surface. In contrast, the stock and other aftermarket elbows are all made from cast aluminium which end up with a rough internal surface. This coupled with the smooth curvature of the elbow results in a flow path which minimises turbulence.
3) TEMPERATURE : The final criteria was to minimise the conduction of heat into the airflow. The stock inlet is directly connected to the turbo and so immediately conducts heat as the turbo spools. Our system uses a machined flange which connects to the turbo and then a silicon coupler with an integrated thermal spacer to keep the carbon elbow from having direct contact with the turbo. This barrier coupled with the low through-thickness thermal conductivity of carbon fiber results in less heat being transferred to the airflow.
Optional Turbo flanges available for popular hybrid turbos. Sold separately.
The Eventuri RS3 8Y Turbo Inlet is manufactured from high temperature prepreg carbon fiber and come with a number of other components engineered to perform a specific purpose and fabricated to the highest of standards.
Fitment is available for RHD and LHD Vehicles. North American vehicles have a specific kit for the 8Y with a different breather line. The inlet is designed to fit our RS3 8Y intake system.
Carbon Fiber Inlet Elbow
Our Turbo Inlet provides a smooth flow path from the 103mm diameter inlet to the 74mm outlet to the turbo flange. We designed the shape with a continuous curvature and maximised the internal volume without affecting the airflow negatively. The inlet is finished in raw carbon so has no clear coat - which would not be able to withstand the heat generated from the turbo and exhaust manifold. The carbon construction allows us to keep the inside flow surface smooth which helps with reducing the surface friction and in turn allows airflow to move easier. We ensure strength and rigidity by maintaining a 2mm wall thickness throughout the part. Finally for added protection there is a heat reflective layer applied where the tube crosses the exhaust manifold. This reduces the radiant heat absorbed by the tube. The advantage of using carbon fiber over the traditionally used cast aluminium is mainly down to the thermal conductivity and the ability to keep the inside smooth. The table below summarises the advantages.
Minimising Heat Soak
When the RS3/TTRS accelerates, the turbo generates intense heat as it spools. Since the face of the turbo is directly connected to our CNC machined flange, we designed a silicon coupler to also act as a thermal barrier between the carbon tube and the metal flange. Internally the silicon has a spacer which separates the carbon and metal surfaces. This reduces the conductive heat transfer and therefore allows power to remain more constant since the inlet does not heat soak as quickly as the stock inlet does.
CNC Machined Turbo Flanges
We provide a choice of turbo flanges which are all CNC machined from aircraft grade aluminium and anodised. We will also be adding more flanges for new hybrid turbos coming to the market.
Currently Available Flanges:
Please inquire for other fitments.
Flow Bench Testing
We conducted flow rate tests 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 elbow. The results show how restrictive the stock elbow is, which we have managed to improve from 42% using the stock flange up to 58% in maximum possible flow rate using the larger GTX flange. Since the RHD version requires clearance for the brake fluid reservoir we added a scallop into the side which reduces the volume of the tube but still retains a significant increase in flow rate over stock with an increase of 52% over stock using the GTX Flange.
Dyno Testing
Our carbon elbow has been independently tested by reputable tuners globally. The first set of results are from BR Performance Netherlands who tested our system on a TTRS equipped with a TTE700 hybrid turbo. Tests were done on the same day back to back with the hood closed. They tested the stock airbox against our stage 3 intake with the stock elbow and then added our elbow for the comparison.
Dyno Results Summary:
EVE-TRB8Y-LHD-NIL - USA ONLY, Audi RS3 8Y LHD Carbon turbo inlet with NO FLANGE
Manufactured by
Eventuri
Warranty
One Year Eventuri Warranty
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