Toyota MK5 Supra Carbon Intake

Awesome lightweight carbon intake system from Eventuri brand — world known manufacturer of performance intake systems. Not only crazy outside appearance and highest quality carbon, but patented technology of high-flow air filters and air flow distribution. Bolt-on installation, cooler air at intake and improved performance as a result. And stunning look. What else do you need for your legendary Supra?

Without any reservation and doubts — Eventuri has developed a great technical solution through extensive real world testing and airflow simulation analysis. 
 

The intake system for Toyota Supra MK5 (A90) 3.0l turbo-engine has been developed to provide the turbo with a less restrictive flow path and to maintain low inlet temperatures. Heat and volume are the main considerations when designing an intake for turbocharged engines. In Supra, the intake system is located next to the exhaust manifold which rapidly heat soaks the engine bay. High temperatures are detrimental for engine performance as the turbo would have to build boost with heated, less dense air and so the only way to ensure IAT’s are kept to a minimum is for a fully sealed intake. This however, results in a restriction with only one stock air feed to draw air in from. During development Eventuri noticed an additional opening into the wheel arch area and took advantage of this by adding a secondary feed to theairbox. Furthermore - sealed airbox also has a heat shield with gold reflective to minimise the radiative heat transfer from the exhaust manifold.

In order to maximise volume the airbox is made as large as possible with a recess for potential strut braces. The stock convoluted intake tube is replaced with a smooth carbon tube which is also larger in internal volume with a starting internal diameter of 111mm (4.4″) smoothly tapering down to match the turbo inlet. The tube provides a smooth path from the filter to the turbo inlet. Finally, for filtration performance Eventuri uses custom made high flow dry filter with a larger filtration area than the stock filter.

The MK5 Supra Eventuri intake has been developed to provide the turbo with a less restrictive flow path whilst maintaining low inlet temperatures. Heat and Volume are the main considerations when designing an intake for turbocharged engines. In the Supra, the intake system is located next to the exhaust manifold which rapidly heat soaks the engine bay. High temperatures are detrimental for engine performance as the turbo would have to build boost with heated, less dense air and so the only way to ensure IAT’s are kept to a minimum is for a fully sealed intake. This however, results in a restriction with only one stock air feed to draw air in from. During development we noticed an additional opening into the wheel arch area and took advantage of this by adding a secondary feed to our airbox. Furthermore our sealed airbox also has a heat shield with gold reflective to minimise the radiative heat transfer from the exhaust manifold.

In order to maximise volume Eventuri made the airbox as large as possible with a recess for potential strut braces. The stock convoluted intake tube is replaced with a smooth carbon tube which is also larger in internal volume with a starting internal diameter of 111mm (4.4″) smoothly tapering down to match the turbo inlet. The tube provides a smooth path from the filter to the turbo inlet.

Finally Eventuri uses a custom made high-flow dry filter which is ISO tested for filtration performance and has a larger filtration area than the stock filter.

Airboxes are crafted from prepreg carbon fiber and serve 2 objectives - to seal the filter against engine bay heat and to provide a dual cold air feed. Since the airbox is positioned next to the exhaust manifold it is crucial for the filter to be fully sealed so Eventuri designed the airbox to encapsulate the filter and at the same time provide a large internal volume. To seal the intake tube Eventuri has designed a laser cut plate with a rubber sealing strip which secures to the airbox. The intake tube passes through the plate and the rubber seal ensures heated air does not enter the airbox. To further minimise heat soak, there is an additional heat shield with a gold reflective layer on the exhaust manifold side which effectively combats the radiant heat transfer.

Having a fully sealed airbox results in the problem of having a restriction for the cold air feed: the stock airbox draws air from a single duct which extends to the front bumper area. During development Eventuri identified another area to draw cold air from which was a gap between the wheel arch and the chassis on which the airbox sits. To utilise this feed Eventuri extended a scoop at the back of  design which protrudes into the wheel arch and can even be seen after installation behind the front wheel. This second feed allows the turbo to draw from a larger area therefore reducing the restriction. Since the scoop extends into the wheel arch area we also incorporated an internal splash guard to deflect water away from the filter.

Final consideration was for race applications where our optional headlamp duct is used for maximum cold air flow. We incorporated a removeable panel on the side of the airbox facing the headlamp so that when the optional duct is used, this panel can be removed for another direct feed of cold air to the filter.

In order to enhance the inlet tube (stock inlet tube has a flexible and convoluted section to provide movement with the engine — this however also adds the possibility of turbulence in the flow path as there are multiple faces which can cause eddies) Eventuri  replaced this with  carbon tube which is smooth and also has a larger internal volume. The company maximised the size of our intake tube, the OEM inlet tube has an internal diameter of 80.8mm or 3.2” at the filter end. Eventuri tube has an internal diameter of 109mm or 4.3”. This equates to a massive 82% increase in cross sectional area over stock. The tube smoothly tapers down to the stock turbo inlet to ensure airflow remains as laminar as possible. The tube also has CNC machined fitting for the temperature sensor and the breather adapter.

Eventuri cone filter is made from a non-woven mesh material which is double layered and is ISO tested to ensure that filtration is in line with OEM standards. The filter is cleanable and very stable at high temperatures with the base material being Urethane. The filter incorporates and internal flow guiding cone to help aid the airflow to converge while reducing the possibility of a stagnation point in the middle of the filter space. The filter medium has a significantly larger surface volume than the stock panel filter.

Features:
 

• Incredible outlook and appearance under hood
• Highest quality pure carbon fiber and air-filters material
• Bolt-on installation
• Increased throttle response
• Large 4,3″ intake pipe (82% increase)
• Faster acceleration time and power gain even without remap (just think how fast it will after appropriate software tune)
• Aerodynamically more efficient airflow path from the filter to the MAF tube
• Custom housings provide a smooth transition from the filter to the intake tube keeping airflow laminar
• Patented filter flow technology
• Integrated CNC machined MAF sensor mount on carbon tube

Compatibility list:

BMW М340 G20
BMW M440 G22