*Some photos show our optional turbo hose and engine cover
Performance increase: 14 HP, 15 ft. -pound
The Honda FL5 intake is the culmination of an iteration of our FK8 system to provide an optimized solution, taking advantage of the increased space in the FL5 engine bay. By maintaining a sealed airbox we have minimized the heat absorption to ensure a constant supply of cold air to the turbo. Since the intake is located directly behind the radiator, it is essential that the filter is not exposed, which would result in hot air being sucked into the turbo.
*Some photos show our optional turbo hose and engine cover
Performance increase: 14 HP, 15 ft. -pound
The Honda FL5 intake is the culmination of an iteration of our FK8 system to provide an optimized solution, taking advantage of the increased space in the FL5 engine bay. By maintaining a sealed airbox we have minimized the heat absorption to ensure a constant supply of cold air to the turbo. Since the intake is located directly behind the radiator, it is essential that the filter is not exposed, which would result in hot air being sucked into the turbo.
We also replaced the OEM intake hose, which creates turbulence and therefore increases resistance. With the FL5 Intake, we designed a seamless path from the filter to the inlet tube, eliminating resistance and smoothing out airflow. The movement of the engine is now managed by the inlet pipe itself, which can move inside the airbox while maintaining a heat seal.
Our carbon airbox has been designed to maximise the use of available volume and minimise heat input. The resulting performance gains and aesthetics are industry leading for the FL5 Type R.
With an enlarged airbox and a direct airflow path to the turbo inlet pipe, our intake allows the turbo to reach maximum boost levels quicker through a lower waste gate duty cycle. Our intake has been independently tested by Honda tuning specialists. The results below show how the stock airbox compares to the Eventuri intake system on a standard car with a stock map and exhaust. The dynamometer tests were carried out back-to-back on the same day and with the bonnet closed.
The Eventuri FL5 Type R intake system is made up of a series of components designed to perform a specific purpose and manufactured to the highest standards. Here are the details for each component and the design ethic behind them:
Each intake system consists of:
Airbox Container in carbon
The FL5 airbox has been designed to make the most of the volume in the engine bay. It protects the filter from multiple heat sources, the most direct of which is the radiator and fan which pushes a flow of hot air directly into the intake area. The other significant heat sources are the turbo and downpipe which are located adjacent to the intake area and once the engine has reached operating temperatures the engine bay quickly becomes soaked in heat. All these heat sources require a complete airbox system as a shield to keep intake air temperatures low.
Carbon Venturi Tube
To connect our cone filter to the stock turbo tube, we designed a tube with an integrated MAF sensor mount and a venturi stack that matches the inside diameter of the filter neck. This curvature allows the airflow to remain laminar as it passes through the filter and enters the tube. This replaces the stock rubber hose that has several deep ridges and creates turbulence in the flow path. To maintain a certain degree of flexibility, the tube is independent of the airbox housing and is able to move within the airbox, which relieves any stress resulting from engine movements. The Eventuri tube design creates an aerodynamically efficient flow path from the filter to the turbo, allowing the turbo to generate boost more efficiently and reduce lag.
Custom Silicone Hose
The final component is our silicone hose that replaces the OEM hose and breather assembly to the alloy turbo pipe. The hose removes all interface between the carbon intake and the metal turbo pipe. Additionally, we have incorporated an internal step that mates to the OEM metal pipe. This eliminates the exposed edge of the metal pipe that is exposed with other aftermarket silicone hoses. This silicone hose is the final part of the intake and allows for smooth airflow from the intake to the turbo pipe.
