Thinking of upgrading your air filter or intake system? There are a few things to consider and help you make the right choice.
PURPOSE OF AN AIR INTAKE SYSTEM
The function of the air intake system is to allow air to reach your engine. Oxygen in the air is one of the necessary elements for the engine combustion process. On most modern vehicles the intake system consists of a plastic air box which housing a paper air filter. Before air enters the system the filter removes small dirt particles and debates. The air intake system draws air through the filter and along pipework to the throttle body. Some systems may contain MAF (Mass Air Flow) sensor which is used by the ECU to determine the mass of air entering a fuel-injected internal combustion engine.
AIR INTAKE MAF
A MAF sensor determines the mass of air flowing into the engine’s air intake system. The measured Airflow has a direct effect on the fuelling. Stock and Revo calibrations are specific to (unless otherwise specified) a standard scaled MAF sensor housing. There are two common types of mass airflow sensors in use on automotive engines. They are the vane meter and the hot wire.
There are many aftermarket intakes available, but not all of them have correct MAF housing scaling. When upgrading your intake system correct MAF scaling is important, especially when tuning your vehicle. Correct scale mass airflow sensor housing is an important part of the design and testing process of all Revo intakes.
One of the main reasons for upgrading an Air filter or intake system is to remove any restrictions in the stock parts. When increasing power it’s paramount to ensure your engine can get access to enough air. However, not all products are made equal. Manufactures make the stock system to provide enough air for a vehicle with stock performance, whilst also keeping costs to a minimum and considering noise. This often results in an effective system for its purpose but something that can soon become a restriction when tuning a vehicle.
The stock air filter on a production vehicle is 95% of the time made from paper, these paper filters are notorious for dust build up. Once the dust builds up so much it can restrict the amount of air getting into your intake, consequently stifling the performance of your engine.
When upgrading just the air filter, the use of multi-layered foam technology is often used. Using foam increases the filter’s surface area and is washable, compared to standard paper and cotton filters which trap dust on the surface and become less efficient the more they are used, choking the engine and reducing performance. Maintaining flow efficiency whilst trapping The different levels of foam are used to trap dust and dirt while maintaining flow efficiency over time. One of the reasons why Revo filters all use this design.
OPEN CONE SYSTEMS
Open cone systems completely replace the OEM air intake system. This type of system offers an aggressive intake sound, more airflow and often an improvement in performance when used alongside ECU performance software. The same multi-layered foam technology can be used to maintained flow efficiency and a washable filter. The systems often replace OEM hoses with something that increases airflow with a large diameter hose or pipe. Making the pipes from a single piece of mandrel bent aluminium or silicone can remove joins and corrugated parts. All this helps to smooth out airflow and reduce air turbulence with the system. Revo’s designers are keen to remove and restrictive elements to give the engine access to the volume of air needed.
Keeping air intake temperatures low is key to improving performance. Using materials such as carbon fibre, not only improves visual enhancement but acts as a heat barrier. Revo carbon series keeps ambient engine heat away to ensure has access to the coldest air possible and to minimise heat soak.
Only Revo air intake systems are specifically designed to work in harmony with your vehicle and Revo Performance ECU software. Increasing the speed and volume of air that can reach the turbo for the performance you can feel all the way to the red-line.