Birkin airbox

[maurice1]

Hi all

My Birkin is running the standard throttlebody and inlet manifold and ECU. Has anyone got pictures of airboxes using this setup.

I have a fair idea what I am going to make, a completely sealed from the engine bay airbox with a K & N cone filter and a Revotec inlet duct on the side of my bonnet flowing into the airbox.

I love the look of the Birkin bonnet with all the rows of louvers so I do not want a scoop/duct on top. There is no room with all the louvers anyway.

As my car is painted a Mazda colour Black cheery you will hardly even notice the duct on the side of the bonnet.

It is also in a reasonably good pressure area as well.

It is always good to see what other people have done.

The Inlet duct I am going to use is the GT Air intake in black see link.

 

[url=http://www.revotec.com/acatalog/Air_Intake_Scoops.html][/url]http://www.revotec.com/acatalog/Air_Intake_Scoops.html

 

I have also read that your intake manifold/plenum should be twice the volume of your engine, eg. 2.0 litre duratec x 2 is 4 litres and the airbox should be twice this size, eg. 4 x 2 is 8 litres. Anyone else have ideas, thoughts?

 

Cheers

Maurice

Edited May 24, 2013 by maurice1

[BCBirk]

I modified a simple plastic container with an aluminum duct to draw air from in front of the rad --standard K&N cone inside.

 

It significantly reduced intake temps in heavy traffic but I don't think it has any notable performance gains at speed.