Cone filter surface area?

[Alexia]

Does anyone have some numbers laying around for the typical surface area of the aftermarket intakes with cone filters? The numbers I am finding on K&N's FAQs list 75 to 100 square inches which is about the size of a sheet of paper. I hope they just mean that is the length of the medium and not the total square inches.

The stock panel air filter I measured has a surface area of 1,440 square inches. 120 6" wide pleats by 1" deep = 240" x 6" = 1,440 square inches.

 

[Dr. Dyno]

Does anyone have some numbers laying around for the typical surface area of the aftermarket intakes with cone filters? The numbers I am finding on K&N's FAQs list 75 to 100 square inches which is about the size of a sheet of paper. I hope they just mean that is the length of the medium and not the total square inches.

Yes, K&N's figures are just the area of the medium and don't take into account the depth of the pleats. A 9"x6" cone filter with a 3" flange will give you plenty of cfm airflow capacity and much more than stock.

 

[Alexia]

Yes, K&N's figures are just the area of the medium and don't take into account the depth of the pleats. A 9"x6" cone filter with a 3" flange will give you plenty of cfm airflow capacity and much more than stock.

Thanks! I plan to stick with the stock air box for now with a larger unrestricted hose to the throttle body and do some comparisons later with a cone filter hooked up to the same pipe.