does intake filter size matter?
07-08-2015, 08:00 PM
#1
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Join Date: Apr 2012
Posts: 23
does intake filter size matter?
I have a short ram air intake currently with an oiled Stillen filter (with a length of 6 inches), was thinking about changing it to a AEM dry flow when I noticed the available dimensions included different filter lengths without changing the flange diameter.
How do I tell which size air filter would be the best? I'm assuming that a larger filter would have less performance improvement and a small filter may not provide the needed airflow when required.
To make things more complicated, I remember seeing the following picture of infinimax96's intake below. It looks smaller in length then the stillen cone I have.
How do I tell which size air filter would be the best? I'm assuming that a larger filter would have less performance improvement and a small filter may not provide the needed airflow when required.
To make things more complicated, I remember seeing the following picture of infinimax96's intake below. It looks smaller in length then the stillen cone I have.
07-08-2015, 10:32 PM
#2
I have a short ram air intake currently with an oiled Stillen filter (with a length of 6 inches), was thinking about changing it to a AEM dry flow when I noticed the available dimensions included different filter lengths without changing the flange diameter.
How do I tell which size air filter would be the best? I'm assuming that a larger filter would have less performance improvement and a small filter may not provide the needed airflow when required.
To make things more complicated, I remember seeing the following picture of infinimax96's intake below. It looks smaller in length then the stillen cone I have.
How do I tell which size air filter would be the best? I'm assuming that a larger filter would have less performance improvement and a small filter may not provide the needed airflow when required.
To make things more complicated, I remember seeing the following picture of infinimax96's intake below. It looks smaller in length then the stillen cone I have.
07-09-2015, 12:16 PM
#3
It absolutely does matter ...
Regardless of the diameter of your intake tube, the volume of air that can be drawn is dictated by the volume of air that can pass through your filter element.
The volume of air that can pass through your filter element is dictated by the material used as the element (i.e. material flow) and it's surface area.
With most cone or panel filters advertised as "performance" filters, I'd imagine that the filter material would be at least as flowable as the OE paper material but the surface area is another matter.
Certainly don't use a filter element with a surface area that's less that an OE filter.
But ... point being ... the size does matter.
Regardless of the diameter of your intake tube, the volume of air that can be drawn is dictated by the volume of air that can pass through your filter element.
The volume of air that can pass through your filter element is dictated by the material used as the element (i.e. material flow) and it's surface area.
With most cone or panel filters advertised as "performance" filters, I'd imagine that the filter material would be at least as flowable as the OE paper material but the surface area is another matter.
Certainly don't use a filter element with a surface area that's less that an OE filter.
But ... point being ... the size does matter.
Last edited by Turbobink; 07-10-2015 at 04:32 AM.
07-10-2015, 08:53 AM
#7
Probably thinking the air would have a more direct, non-blocked path between the front of the car and the filter cone.
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