Air filter replacement micron list?
11-17-2013, 09:27 PM
#1
Senior Member
Thread Starter
Air filter replacement micron list?
Does anyone know if they have a micron test list for a 5.4L air filter replacements? I'm curious after searching threads people going with aem or afe or whatever brands I'm more interested in the micron abilities for a dry filter. Or if anyone can shed some light on this. Thanks!
11-18-2013, 07:20 AM
#2
Senior Member
Micron test for an air filter?
What's the point, as long as the filter meets OEM specs?
From K&N's website:
We design our air filters to provide superior filtration of the contaminants that can harm your engine while maximizing the airflow characteristics of the filter in question. The ability of an air filter to protect your engine is generally measured in accordance with testing procedure ISO 5011. We subject a sample of our filter designs to this test procedure using Coarse Test Dust, which includes particles ranging in size from less than 5.5 microns to 176 microns. As a point of reference, a human hair is approximately 50 microns in diameter. The result of the above test procedure is a specific air filtration efficiency number. This efficiency number represents the percentage of test dust retained by the filter and thereby kept out of an engine. Our goal is to design our air filters to achieve maximum airflow while targeting overall filtration efficiency at 98%.
"Better" performance in a micron test would by extension mean more restrictive, hence worse flow, which is not what the performance filters are trying to accomplish.
What's the point, as long as the filter meets OEM specs?
From K&N's website:
We design our air filters to provide superior filtration of the contaminants that can harm your engine while maximizing the airflow characteristics of the filter in question. The ability of an air filter to protect your engine is generally measured in accordance with testing procedure ISO 5011. We subject a sample of our filter designs to this test procedure using Coarse Test Dust, which includes particles ranging in size from less than 5.5 microns to 176 microns. As a point of reference, a human hair is approximately 50 microns in diameter. The result of the above test procedure is a specific air filtration efficiency number. This efficiency number represents the percentage of test dust retained by the filter and thereby kept out of an engine. Our goal is to design our air filters to achieve maximum airflow while targeting overall filtration efficiency at 98%.
"Better" performance in a micron test would by extension mean more restrictive, hence worse flow, which is not what the performance filters are trying to accomplish.
11-18-2013, 12:25 PM
#3
Senior Member
Thread Starter
From poking around on threads here seems k&n aren't to great keeping dust out. I want a dry paper filter like motorcraft one or amsoil dry. They seem to have a higher micron and since I don't plan on doing any performance mods except exhaust I want something that keeps the dust when I'm out in backcountry dirt roads.
