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SR
Dodge Dakota
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10/15/2004
03:06:33
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 Subject: Interesting air filter test report
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http://home.usadatanet.net/~jbplock/ISO5011/SPICER.htm
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Ted
Dodge Dakota
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10/15/2004
11:55:07
|  RE: Interesting air filter test report
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Most of the test points were taken with AC course dust. This is a good representation of what your vehicle will see off-road. AC fine is more representative of what you will see around town. K&Ns are typically below 90% for AC fine and paper is about 98-99%
One thing that was not shown was filtration efficiency vs time or loading. This is a very important topic!. As filters load with dust they get more efficient since the dust-cake aids in filtration. Typically 95% of the dust that gets through, gets through in the first 500 miles. Kind of makes you think twice about replacing your air filter more often than necessary!! Filter companies have looked at pre-loading the filters to get around this.
One thing to note is that I believe the AC-Delco filter is a fluted design with synthetic media overlayed on paper media. This gives it the high filtration efficiency and the ability to hold a lot of dust.
Ted
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Ted
Dodge Dakota
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10/15/2004
12:07:56
| RE: Interesting air filter test report
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More info for ya...
The Amsoil filter tested was a 2 stage
http://www.1st-in-synthetics.com/air_filter.htm
If the AC-Delco is the fluted design, it is made by Donaldson. Based on the data, I would say it has to be a powercore filter.
http://www.emea.donaldson.com/en/engine/support/datalibrary/004319.pdf
Amsoil is now marketing the powercore filters under their brand name as well. These are made by Donaldson.
http://www.1st-in-synthetics.com/powercore.htm
Ted
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peedee
Dodge Dakota
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10/15/2004
13:17:30
| RE: Interesting air filter test report
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I cannot remember the numbers now, but when I replaced my factory filter in my '02 dak 4.7 with a K&N I read the #'s on the side of the factory filter and found them to be better than the K&N. At first the K&N gave pretty good performance, but very soon I found it not to make much difference and the snorkle tube and air horn were full of fine dirt. With the factory filter, I have clean passages and "just as good" performance. I don't know about other companies, but I like the #'s on the factory filter.
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samtheman
Dodge Dakota
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10/16/2004
10:17:42
| RE: Interesting air filter test report
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I own a 03, 5.9, QC, 4X4. What I am about to discuss, however, would also probably apply to the 4.7 since the initial stages of the intake are the same. All GM and Ford trucks have their intakes plumbed right into the fender area. These Daks stop short of the fender opening. I reasoned that our intakes must also suck in a lot of engine compartment heat. I purchased four inch intake tubing from McMaster Carr and plumed mine into the fender, sealing around it with duck tape. I also cut a bigger opening behind the headlight to get more air in. I checked my air filter at 5,000, fearing I might be sucking in a lot of dirt. It was perfectly clean as near as I could tell. Replaced the AC filter at 15,000 but could not see any dirt on it. So where is the sirt going?
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but
Dodge Dakota
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10/16/2004
10:19:43
| RE: Interesting air filter test report
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the 05 is plumbed into the fender.
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