Ilmanputsari

Tää kannattaa lukaista. Kuten sanottu kompromissejahan nämä suodattimet on virtauksen ja suodattavuuden suhteen, mikä käyneekin tuloksista ilmi.


Checkout the results of a COMPLETE ISO 5011/SAE J726 test of several Air Filters for the GM Duramax Diesel. The test was performed under controlled conditions using a $285,000 machine at TESTSTAND Corp of Rhode Island (The manufacturer of the machine). The Test was organized by Spicer who is a member of TheDieselPlace.com forum.

The following is a quote from Spicer’s post on TheDieselPlace forum.

“In the order of filtering efficiency the results are:

FILTER % Efficiency

AC Delco OE 99.93%
Baldwin 99.72%
No name filter (made for gas engine, 1/3 less pleats) 99.32%
AFE ProGuard 7 (73-10062), panel filter 99.23%
WIX/Napa 99.03%
Purolator 98.73%
Amsoil, new style 98.63%
UNI 97.93%
K&N 96.80%

Additionally, these 2 were tested using FINE test dust. The K&N was cleaned and retested, the AFE was the conical version:

K&N 89.85%
AFE Conical 92.33%


FLOW RESTRICTION FROM BEST TO WORST:

FILTER RESTRICTION in Inches H2O

K&N 4.54
Mystery bargain filter 4.78
AFE Pro Guard 7 Panel 4.99
Purolator 5.05
WIX/Napa 5.06
UNI 5.40
Baldwin 5.71
Amsoil 5.88
AC Delco 6.23

DIRT HOLDING CAPACITY From best to worst. This is the AMOUNT OF DIRT it took to create an ADDITIONAL 10 inches of water restriction. At that point the test is terminated.This indicates HOW LONG a filter is good before it must be cleaned or replaced.

AC Delco 573.898 grams
WIX/Napa 447.366
Purolator 388.659
Baldwin 388.154
UNI 374.638
Mystery bargain 350.402
AFE Pro Guard 7 232.516
K&N 211.58
Amsoil 196.323

TOTAL DIRT PASSING THE FILTER DURING THE TEST. This is how much dirt your engine will take in if you use the filter for the duration that would cause the filter to become "dirty" enough to need replacement or cleaning. The "Dirt Passing The Filter" is the dirt collected by the "Post Filter" during the test.

FILTER DIRT IN GRAMS PASSED
AC Delco 0.4 g
Baldwin 1.1g
AFE Pro Guard 7 1.8g
Mystery Bargain 2.4g
Amsoil 2.7g
WIX/Napa 4.4g
Purolator 5.0g
K&N 6.0g
UNI 7.9g

Note: The Purolator was reported to have a seal malfunction during the test and passed more dirt than it would have with a good seal.”

Note! This message was posted anonymously!