- Joined
- Sep 23, 2004
- Messages
- 4,290
- Points
- 5,101
- Vehicle Year
- 2008
- Transmission
- Automatic
Well, haven't done anything in a couple weeks, but thought I'd update this a bit for ryan. 
The air enters through the bottom of the unit, and is swirled by the angled "vanes" that you can see in the black base. Once spinning, particulate is driven up the conical inner surface of the cup, and eventually slug outwards via centrifugal force. The "clean" air then enters through the center and down into the intake tube. This will feed a conventional air filter, although Donaldson claims these will trap 80% of particulate matter prior to entering the filter element.
I'm going to try to cut out the hood flange tomorrow if I can get out there. I injured my knee last weekend, and I'm still hobbling around a little.


The air enters through the bottom of the unit, and is swirled by the angled "vanes" that you can see in the black base. Once spinning, particulate is driven up the conical inner surface of the cup, and eventually slug outwards via centrifugal force. The "clean" air then enters through the center and down into the intake tube. This will feed a conventional air filter, although Donaldson claims these will trap 80% of particulate matter prior to entering the filter element.


I'm going to try to cut out the hood flange tomorrow if I can get out there. I injured my knee last weekend, and I'm still hobbling around a little.