Thanks Fisher,

Here is some great information for thse considering the AIS:

"Hello Folks,

Please allow me to introduce myself. My name is Jordan Flagstad, I am a Senior Automotive Engineer at Donaldson Company in Bloomington, MN. Donaldson designed and manufactures the new AIS for the Ford 7.3 liter Turbo Diesel pickups that looks to be the focus of discussion along this thread and a couple others in this forum.

I was asked to join this forum to act as a technical laison (Talk Shop) with you folks concerning the new AIS for the 7.3 liter Power Stroke. I must say, I graciously accepted this assignment as being a turbo diesel pickup owner myself I think I share a lot of interests here.

OK, enough about me....Let's talk about this new AIS. With this new system, you are putting "Big Rig" performance under the hood of your pickup. This new system offers 3x more dust load, lower restriction and newer technology than the original system.


Some of the concerns / questions I have read in this forum are:

* Is the restriction of this new AIS higher than the standard system? The answer to this is no, the new systems restriction numbers are considerably lower than the standard system.

* Does this system provide a longer service life than the standard system? Yes, the new AIS has a service life on the order of 3 times the dust loading capacity of the standard system.

* What is the filtering efficiency of the new AIS? The filtering efficiency of the new AIS is 99.9%+. The system will load approximately 900 grams (just about 2lbs.) of dust to the trip of the Filterminder. With a 99.9% efficiency rating this would mean that less than 1 gram of dust would pass through the AIS to the clean air side. Competing with this new AIS on the market today, are various aftermarket induction systems that utilize washable filters. I have tested some of these filters and found their filtering efficiencies to be as low as 70%. This would mean on a 900 gram dust load, 270 grams (just over 1/2 lb.) of dust will be ingested into the engine. Now this would be devastating to any engine and more so to an engine with a 100,000+ rpm balanced turbo charger.

* It looks like the Filterminder trips at a lower pressure, Is this true? This Filterminder is specially calibrated for this system. The Filterminder is calibrated to trip when the restriction at the outlet of the cover reaches 25" H2O. The Filterminder is not located directly in the outlet of the cover, so when tested with a vacuum pump, it may trigger at a lower pressure. As I stated above, it is calibrated to trigger when the pressure in the outlet is at 25" H2O, although the pressure in the location of the Filterminder may be somewhat different than that.

* Is the system worth the money? The answer to this question is really up to the person who owns the truck. In my own opinion, this system is a great bargain being that it was custom engineered for the vehicle, it is injection molded, and employs some of the best cutting edge filtering technology available today. It is also less expensive than some of the aftermarket induction systems mentioned above.

Hopefully I have answered most if not all of the questions I have found on this forum. In the future, I plan to visit this forum a couple times a week to check in and see if I can answer any more questions you may have.

Thanks,"

Jordan S. Flagstad
Senior Automotive Engineer
Donaldson Company, Inc.

 

I just installed the AIS severe duty filter intake assembly.

What a fine piece of construction for only $200.00. (Hell, the battery tray and old intake assembly alone looks worth that much). Everything fit perfect and it is definitely a high tech filter.
I'll see how it works tomorrow.

What got me is the mounting holes were already punched and in perfect posiiton on the inner fender, the indentation in the hood insulation fits the contour of the housing.......hmmmmmm...almost like Ford had this in the works and was working on this upgrade for a while......very curious.

 

After installing mine, I received more airflow restriction, more smoke and less performance, but uncomparable filtering for very dusy conditions. Great for slow driving in construction areas or Off roading. I remove it for Highway driving or towing and use the Tymer setup.

The installation and removal is easy. (less than 10 minutes)

 

Michael,

See my new thread on the "Filter Minder" I took the PSD for a ride and the minder was maxed out twice!

I'm running a chip and it never did that on the old assembly.
I boosted 20-25 lbs several times.

 

Jordan, I believe the AIS DOES filter better just by looking at the filter....but if it does trip the filter minder, what else could this mean but more restriction. Should I change the stock filter minder to my AIS set up? Are they different and I am getting a false reading? My SCMT trips the minder half way, but my new Diablo pegs it the first time you romp on it. Obviously I want the best of both worlds. I DO want to keep my AIS, but I also want to get sufficient flow to handle my tuner. Is there maybe a less restrictive filter out there that filters sufficiently, but flows better that can replace the stock AIS element....or does this mean I have to ditch the AIS in exchange for more air flow.