I may have to ammend those numbers. Since the switch to the "new" fuel I seem to have dropped about 1 MPG. I usually keep it around 60 when towing.

Frank

 

done this work good no more filter minder problems

 

Brother, I'm such a noobie. But, if I don't ask, I'll regret it.

You guys talk about "filter minder" problems. I just had the AIS system installed. Within the first week, the air filter light came on and has stayed on. Is this what you are referring to?

 

Yep, that is exactly what it is. Yours have the electronic minder feature that turns the light on on the dash.

 

Thanks! I won't tell you the grief I've been feeling not knowing why that light came on. After reading this entire thread, I went and looked under the hood. Yep, my filter minder was indicating complete air restriction. I reset it. No more dash light. I bookmarked the filter minder web site for further reading.

Now I need to see if the filter minder will again set off the light when I pull the trailer the next time. I have not done the Zoodad mod or the newly named dfuser mod. I am debating doing one or the other.

 

Do the mod, you will not regret it. I'd also do the fender sleeve as well.

 

I done this one http://dfuser.com/img/ram_air.JPG and minder just pulls where you can barely see it

 

dfuser, I'm not sure I understand the "fender sleeve" mod. I have pictures of Zoodad and dfuser mods.

Also, thanks rbaker6336 for your picture and testimonial!

 

The fender sleeve is a mod that allows you to pick up air from the fender into the AIS system. You do have to make an openning into the side of the AIS. The fender sleeve piece will then fit between the AIS and an openning in the fender.

 

dfuser - has anyone posted pictures of this mod? Sounds interesting.

 

Here you go:

http://www.dfuser.com/img/foamsleevelargeweb.jpg

Bill

 

A FilterMinder is a very worthwhile tool in determining filter restriction and when to change it. There's a problem in it's use with the AIS, however.

The FilterMinder uses under-hood ambient air as it's "zero-reference" to measure the vacuum on the "clean" or "filtered" side of the filter. When designing it, the company assumed that there would not be a time when the "dirty" or "unfiltered" side of a filter would not have complete free access to unlimited amounts of air, thus it would also be at "ambient" air pressure.

The problem comes into play when the "unfiltered" side of the filter is also subject to a vacuum, but the FilterMinder's "reference" is still at "ambient". This is what is the case with the AIS. The inlet to the housing is too restrictive, and a vacuum develops (reference to "ambient") on the unfiltered side of the media, too. The sleeve above mentioned attempts to solve this problem.

What's attempting to be read is a drop ACROSS the media, which would require that the device have it's reference INSIDE the AIS box, on the "dirty" side.

If I had an AIS, I could jury-rig up something that would put the outside of the FilterMinder at the same reference as the inside of the AIS box. What the company needs to do to solve this is to figure out a way to seal it against atmospheric pressure and have a hose fitting at EACH end, allowing one to plumb it across the filter medium itself.

Pop

 

Pop - that is a brilliant analysis! Makes perfect sense to me and addresses the one remaining question I had - - - would the filter minder be equipped to do its job after all the suggested mods were made (Zoodad, dfuser, and fender sleeve)?

Of the three suggested mods, the fender sleeve appears most radical to me for the reason that it requires actually opening the side of the AIS. Not sure I want to chance buggering up the filter. I'm likely going to choose between Zoodad and dfuser mods, with leaning toward the dfuser mod right now.

Pop, thank you for an excellent description of the situation!!

 

In reality, the fender sleeve mod is likely the one that's really going to solve the problem. It's the only one that actually lets more air into the housing.

If I were doing it, however, I'd likely not cut the hole into the side of the housing with the intent of taking in air from the fender well, as that could be real dusty air at times, but look at some venting holes in the housing in another place. That would allow warmer, under-the-hood air to be drawn in (not really a good thing) instead of cooler "outside" air, but this whole project seems to be full of trade-offs.

The bottom line is that the air, after passing through the AIS filter element, is very clean, and the element, itself, is capable of filtering more-than-enough air to meet our engine's highest demands. Getting enough air AVAILABLE TO that element is the root problem that needs to be solved for the FilterMinder to accurately do its job.

Pop

 

Well said. I agree!