You're kidding right?
I've had clean looking filters totally clogged with Mt St Helens ash and ones an inch deep in dust that were just fine.
Time for you the read the filter minder's FAQ http://www.filterminder.com/faq.asp

 

No, I'm not kidding.
When I invented this system I went along with a lot of what folks claimed where the ways to determine when a filter was dirty or not filtering efficiently etc etc etc and then I decided to do some testing.

I drove thousands of miles in and around the NW USA, and logged over 15,000 miles in the USA while using this System.
Visually the filter will take on a different look at the end closest to the turbo inlet hose. The pleats will also darken.

There was not specific mileage that correlated with the dirt in the filter. However, when I washed the filter on the 'hunch' it was dirty and did not show these signs...I had very VERY little dirty water when cleaning. I monitored the oil for months and months with lots of testing and never once did the AFE filter let in more then 6ppm of silicate.

Post a picture of that filter with an inch of dust on it. Thats gotta be something to look at.


Thanks

Scotty

 

sorry scotty but in 2004 that just don't wash.

 

That might explain why the K&N induction kit has the filterminder stock in the end of the filter. There is a hole for it at the center of the filter towards the cowl.

 

Does anyone else ever wonder if anyone else reads their posts?

 

You're forgetting the ram air effect of the Scotty II and Ram Air III. Air velocity out of the filter on a Scotty II is faster than the stocker system. As the air moves past the small opening of the filter minder, it does indeed pull down the minder, even though there is positive air pressure in the turbo inlet hose. Thats your venturi effect, and thats why the filter minder on a Scotty II and Ram Air III are completely worthless.

I'll go one step further here, and add that the factory filter minder on ANY aftermarket air system is completely worthless. The filter minder uses a spring thats calibrated for the factory airbox, ie: factory turbo inlet hose pressures. As the filter plugs, you end up with less and less pressure in the turbo inlet hose, and the filter minder draws down. But again, this will be based on the pressure in the hose from a plugged paper element. I personally clean the oil gauze elements long before this point would ever be reached. And, as a further point, if you have aftermarket fueling on your truck, your air requirements will be different than the stock filter minder is calibrated for. So, while the filter minder may indeed not be drawn down, you may be restricting airflow.

Your best indicator of a plugged filter, if you really don't want to take the time to quickly pop the airbox off the filter? EGTs. If your EGTs seem to be higher than normal for a given piece of road, there is a awful good chance that the filter is plugged.

Rod

 

Also called the reverse Monica effect.

 

I disagree totally with the filter minder being designed especially for the Dodge application, all it really is vacuum gauge. I've seen the exact same minder, missing the Dodge logo, same number calibrations on 16 cylinder gensets and many pieces of construction equipment with different engines of all horsepower.

People who say filter minders don't work just don't understand how they work.

 

What you've seen is a filter minder shaped exactly like the one in the Dodge application, but with a completely different spring in it. Read some of the 3rd Gen threads. Early 03s and 04s had their filter minders being pulled down to 30% with a completely clean filter. This was because the SPRING was the wrong one for the application. Later model trucks didn't have this problem, even though the filter minder looks identical from the outside.

When it comes to airflow on these trucks, we've spent too many hours with a manometer in hand to trust the little junk plastic filter minder.

Rod

 

infidel: I think that a filter minder can only work if it fits the application. I don't wonder about you finding the same filter minder on different engines. This does just show that there are some engines that have the same intake air pressure requirements as the stock dodge ctd.
But Rod's and Scotty's points are also valid- since the filter minder can be influenced into seeing something wrong by the venturi effect from the air passing a small pipe where the velocity of the air will create a vacuum and also the positive pressure layout of the Scotty air system I feel that the filter minder would be prone to erroneous readings.
For a modified engine you'd need a different calibration of the minder too. The point is that we usually run turbos that are too small or don't have enough pressure ratio for the application. So IMHO the filter minder could also give a false sense of security there. I second Rod's comment on EGT being a good indicator for a plugged filter. Actually the point of getting a scotty is to reduce EGTs on a bombed truck, so IMO it's valid to measure EGTs to determine if it still does it's job and to clean the filter when it doesn't.

AlpineRAM

 

So does that mean when I posted my comment about a Venturi, I was describing this effect correctly?

I've had a filter minder from a Duramax, 2nd and 3rd gen rams side by side. Yes they look the same. I will look closer to see if theres a difference in their springs.
I know this much...all three are different prices.

I'm done posting on here as my feeling is hurt.

Thanks for all the input.

Scotty

 

YOUR feelings are hurt? I gave a perfectly logically explaination as to why the Filter Minder pulls down in a Scotty II. I haven't gotten one comment. I'm starting to feel like I'm being ignored.

 

HEY RATTLE, throw that piece of junk away & just trust ROD & SCOTT, like so many of the rest of us do. Go ahead & cut that 4.5 inch hole & listen to the music. It is so funny when someone is sitting in the passenger seat & they think a 747 is about to come through the glove box on them.

 

Read my post again...it says feeling not feelings...singular and it was a joke, nothing serious about it.

Did you post something on here?

And on a serious note, what you posted does make sense but I am still puzzled as to why some folks that did put the filter minder in the turbo inlet hose or where the filter meets the turbo inlet hose reported that it did pull it down and some said it did not.
Maybe it does depend on the turbo and fueling to a point too.

Only 1/2 a feeling is hurt now.

 

1. It's already thrown away.
2. It's not a matter of trust at all. I don't have a ScottyII because at my bombing level, not much could be gained.
3. As for noise, I got plenty.