Building a better BHAF...

[Gary - K7GLD]

Take your BHAF off, and pinch the thickness of the total filter media, from the outside of the filter to the inside. It is about 2 or 2. 5 inches. That is a lot of paper fluff to pass through. I am basing this on my Fleetguard AH19037.

Well JEEZE - that's because of the *accordion pleating* - which in turn allows lots MORE total surface area than with a similar filter with LESS depth of folds - unfold the pleats in a typical BHAF vs something like a similar dimension K&N, and see which one has more total surface area. This can be VERY important where best filtration/airflow/element life is the goal with a filter such as the BHAF types in common use.



And NO, making a "1 foot" fold does NOT equate to a *filter thickness* of 12 inches - it's only the DEPTH of FOLD of the filter media. All things being equal, greater depth of fold delivers more surface area, and longer filter media life with lower restriction in dirty atmospheres.



There may well be performance benefits of the setup pictured, and it might be a great one - but the referred to "filter depth" sure isn't one of them - all that tells us is that filter has LESS surface area than a typical BHAF...

 

[Duluth Diesel]

I'm pickin' up what you're puttin' down, Gary. The filter media on the new Amsoil filter is 0. 125 inch thick, but the folds to increase surface area are about 5/8 inch top of rise to bottom of trough. But like I said before, the conventional BHAF needs that much surface area to make up for the inferior flow characteristics of paper. This is just my theory. But assuming that the Donaldson filter media flows better per square inch that cellulose per square inch, the new Amsoil filter doesn't need to be that huge and doesn't require the same surface area. Just a thought. I'm as new to this filter as everyone else is, but I'll be running it on my truck.

 

[Gary - K7GLD]

The Donaldson sure looks interesting - hope they can come up with something for our applications...



I'm about to try one of their similar oil filters on my truck next oil change.

 

[Texas Diesel]

Before I plunk down any money I need to see some dyno runs, oil analysis checking silicon levels in a dirty environment and how they hold up to repeated cleanings. Not interested in manufacturer claims either.



Thanks for bringing this product to the forefront, certainly worth watching and see how it does over time.

 

[Duluth Diesel]

I hear ya, Texas. I think the Donaldson Endurance media has proven itself in other industries for filtration efficiency, so I don't think we'll have problems with oil analysis. But I agree, dyno runs would be good. Maybe I'll bring some of these filters to our annual Dyno meet this fall and try to recruit volunteers for testing. Also, I am working on making up a dual filter setup. These filters are compact enough that I should be able to cram two of them under the hood. I'm going to get some nice clear schedule 40 PVC and see what I can whip up this weekend. This is all about exploring new options and seeing what we all think. At this point, based on what I know about nanofiber technology and what people trying the filter have said, this is definately a good filter option for people who want reusable filters without oil hassles. For guys with huge twins, we'll have to see if this filter can move enough air to keep up.

 

[Texas Diesel]

Be sure to post pics if you get a twin filter setup working. This nanofiber sounds good especially for the 3rd gen guys who are short on space.





Reuesable with out oil? Pinch me, I must be dreaming A dream come true

 

[Duluth Diesel]

Yep, reusable with no wet washing and no oil. Just dial down your air compressor nozzle to 15 or 20 psi (as per Donaldson instrucions) and blow the filter clean from the inside (clean side) out. That's it. No waiting for it to dry and then applying oil and waiting more. Just blow and go. :-laf

 

[justinp20012500]

Yep, reusable with no wet washing and no oil. Just dial down your air compressor nozzle to 15 or 20 psi (as per Donaldson instrucions) and blow the filter clean from the inside (clean side) out. That's it. No waiting for it to dry and then applying oil and waiting more. Just blow and go. :-laf

I sent you a PM in regards to price.



I am ready to replace my 14" long AFE with something else.

 

[CTD12V]

Honestly, with my mods, I really don't need something that flows more than a BHAF. However, the fact that the Amsoil isn't a throw-away is important to me, and is a significant advantage to me.

Yep, and I have NO mods . . . yet. Just keeping an eye to the future.



So, as small as this thing is, what's it supposed to be called--SHAF (Small Honking Air Filter)? :-laf

 

[DDT]

Me to. I am tried of a new stocker every 5K miles. Does this one use stock box or what. need to pm me$

 

[Duluth Diesel]

Me to. I am tried of a new stocker every 5K miles. Does this one use stock box or what. need to pm me$

This filter does not use the stock air box, and I haven't tried it on a 3rd gen truck yet. If your truck has a mass air flow sensor, that will have to be retained and used with this new filter. On the 2nd gen trucks, the factory air hose just clamps to the filter flange after inserting a PVC pipe union into the filter flange to give it rigidity. That is how we're running them on these truck, and it seems to work awesome. If you have a mass air flow sensor, you'll have to get creative, but it shouldn't be too much of a problem.

 

[JCutter]

I know it might be a little pita but could you post a pic of the pvc pipeing in a picture set up, like a diagram for the 2nd gens. Sorry but im more of a visual kind of guy, booby bar, booby bar, booby bar. :-laf



Jeremie

 

[Matt400]

Just to clarify. . The sensor on the 3rd gens is not a mass air flow, those are used on gas injected vehicles. The sensor is a combination intake air temp and atmosphere pressure sensor.

 

[Duluth Diesel]

Ah, thank's Matt. I was misinformed while looking under the hood of an '05 recently. I sit corrected. :-laf

 

[Duluth Diesel]

Twins????

OK, here's a new spin on this. I took two eaau4560 filters today and mounted them in using a 4-inch 'Y" pipe. It is a pretty tight fit, and I think I'd like to find a more compact Y pipe, but it should move some air.

 

[TurboTweaker]

looking good chuck, next time put the seams down



The Fat Kid

Andy

 

[Duluth Diesel]

looking good chuck, next time put the seams down



The Fat Kid

Andy

Yeah yeah yeah, I installed it in the rain with my leatherman, so I wasn't paying attention to that. I'll fix it. There is always a critic somewhere. :-laf

 

[Matt400]

I took two eaau4560 filters today and mounted them in using a 4-inch 'Y" pipe.

I knew someone would try that! The twin elements lend a more high performance look than the SHAF as CTD12V

stated :-laf :-laf

 

[Billy Diesel]

I know it might be a little pita but could you post a pic of the pvc pipeing in a picture set up, like a diagram for the 2nd gens. Sorry but im more of a visual kind of guy, booby bar, booby bar, booby bar. :-laf



Jeremie

I will try to get a pic this weekend if Chuck doesn't before then. Time permitting, I would like to rig up a heat shield / support combo.



Later,

Will

 

[CTD12V]

Heh, heh, that's a pretty cool setup, Duluth Diesel. Now all you need is some black paint on that Y-Pipe.