Dry Cone Filters

[904Bronco]

K & N was the go to filter in the late 80's with the Fox Body mustangs, then everyone found out what happens when they get over oiled... MAF gets oily and the rig runs funny. (And I don't believe they filtered much to begin with...)

So people migrated to dry cone filters. I have been using the Amsoil Au3570 cone filter for a few years and I just went to buy another one. Only to find that Amsoil is discontinuing this line of filters. I have tried to buy other Amsoil filters that are similar in size to the 3570, but while listed on the website as available, they are deleted from the order as not available in my area.

I am a preferred customer and I have reached out to the guy who signed me up, and he has put out a request in their system to see if anyone has any filters on their shelf. Nothing yet...

Any recomendations for other Brands of dry cone filters that have worked for you?

Thx.

 

[1970 Palmer]

It might be a part that does not have a CARB certified number. You (and I) live in a state that restricts lots of auto parts and paint materials due to air quality standards.

I'd bet it's available to your Reno, NV. friend?

Just a guess.

John

 

[Broncobowsher]

Tried an AEM dryflow when they first came out. Avoid the oiled MAF issues. Wasn't completely satisfied, there was some very fine dust getting into the intake.

My daily driver still runs factory Nissan filters. they have a slightly tacky feel to them. maybe some rosin on the fibers. Same super fine AZ dust but still super clean inside after 10 years. So I know dry filters can clean good.

Donaldson makes some really good filters, but don't think they have any open element cone filters. The do have radial seal in a canister filters I have used before. Very much like the factory filter on my Kubota and that is designed to run in dust.

Ford's severe service air filter for the 7.3 (and I think it turned into the standard filter on the later diesels) is the Donaldson powercore. It is a giant brick of an air filter. They make generic aftermarket filters as well.

So there are good options out there. I just don't know of any cone versions.

 

[DirtDonk]

Sounds like time to modify our air boxes to fit a different size/shape/style of filter.
Wouldn't hurt my feelings a bit either.;D

Paul

 

[toddz69]

K & N was the go to filter in the late 80's with the Fox Body mustangs, then everyone found out what happens when they get over oiled... MAF gets oily and the rig runs funny. (And I don't believe they filtered much to begin with...)

So people migrated to dry cone filters. I have been using the Amsoil Au3570 cone filter for a few years and I just went to buy another one. Only to find that Amsoil is discontinuing this line of filters. I have tried to buy other Amsoil filters that are similar in size to the 3570, but while listed on the website as available, they are deleted from the order as not available in my area.

I am a preferred customer and I have reached out to the guy who signed me up, and he has put out a request in their system to see if anyone has any filters on their shelf. Nothing yet...

Any recomendations for other Brands of dry cone filters that have worked for you?

Thx.

I thought I had heard they were discontinuing them - very frustrating. I'm on my second one (I think it's that same PN you use) and it's still doing a good job filtering per my latest Blackstone oil analysis report but I like to have spares. I used an AEM cone filter for awhile as my first dry filter on my engine and it seemed to work fine. I eventually want to convert to a custom air box with an OEM panel filter but it's always one of those 'round-to-it' kind of things that I never seem to get started. Real estate is so tight on our EFI trucks when we don't want to move batteries, etc.

Todd Z.

 

[Timmy390]

AEM here. Had it on for 2 plus years. Just had it off a couple months ago to clean it. I looked in the intake tubes for any fine dust as that's always been the issue per what I've read. Looked nice and clean. That said clearly conditions are different in different places......

Tim

 

[AZ69EB]

You can also invest in a pre-filter or some people calls it a sand sock. This will stop most of the fine dust particles from reaching the filter. It will even keep water out of the filter within reason. I used the K&N wet filter and their filter wrap listed below.

The K&N PreCharger® filter wrap is specially designed to extend the service interval of your K&N Filtercharger filter when used in very dusty conditions. They are made from durable polyester material containing a uniform weave. The PreCharger will stop small dirt particles with minimal restriction to the airflow of the filter.

It works great. I would clean the pre-filter sock and not have to clean the K&n filter after running our dry, dusty trails in Arizona. Good luck

 

[904Bronco]

It might be a part that does not have a CARB certified number. You (and I) live in a state that restricts lots of auto parts and paint materials due to air quality standards.

I'd bet it's available to your Reno, NV. friend?

Just a guess.

John

You know John, I didn't think of that... But entirely possible... Given Our Special State and it's rules.

 

[MarsChariot]

You can also invest in a pre-filter or some people calls it a sand sock. This will stop most of the fine dust particles from reaching the filter. It will even keep water out of the filter within reason. I used the K&N wet filter and their filter wrap listed below.

That is what I am using. Seems to be a big help. That and using the minimum or even less oil on the filter.

 

[nvrstuk]

I use a pre screen sock. Water doesn't flow through it easily and since I don't have inner fenders and mine pretty much sits directly above/behind my DS headlight the pre-sock is extremely beneficial.

The sand, dirt, snow lands on it and just slides off. It's secured tightly at the base to keep it sealed so the bucketful of crud that lands on it every trip can't slip into the "V" grooves and fill them.

 

[gr8scott]

K&N came out with synthetic dry filters. I use one on my modern car with a pre-filter made by Outerwears, they fit so much better than the ones from K&N.

https://www.knfilters.com/blog/kn-black-synthetic-universal-cone-air-filters

 

[toddz69]

K&N came out with synthetic dry filters. I use one on my modern car with a pre-filter made by Outerwears, they fit so much better than the ones from K&N.

https://www.knfilters.com/blog/kn-black-synthetic-universal-cone-air-filters

K&N came out with dry filters because they bought AEM about 10 years ago. AEM had developed the Dryflow dry filter prior to the acquisition and according to independent tests done at SWRI, it was a very good filter. The filter report used be online but after K&N bought them, it disappeared or was very hard to find - probably because it made the K&N oiled filters look bad! The original gray Dryflows have a PN that ends in -BF and the newer red ones (no idea on their efficiency) end in -DK. Information on various sizes available is really hard to find online. I've always assumed that although dry filters go against all the core selling points that K&N has preached for many years, they figured they'd better join the dry filter market as it was expanding fast in light of the downfall of the oiled filters - so they bought AEM.

I noted above that I used an AEM filter as my first dry filter but that's incorrect - it was actually an aFE Magnum Flow Pro Dry S filter and it fit as well as the K&N and Amsoil cone filters. I'm not sure what the filtering efficiency of them are but it seemed to work well in the time that I had it on my truck.

Todd Z.

 

[DirtDonk]

Be interesting to find that paper. If it was on the internet once, it's probably archived and can still be found with the right searching. I forget how it goes, but that's how we still have all of Ryan McCormick's "Old Ford Fuel Injection" and "fuel injection tech" pages, and his other information as well.

Might be worth a search.

Paul

 

[toddz69]

Found it:

http://www.autohifidiszkont.hu/bmw-tuning.hu/aemszuroteszt.pdf

And some discussion on the conclusions:

http://blog.consumerpla.net/2011/03/best-air-filters-swri-2007-tests.html

And a bit more (although more of a PR piece than any true scientific stuff):

http://www.trucktrend.com/features/0512st-aem-dryflow-filter

Todd Z.

 

[904Bronco]

Couple of PM shares

aFe Dry S #21-90069M (two of them) Similar dementions to the Amsoil

Airad #Aid-701-451 (Summit number) a little bigger than Amsoil

 

[pbwcr]

904, Order from Amsoil using an address for a buddy that lives in another state and see what happens.
Otherwise why not order the Amsoil filters from Amazon or Ebay? They both say they are selling Amsoil nano filters.
PaulW
==== =

K & N was the go to filter in the late 80's with the Fox Body mustangs, then everyone found out what happens when they get over oiled... MAF gets oily and the rig runs funny. (And I don't believe they filtered much to begin with...)

So people migrated to dry cone filters. I have been using the Amsoil Au3570 cone filter for a few years and I just went to buy another one. Only to find that Amsoil is discontinuing this line of filters. I have tried to buy other Amsoil filters that are similar in size to the 3570, but while listed on the website as available, they are deleted from the order as not available in my area.

I am a preferred customer and I have reached out to the guy who signed me up, and he has put out a request in their system to see if anyone has any filters on their shelf. Nothing yet...

Any recomendations for other Brands of dry cone filters that have worked for you?

Thx.

 

[toddz69]

904, Order from Amsoil using an address for a buddy that lives in another state and see what happens.
Otherwise why not order the Amsoil filters from Amazon or Ebay? They both say they are selling Amsoil nano filters.
PaulW
==== =

Amsoil no longer lists the PN Doug is looking for on their website. I don't see them on Amazon or Ebay either, but then again my google-fu isn't as good as many other folks. If someone else finds them for sale, please let us know where!

Todd Z.

 

[TNcowboy]

You can try here, they have the 3570 listed http://www.syntheticwarehouse.com/nanofiber_induction_cone_air_filters.htm

Amsoil has the 3550 listed in the pull down menu which appears to have the same specs just 5" instead of 7"
https://www.amsoil.com/p/amsoil-ea-universal-air-induction-filters-eaau/?zo=510227

 

[BanditBronco]

I have been using R2C Filters for 5 years now and have been pretty happy. I don't have any factual analysis on how they work, but they have a bunch of cone style lengths/widths, I am sure you can find one that will work for you. I stumbled across them looking for an offroad worthy filter set up. They come from the offroad racing world back when VW's ran two large filters on the carbs. I run one with a sock over it just to elongate cleaning/replacement time frames.

I usually order them from Kartek.com

 

[904Bronco]

904, Order from Amsoil using an address for a buddy that lives in another state and see what happens.
Otherwise why not order the Amsoil filters from Amazon or Ebay? They both say they are selling Amsoil nano filters.
PaulW
==== =

I have someone checking on the 3555 availability in Idaho today