ISO 5011 air filter test...

[Boostwerks.com]

http://duramax-diesel.com/spicer/index.htm

Re-affirms what I've said about K&N filters for a long time. To summarize the findings: stick with OEM paper if you'd like the motor to last.

Enjoi.
Bryson

PS. I should have 4.0l turbo manifold updates to pass along real soon. Buying a house slows progress just a little. Stay tuned. :confused1

 

[Buzzstrike]

WOW.

That was some nice tasty, clean cut empirical data.


But it just goes to show you. Life is a compromise.

 

[Hellbent]

very well laid out, and informative. thanks.

 

[gradon]

I swapped out the K&N filter for an Amsoil eaau3090 a while ago. I definitely didn't like the fine dust build-up and regularly having to clean the intake and tb. That test was done years ago and the amsoil filter then was an oiled gauze type like k&n, not the newer nano-fiber dry medium.

 

[Boostwerks.com]

I swapped out the K&N filter for an Amsoil eaau3090 a while ago. I definitely didn't like the fine dust build-up and regularly having to clean the intake and tb. That test was done years ago and the amsoil filter then was an oiled gauze type like k&n, not the newer nano-fiber dry medium.

Indeed. Although I'd be willing to bet a kidney that the same rule applies. When the OA size of the filter is the same, Flow and Filtration are inverse of each other when comparing different filter medias. Definetly not rocket science lol.

 

[CherBear]

Indeed. Although I'd be willing to bet a kidney that the same rule applies. When the OA size of the filter is the same, Flow and Filtration are inverse of each other when comparing different filter medias. Definetly not rocket science lol.

Amen, I agree completely there. The key word is "media". The "flow more, filter less" rule applies only when you have filters of different media, but same surface area.

More surface area means slower velocity moving through the filter, meaning less resistance to flow.

 

[Talyn]

PS. I should have 4.0l turbo manifold updates to pass along real soon.

Where have I heard that before? :wow:

 

[Boostwerks.com]

Where have I heard that before? :wow:

lol. Well it's built and in testing if that matters. I figured I'd wait to post any details since people tend to freak out if it's not complete (hence the hint :yelclap

More hints to come soon

 

[Boostwerks.com]

Amen, I agree completely there. The key word is "media". The "flow more, filter less" rule applies only when you have filters of different media, but same surface area.

More surface area means slower velocity moving through the filter, meaning less resistance to flow.

agreed.

The problem lies around the fact that most people utilize replacement drop in filters which obviously have roughtly the same surface area, instead of trying to fit the largest paper cone filter they can.

 

[CherBear]

agreed.

The problem lies around the fact that most people utilize replacement drop in filters which obviously have roughtly the same surface area, instead of trying to fit the largest paper cone filter they can.

Yes that will always have the problem of flow vs filtration because you are limited by the size of the air box.
I run a KN cone filter from a mustang's CAI. Its pretty beefy. When I get into the rough stuff I put a hacked up version of the stock air box back on to try to keep it clean.