Interesting info on K&N filters

[Peelz]

Screw this air filter shit, I'm gonna install a 9' tall snorkel and not run a filter

You just gotta worry about sucking in birds 

  9ft!!!!!

[Bert]

Screw this air filter shit, I'm gonna install a 9' tall snorkel and not run a filter

You just gotta worry about sucking in birds 

  9ft!!!!!

Add a sail & the wind to your back 

[Troy]

Yeah but birds will easily be cleaned out, plus it will fit under all the bridges no problem

[1FST690]

Are we suppose to assume that a pleated paper is better than a gause cotton filter, goes against everything we've been told.

Coming from the 7.3 liter diesel performance world I would 100% agree with that. They had a bad time with K&N filters "dusting" the turbos. When people started using paper filters such as what comes in the Sever Duty Filter kit that ford offers the turbos were in alot better shape. Those sever duty kits that ford offers is what the government ran in all there military vehicles in service in middle east. That right there would tell you about the filtering capibility of paper vs K&N.

I agree and disagree with the statement above:

K&N filters are horible for 2 reasons in a turbo diesel application.
  1 they are only 96% efficient to 1 micron
  2 A diesel engine of say 360 cu.in. uses approcimatly 1400 CFM of air every crank revolution

Donaldson filters, also refered as the ford severe duty filters are wonderful at trapping dirt. The are horrible at airflow. They have a triangular shaped "air passages"in them and air goes into one then has to change dirrection to go into another. This is the reason they are so effiecient at trapping dirt. It really has nothing to do with filter media. Donaldson filters are not very good on an engine either due to very high EGT's that they contribute to. You can take a bone stock truck, install a pyro and change nothing else but te airfilter to a Donaldson and see a 2-300 degree increase in EGT. This is also very hard on the turbo and pistons/rings.

Probably the best filter application that is a good comprimise for a TD app. is and AFE in the synthetic dryflow filter line. They filter just over 99% down to one micron and still have very good airflow numbers.

Airfilter technology is a comprimise between air flow and filtration. It always has been and it always will be. I do also agree that an overcleaned filter is worthless as is one that is not completely dry before re-oiling

Where did you get this information? The guys running the AIS intake on the 7.3 liter diesels saw a DROP in EGT's. The AIS intake is what the safer guys would run, that did'nt want to run a full on open intake.

Sorry Kenny, I thought that the AIS used a paper filter with a foam wrap.

My information comes from doing diesel performance professionaly for the last 10 years. I was refering to the Donaldson Sever duty filter seeing a rise in EGT. I am not familiar with the AIS intake, but there are a lot of filters on the market and we sell what we feel is the best for performance, which is as I stated a compromise. That being said we sell AFE stg. II in either the standard 6ply cotton gause or the dryflow. The newest Afe's with the exception of the Powerstroke filters have an almost inclosed airbox. We live in the high desert so we have a sandy type terrain and not much in the way of mud/rain. We use an S/B intake which is slightly better than a stock airbox for our customers that live in the muddy/rainy country. I do have to say that most of our customers are one of 2 types: Heavy towers, ie: over 23k or dragracers

[preddy08]

I was'nt questioning your credibility, just wondering where you got your information.

So we agree to agree...lol

[1FST690]

I was'nt questioning your credibility, just wondering where you got your information.

So we agree to agree...lol

Yes, we agree to agree I guess re-reading what I quoted, I agreed with more than I disagreed

[Bert]

So we agree to agree...lol

That's funny stuff right there   

[preddy08]

I was'nt questioning your credibility, just wondering where you got your information.

So we agree to agree...lol

Yes, we agree to agree I guess re-reading what I quoted, I agreed with more than I disagreed

[Troy]

I'm not sure what the argument is but I 'm gonna have to disagree here.

[preddy08]

I'm not sure what the argument is but I 'm gonna have to disagree here.

I think were arguing about who is righter....


Drrr, I'm more righter than yous guys.

[Troy]

In that case, I will concur

[Krandall]

Alls I gotta say is.. don't suck no damn birds into your intakes and you won't have majore flow issues. 

[fire raptor]

I hit a flock of Doves in Baja. First about two days later the smell of decomp set it. Found one bird cooked on the radiator. Then found one between the camper shell and the truck. Then the old f350 Diesel started running like crap. Took it in for service and they found another very rotten dove up my air intake by the filter. So it happens! PS never had good luck with K&N,s. Went to foam and paper years ago.

[Peelz]

I hit a flock of Doves in Baja. First about two days later the smell of decomp set it. Found one bird cooked on the radiator. Then found one between the camper shell and the truck. Then the old f350 Diesel started running like crap. Took it in for service and they found another very rotten dove up my air intake by the filter. So it happens! PS never had good luck with K&N,s. Went to foam and paper years ago.

lol 

[Krandall]

I guess I hit a pheasant between a chick and full grown. was sittin rotted near my intake on the scion.

I ran the K&N @ silver lake this last weekend. Granted it was wet there so not much chance for dust... (and I only rode 1 day) but I checked my intake boot and it appears she held up fine.