Watch this

[Schmoe]

check this out, may take a minute to start up, but some interesting points.
http://fordtruckworld.tenmagazines.com/tenarticle.asp?aid=2007&sid=2

This is basically a ad for True flow. But, had some intersting points. My thoughts:
1. They claim everytime you clean your cotton gauze element, you loose between 3 to 5 percent material.
2. The used 0 to 3 micron partical size dirt. 0 micron? Is it even dirt?
3. They claim dust is stopped in three dimensions. Sounds high tech, but if you look at it, it is really nothing but a pre-filter or a sponge.

 

[TomH]

IMHO, it's nothing more than another over-hyped oiled foam filter. The "test" wasn't even that impressive, and could have been easily rigged.

 

[Huhwhye]

He said he purchased the dirt for his test. If this guy is selling "snake oil" who is the dirt salesman?

 

[Brian Miller_dup1]

Those filters look identical to the UNI foam filters (red foam on black foam with a wire back). In the filter test, if I remember right UNI was one of the worst.

Brian

 

[RedWolf4000]

Tom you really think the test is rigged? He was pulling some air with that machine, he always used the same bottle of dirt, and the K&N was unopened. Unless he punched holes in the paper air filter with a pin, I dont see how this could be fixed.

Brian the Uni filter did very poorly in the test, but the Amsoil was one of the better ones, perhaps the TRUFLO is the best of the foam market.

Who knows. Personally I think to much time is spent worrying about the air filter, most of them do a fine job.

Maybe someone whos brave enough will do a long UOA with the TRUFLO and we will see.

 

[XS650]

quote:

---

Originally posted by Huhwhye:
He said he purchased the dirt for his test. If this guy is selling "snake oil" who is the dirt salesman?

---

One of many sources of calibrated dirt.

 

[RedWolf4000]

I cannot imagine an Amsoil 2-stage to be any different then a trueflow, as they both have the two different layers of foam and a cage on top.

 

[XS650]

quote:

---

Originally posted by RedWolf4000:
I cannot imagine an Amsoil 2-stage to be any different then a trueflow, as they both have the two different layers of foam and a cage on top.

---

I'm not ready to call the Truflow infomercial balatant BS. The results with the Paper and K&N type were about what more elaborate tests show.

One troubling thing is that Trueflow's website is sparse on meaningful data.

 

[RedWolf4000]

They don't have many direct replacement filters for much besides trucks and a few sports cars. What I am thinking is that an amsoil filter would perform the same in the test as the TrueFlow. Alot of testing has been done on K&N's, and we know they let more dirt in, but I would really like to see, besides this video how the paper does vs the foam (besides spicer's test comparision) If Spicers test shows the Amsoil 2-stage to filter within the middle of a few paper brands, then its obveosly as good as paper, and perhaps much better under extreme conditions as seen in that video.

Who knows? I would like to.

 

[beanoil]

I agree that foam filters will stop more dirt, with a few caveats. I've had dirt bikes for years, and my son races. IF a filter is sealed correctly in the airbox, AND oiled correctly, you will not find dirt in the intake boot before the carb. BUT, the type and amount of oil is critical for air flow, and foam breaks down rapidly when cleaned frequently. This (foam degradation) may not be a factor, as it appears that they recommend leaving the filter in until filthy (when you can't see our logo anymore). But to say they filter better, could be an accurate statement. BTW, it's a "moot" point, not a "mute" point as he said in the vid. Oiled foam flows slightly less air than gauze though, but in closed loop systems, that would be a "mute" point.

 

[KW]

I tried to watch the video, but with the guy swinging the camera around like a monkey I got sea sick and had to turn it off. The foam filters in my lawn mowers though.

 

[boxcartommie22]

i will never forget i ordered true flow filters 2 months ago and went to pick them up..they were in a package filled with oil all over the place..no way i will use this products

 

[Christopher Jefferson]

the sales man is kinda ignorant-ive never heard of a 'mute' point. of course maybe thats why ive never heard it before-im deaf! (its a MOOT point)! nice filter though and as usual its only for domestic TRUCKS! MAN!!

 

[paker]

The problem is a sized dust is poured into a filter. A person would have to drive in a dust storm every day to accumulate as much crap as went through the paper filter that size. Normal driving gets different sized dirt/dust sucked into an auto filter, not just micro size dust.

 

[paker]

The problem is a sized dust is poured into a filter. A person would have to drive in a dust storm every day to accumulate as much crap as went through the paper filter that size. Normal driving gets different sized dirt/dust sucked into an auto air filter, not just micro size dust.

 

[XS650]

quote:

---

Originally posted by paker:
The problem is a sized dust is poured into a filter. A person would have to drive in a dust storm every day to accumulate as much crap as went through the paper filter that size. Normal driving gets different sized dirt/dust sucked into an auto filter, not just micro size dust.

---

Are you voluntering to watch an air filter test that models real time dirt flow through an air filter.

Lessee here, 30,000 miles at 40 mph average speed, should only take 75o hours of you time.

The relative filtering ability he demonstrated is meaningful, even if he is marketing snake.

It showed what other tests have shown over a longer period of time, K&N filters pass several times as much fine dust as a good paper element.

 

[Jonny Z]

Some of us probably should do that to the K&N demo machine at the auto parts stores, the one that blows the ping pong ball. Grab some dirt, walk up and drop it on the filters...

See how soon you get kicked out