I see a lot of people here asking for different intakes and air boxes.... That is not the test he is after... He is testing different media to see how they perform on an the same car which is the only way to perform the test..

Dyno testing is reat for testing HP, but has nothing to do with how the filter removes particulate from the air stream..

I have a filter tester that will check flow and particulate but as it sits, It requires pieces of media (cut off).. It is in storage and not sure what condition it is in, haven't used it in years, but if I can find it and adapt it to test a specific cone style filter, that would be a test.

Need to remember that there is usually a compromise for flow and that is particulate getting into the engine which not only contaminates the oil but shortens engine life.

Will be in touch Chris.

Doc

 

^+1 I totally agree, just throwing on different filters on a car during dyno runs is a 4 of a 10 scale type of test. the best test is a controlled pressurized system where you can measure pressure differential from in/out, air flow and how small micron particles the filter traps. Not that easy of a test to set up for sure.
I use K&N drop in filter and even if it was used on this dyno run test and came in 6th place. the test wouldn't sway me into chaning intakes.

 

The reason I am performing this test is because over and over and over again I read "Which air filter will give me the most HP?" on this board (and many others). To some people an extra 5whp means a lot; that is the person who this test is meant to satisfy.

 

Thank you, Doc, you are exactly right. This comparison will be based mainly on how each cone filter compares to other cone filters.

I'm starting to think now that I may use my car in the test since its decently modded on the stock turbo with most the available bolt-ons and will provide a better real-world test than a stock car would since most of us are modded. I also think the fact I flow a lot more air than a stock car is great for this test since it'll be more demanding from each filter. At stock airflow levels its possible all the filters supply adequate flow but the increased airflow may single a few out as the best/worst.

I'm now extremely interested in these Amsoil air filters and am really hoping to get my hands on one for the test!

Here is what its looking like for the test at this point (assuming I'm able to get them all):
*Buschur (old style)
*Vibrant (same as new style Buschur)
*Apexi
Injen
K&N
Perrin
Amsoil
HKS

* indicates I already have them in my possession

 

Can you also try how much HP gain without any filter?

 

I'll think about it, but its doubtful b/c it would be just my luck that I'd suck in some bug that would make a mess all over my MAS.

 

Sure wouldn't be using my car for a "No Filter" Run for exactly that reason... Unless it is an expendable engine, nobody would do such a thing..

I will work on the AMSOIL filter for you..

Doc

 

I would like to AEM as well it is also a popular filter.

 

subscribing

 

subscribed. Any eta on when this test will take place?

 

I am all in favor of this test and even for it to include the filtration of each, BUT:
I think it is absolutely crucial that the filters all be brand-new and unused. Reusable filters must not have been through a cleaning cycle. This is because the filtration and flow characteristics of a filter can change significantly depending on how new or used it is, how it was re-oiled, etc.
In addition, the stock panel filter should be brand new in order to show true gains and not "hey suprise a brand new mesh screen made gains over a filthy, clogged, old, thick, and tightly ribbed stock panel filter!"
And I agree that for this test to represent as close to actual driving conditions as possible, all pulls must be done on the same day, at as similar temps as possible (ambient and in the car), with the hood closed. Yes, I know what's almost impossible, and will make it a LONG day, but at least strive for that.
The ECU should have a stock tune or be reflashed to stock, and AFRs should be logged as well. Tuning to optimize each filter is out of the question of course. If a filter changes the AFR, so be it.

If this seems unrealistic, then perhaps some manufacturer or vendors who have enough integrity will offer to donate or lend a filter for the cause.

 

+1 for testing the K&N drop in filter when you do the stock air box baseline run.

 

ok, very good. ALl that you are missing are:

K&N drop in (very popular)
AEM carb legal intake.

 

"Never ever buy a cheap air filter..."

http://www.youtube.com/watch?v=boSVfCrfx1Y

 

LMAO quoted for truf :

"Never, ever buy a cheap air filter, this is what happens...you break SH*T"