Question about air cleaner

[68Mustang]

Just wondering if anyone has done any testing with and without an air cleaner and how it effects ET
Also any testing between paper and k&n fliters.
I have never run an air filter but i am thinking about running one just wondering how it would effect ET and wondering if the K&N fliter and the xtreme top if worth the money.

[SSDiv6]

Originally Posted by 68Mustang

Just wondering if anyone has done any testing with and without an air cleaner and how it effects ET
Also any testing between paper and k&n fliters.
I have never run an air filter but i am thinking about running one just wondering how it would effect ET and wondering if the K&N fliter and the xtreme top if worth the money.

The only way you will know is by testing. Performance is depedant on the calibration of your carburetor. I have seen cars go faster with the air cleaner installed...and other slow down. A maintained K&N filter is superior than paper due to the fact it also prevents dust and FOD of getting inside your engine, especially the cylinder walls. However, the K&N also can be more restrictive than some paper filters.

[Jeff Lee]

Agree w/ SSDiv6. I can tell you my Stocker ram-air '70 AMX did not slow at all with a 12" K&N with matching filter-charger top piece. I always ran it. There is a lot of dust in the air here in AZ and it's not worth paying for new cylinder walls, pistons, etc., for even a few hundreths in my opinion. Now that I run SS, I have a hi-rise intake and a filter is no longer an option. Wish it were...

[greg fulk]

on my Cutlass I run a Moroso 14" paper air cleaner...@ the fall classic last year I went a 12.84 with it & a 12.76 without...passes were made within a 1/2 hour of each other.

[SSDiv6]

The design of the air cleaner has a lot to do with performance. It is a known fact that the drop bases kill performance; however, due to clearance problems, many times your only choice is to run a dropped air cleaner base. Also, the K&N X-treme lid is way over rated and many engines loose power with the liod due to disruption of air flow affecting the metering system.

[mannymen]

This was found on DRR from April 7th 2008

I know that a standard 14x3" paper filter slowed my mild (low 12-sec, 850 CFM) BBC door car slightly, (.03-.04), vs no filter.

Tested a 4" tall K&N, with no added oil other than what it came with, and no change vs not having a filter. Oiled it thoroughly, and it did slow .015.

Tried a Wix P/N 42096 14x4" paper element, which fits all standard (& "cheapie") chrome air cleaners, and it ran just like no filter. I've been using them for the past 9 years.

Napa has a nearly identical one, (P/N 22096), for about half price, but tighter pleating, have not tested it in controlled manner, but did run one in a pinch.