Who makes the best Air Filter for the LS1, as far perfomance and filtering ability goes.

I have heard good stuff about all brands but I am sure there has to be a winner in the pack.

Thanks.

 

AC Delco(paper filter media)..

If you want power.. and filtration..

I did dyno tests and encourage more and more of you all to do the same.. Keep your stock air filter (AC Delco) and pit it against your K&N, Holley, Accel (all 3 are cotton gauze media - rechargeable/cleanable) or even Amsoil filters(foam filter media - rechargeable/cleanable). It will still beat it on the dyno.

My tests showed 3 rwhp advantage to the paper. No filter, and aftermarket filters showed a loss of 3rwhp. With stock lid and with MTI aftermarket lid. Same difference a number of times on different dates no less. Thats why I am so confident that you will find the same results.

But my tests were also panel filter vs panel filter.

I wonder what would happen conical filter vs panel.

 

well, i have an SLP lid.
and the one owner b4 me had a k&n with the stock lid w/baffles.

when i got the SLP lid i noticed the back of the lid didnt seal totally. so i talked to someone on this board or from the local LV FBODY and he said the stock paper filters seal properly, which is true.

so, to me a proper seal is more important than a litte more air getting in.

 

i think it was psycho that told me.

 

Intresting, so the AC Delco out performs in catching dirt and air flow.

I guess people are throwing money away on the hype? You got to love marketing.

Regards,

 

Keep in mind that he compared panel filter against panel filter, as he stated in his post. No comparisons to aftermarket conical or eliptical filters were done. With that said, K&N filters are ~1% LESS efficient at filtering out dirt/dust than a stock OEM paper filter by their own admission.

 

heres a fun fact.


when you freshly oil a K&N (or any other cotton filter) it flows LESS then a clean paper filter.

meaning when you first oil up the filter, it flows less then the cheap paper replacement.


now if you leave it on the motor, even though it looks dirty, the oil has been pulled off it.... and it flows a lil better... if you compare a dirty 3,000mi K&N to a 3,000mi paper filter, the K&N wins, hands down.

downside however, is less oil makes it less efficent at trapping dirt.
also, if you over oil the filter, that oil gets sucked in.... right onto the wire of your MAF... and your MAF may not like that.... generally not a prob unless you put too much oil on, but somthign to lookout for.


also, these are the reasons that the OEMs dont use them. otherwise, you would have 100,000mi filters to match the 100k plugs, coolent, ect......

 

As for that 3K miles vs 3K miles on each.. my AC Delco was tested against the others when it had roughly 8-13K miles (the test was done on two seperate occasions.. Same test, same results)

I did my stock 13.1 @108 run with a paper filter that had 36K+ miles on it.

Yeah I hated the whole process of recharging..
Remove
Clean
Rinse
DRY (hours!)
REOIL
Check for spots (reoil if needed)
Replace

vs

Remove
Replace with new one.

 

I believe I will switch over to a AC Delco filter from now on godd information psychocabbage Like you said it is a pain to clean and re-oil the K&n's.

 

you seem to have an LT1.. what type of filter are you currently using?

I was using an SLP setup with dual cones on my LT1.. I have never tested CONICAL filters vs Paper Conical filters ( if those exist)..

 

ok, I am going to have to say the dyno runs were not reliable. There is no way a car makes less hp with no filter at all! Especially the crappy flat ones on our cars. Just a fun fact, this is the only place I have ever heard that K&N flow less then paper.

 

hmmm..

the dyno facility I used was: RSI

So I think the dyno was fine on BOTH occasions.

The no filter test just shows that while you are mentally thinking and picturing a free flowing hole you also have to figure that the paper can help control or direct the flow more efficiently. I used to think like you.. till I spent $ and tested for myself.

I dont like just buying whatever just cause. I prefer to know what I am getting and understand why it may or may not be better and then prove it.

 

Its been a long time since Ive added my 2 cents on a board. Here goes: Paper is better overall. BUT in my case with a ram air a paper filter doesnt last worth a darn. Gets dirty too fast and it does become uneconomical. Rechargeables may cost more in the beggining, may yield a few less horsepower. For me I need a cleanable filter and the Holley Powershots the only way to go. But I would take it out before going back to the dealer to avoid any possible bs. That being said hell would have to freeze over before I go to a dealer for anything but a major blowup.

 

Uh oh... I just cleaned my moroso conical filter... cleaned it nicely, let it dry for a long time. But I didnt oil it... I didnt think it would be a big deal... Is it?

 

K&N instructions say: