LS1 Based Engine Tech LS1 / LS6 / LS2 / LS3 / LS7 Engine Tech

K&N Filters bad for ls1's???

Thread Tools
 
Search this Thread
 
Old Oct 2, 2004 | 08:16 PM
  #16  
Greed4Speed's Avatar
Registered User
 
Joined: Apr 2003
Posts: 4,507
From: FTW, TX
Re: K&N Filters bad for ls1's???

Originally Posted by lt1camaroman93
When i bought my ls1 it had a k&n in it which was over oiled. My maf was covered in oil and dust. I will be putting a paper filter back in.

Nothing a little TB cleaner can't fix. With the dust, make sure there isn't an opening in the system.
Old Oct 3, 2004 | 05:12 PM
  #17  
CtRw's Avatar
Registered User
 
Joined: Nov 2001
Posts: 101
From: North Dakota
Re: K&N Filters bad for ls1's???

I've noticed with k&n zero horsepower gain. On my old 305 with CFI I gained 2 mpg in town with K&ns over my papers. Anyone need a K&N for their LS1? I've got a used one that you can have for like $15-20.
Old Oct 3, 2004 | 06:20 PM
  #18  
TheV6Bird's Avatar
Registered User
 
Joined: May 2001
Posts: 1,040
From: New Haven, CT
Re: K&N Filters bad for ls1's???

Car Craft recently did a test with K&Ns vs. paper filters.

The K&Ns did a LOT better, but then again it was on Gen I SBC with a carb.
Old Oct 3, 2004 | 06:32 PM
  #19  
95GRNZ's Avatar
Registered User
 
Joined: Dec 1999
Posts: 2,779
From: Denton, TX
Re: K&N Filters bad for ls1's???

Damn!!! This long thread about K&N vs. paper and no post from Psychocabbage.

TS
Old Oct 3, 2004 | 07:30 PM
  #20  
LapeerZ28's Avatar
Registered User
 
Joined: Apr 2002
Posts: 68
From: Lapeer, Mi, USA
Re: K&N Filters bad for ls1's???

Originally Posted by 95GRNZ
Damn!!! This long thread about K&N vs. paper and no post from Psychocabbage.

TS
Maybe tired from quoting the same results, over and over and over and over?
Old Oct 3, 2004 | 10:47 PM
  #21  
LT-14me's Avatar
Registered User
 
Joined: Apr 2003
Posts: 799
From: Mass
Re: K&N Filters bad for ls1's???

where is the MAF? I have a k&n it came with the car. I havent oiled it yet. I prob should since i have gone about 25k since oiling the damn thing. Just never wanted to mess it up. I think i am just gunna go back to paper. I have a SLP Lid, the MAF is right behind it right?
Old Oct 4, 2004 | 12:55 AM
  #22  
AL SS590 M6's Avatar
Moderator
 
Joined: Jul 1998
Posts: 6,247
From: Charlotte,MI USA
Re: K&N Filters bad for ls1's???

Originally Posted by LT-14me
where is the MAF? I have a k&n it came with the car. I havent oiled it yet. I prob should since i have gone about 25k since oiling the damn thing. Just never wanted to mess it up. I think i am just gunna go back to paper. I have a SLP Lid, the MAF is right behind it right?
Yep
Old Oct 5, 2004 | 01:03 PM
  #23  
psychocabbage's Avatar
Registered User
 
Joined: Aug 2000
Posts: 1,901
From: Houston, Tx USA
Re: K&N Filters bad for ls1's???

BWAHAHAHAHAHA

Actually I have been playing topshift.com and havent been scanning posts as often as I usually do.. Yeah.. I know.. I cant leave my Anti K&N Campaign without some support.


Its been said that you could find just as many pros as you could cons for just about any item you want to test. I personally was tired of wondering. I decided to test it myself. My results appeased me. I have a K&N filter thats sitting in a box. I dont touch it anymore. My tests on the dyno showed me that it lost me 3rwhp. As did No filter. The tests were done in as much of a controlled environment as I could get. I rented the dyno for an hour. I then repeated the test a couple weeks later with the same results.
Old Oct 5, 2004 | 03:34 PM
  #24  
angel71rs's Avatar
Registered User
 
Joined: Jun 2001
Posts: 1,209
From: TX
Re: K&N Filters bad for ls1's???

Originally Posted by psychocabbage
My tests on the dyno showed me that it lost me 3rwhp. As did No filter.
Wonder why.

Obviously there is a difference that hurts HP with K&N on these engines, even thought K&Ns are proven HP producers in carb applications. I've tested that myself on different vehicles at the track over the years.

Is it because of better quality, if reduced, flow with a paper filter vs K&N or no filter at all? Might it have to do with resonance characteristics, as in an engine making more HP with a little back pressure than with none?

A reusable filter is mandatory out here in dusty West Texas, even if they do lose HP. So for me, the questions are moot.
Old Oct 5, 2004 | 05:47 PM
  #25  
Morginie's Avatar
Registered User
 
Joined: Jul 2004
Posts: 188
Re: K&N Filters bad for ls1's???

I know that K@N filters do increase airflow, from my own tests and from a test my uncle did with one. So what is it in the K@N filter that would be a hp reducer??
Old Oct 9, 2004 | 01:04 AM
  #26  
JimMueller's Avatar
Registered User
 
Joined: Feb 2000
Posts: 607
From: Casselberry FL USA
Re: K&N Filters bad for ls1's???

Originally Posted by Morginie
We did an airflow test with the usual paper filter that people use and a K@N. This is no lie but the K@N aloud way more air flow. That much increased airflow should alow like a couple more HP.

Was the K&N filter properly oiled during the test? All the K&N displays I've seen with the little ball in a tube had dry elements.
Old Oct 9, 2004 | 01:34 AM
  #27  
WiseguyZ28's Avatar
Registered User
 
Joined: Jul 2004
Posts: 156
From: Bartlett, IL
Re: K&N Filters bad for ls1's???

I have a HolleyPowershot filter like it says in the sig, do those clean as well as the paper filters. I know the K&N's do not seal as well which was my reason for goin Holley. From what i heard a while back, K&N decided to use the same filter for us as they do for some volkswagon that uses the same size filter except our filter comes with a seal that u put around it to make up for it which probably doesn't work as well as they would wish.

So is the HolleyPowershot a good pick compared to the stock filter, i don't really care about the 1-2 hp that i won't really feel, i'd rather have the better filtering. Should i go back to my paper filter, i think its still pretty clean if i remember right.
Old Oct 9, 2004 | 07:52 AM
  #28  
danziger's Avatar
Registered User
 
Joined: May 2000
Posts: 501
From: Chesapeake, VA USA
Re: K&N Filters bad for ls1's???

I also ditched my K&N when I noticed that sand and grit were getting past it. I've gone back to paper and am quite happy. The paper filter versus NO filter was worth 1-2rwhp on the dyno, so the K7N just isn't worth the drama. I still have a K&N conical on my 5.0 because they seem to work much better than the panel filters...
Old Oct 10, 2004 | 05:54 PM
  #29  
Greed4Speed's Avatar
Registered User
 
Joined: Apr 2003
Posts: 4,507
From: FTW, TX
Re: K&N Filters bad for ls1's???

Sounds like the filter wasn't sealing properly. I ran a foam strip to seal mine.
Old Oct 11, 2004 | 02:34 PM
  #30  
hsyr's Avatar
Registered User
 
Joined: May 2002
Posts: 1,025
From: Saskatchewan, Canada
Re: K&N Filters bad for ls1's???

Most 5-20 HP gains from the K&N (or similar) filters come from the whole CAI kit. The new plastic CAI allows more air in, not the filter itself.



All times are GMT -5. The time now is 11:29 PM.