K&N Drop in filter

[KingKole02]

Dang thats some good info. Now to find some road to do it.

[cruisergt]

Why do you disconnect the battery when changing the air filter? Also how often should the K&N be cleaned and oiled.

[Mean Green]

quote:Originally posted by cruisergt

Why do you disconnect the battery when changing the air filter? Also how often should the K&N be cleaned and oiled.

Because the K&N allows more air you disconnect the batterry so the computer will recognize this.....I cleaned the K&N filter in my '01 after 20,000 miles. It really depends on where you drive, what conditions you drive in. I look at the K&N filters on the '01 and the GT after every oil change to see their condition.

[bobs turbo pt]

"long enough to screw up the radio" very true

[Rolo]

quote:Originally posted by Mean Green
The other silencer is part of the snorkel on the right at the bottom of the box. If you take it out and cut it flush with the inside of the box you will still have use of the snorkel to bring in cold air from the fenderwell but not have the silencer part that you cut off.

The baffle is under the clam-shell cuff and it is inside and outside. In the pic below, the outside portion is the shiny part, the remainder is inside. I just masked the holes off with electrical tape to eliminate turbulence.



I wonder if cutting off, at a 30° angle, the long part that juts inside would help airflow. I wonder if leaving the snorkel off for a larger intake hole would be better.

[CHROMEDCRUISER]

Does disconnecting the battery really make a difference... I installed a drop-in K&N and removed the white silencer. I seem to feel more power, and hear more noise. Does removing the lower snorkel add even more power and growl?

[Sci-Fi]

quote:Originally posted by CHROMEDCRUISER

Does disconnecting the battery really make a difference... I installed a drop-in K&N and removed the white silencer. I seem to feel more power, and hear more noise. Does removing the lower snorkel add even more power and growl?

Technically, you are resetting the computer back to baseline settings. The computer will "relearn" your driving preferences and take into account any new mods. Besides doing it after engine/exhaust mods, many disconnect their battery just before a trip or periodically to get the "like-new" performance back. It's more noticible if you own an automatic transmission. Some say if you don't disconnect the battery or go to the dealer to have them reset the computer, it will take approx 200 miles before the computer adjusts. Just FYI: believe you get up to 50 battery disconnects before you get an error code (P1684?) or is it battery disconnected within the last 50 starts?

[flashbk2]

Sci-fi it's the later you get 1684 when it has been disconnected .

[phatdad]

I think u will retain radio stations and clock when batt is unhooked unless u step on the brake pedal this acts as a bleed on any left battery power.

[PianT]

I put in the drop in from K&N and will disconnect the bat to run the quick learn.

I know there has been a lot of discussion about the rechargeable/cleanable filters over OEM paper, this has me a bit worried as I do not want to go through a rebuild too early,

I found this on the web regarding K&N filters:

"John: I was responsible for evaluating re-usable air filters for a major construction/mining company that had hundreds of vehicles ranging from large earthmovers to pick-up trucks and salesmen's cars. This study was embarked upon due to the fact that we were spending upwards of $30,000 a MONTH on paper air filters. Using them one time then throwing them away.. I initiated the study in that I was convinced that a K&N type filter or oiled foam would save us many dollars per year in filter savings, man hour savings, and of course engines as these would filter dirt better than paper. (yes, I had read the K&N ads and was a believer)

Representative test units were chosen to give us a broad spectrum from cars right through large front end loaders. With each unit we had a long history of oil analysis records so that changes would be trackable.

Unfortunately, for me, every single unit having alternative re-usable air cleaners showed an immediate large jump in silicon (dirt) levels with corresponding major increases in wear metals. In one extreme case, a unit with a primary and secondary air cleaner, the secondary (small paper element) clogged before even one day's test run could be completed. This particular unit had a Cummins V-12 engine that had paper/paper one bank and K&N/paper on the other bank; two completely independent induction systems. The conditions were EXACTLY duplicated for each bank yet the K&N allowed so much dirt to pass through that the small filter became clogged before lunch. The same outcome occurred with oiled foams on this unit.

We discontinued the tests on the large pieces almost immediately but continued with service trucks, foremen's vehicles, and my own company car. Analysis results continued showing markedly increased wear rates for all the vehicles, mine included. Test concluded, switched back to paper/glass and all vehicles showed reduction back to near original levels of both wear metals and dirt. I continued with the K&N on my company car out of stubbornness and at 85,000 miles the Chevy 305 V-8 wheezed its last breath. The top end was sanded badly; bottom end was just fine. End of test.

I must stress that EVERYONE involved in this test was hoping that alternative filters would work as everyone was sick about pulling out a perfectly good $85 air cleaner and throwing 4 of them away each week per machine...

So, I strongly suggest that depending upon an individual's long term plan for their vehicles they simply run an oil analysis at least once to see that the K&N or whatever alternative air filter is indeed working IN THAT APPLICATION... It depends on a person's priorities. If you want performance then indeed the K&N is the way to go but at what cost???

And no, I do not work for a paper or glass air filter manufacturing company nor do I have any affiliation with anything directly or indirectly that could benefit George Morrison as a result.."

[:0]