Uh... I disagree. The racing teams NEED POWER to win! A set of rings or even rebuilding the engine is a small price to pay for winning! They need some protection but need something that breaths well.

I think I made that point earlier that most (99.9%) of the time we drive on tar! I'm usually suckin raw ozone and not dirt.

 

I'm confused!!!
Why would a filter that flows better but filters less clog faster then one that flows less and filters more? Someone is bending the laws of physics. It is obviously picking up and holding the particles better.
I will keep my K&N filter pack.
By the way MLAUGH your pinging was probably caused by carbon on the piston (no relation to filtration). A few WOT runs will take care of that. You probably blew the carbon off with your attempts to CLEAN THINGS UP. I don't have to worry, nary a day goes by without at least one WOT run...

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Black 1997 F-150 Supercab Flairside. 4.6L with Jocobs DIS, K&N Generation II, Cat back Exhaust (my own, nice rumble). 17" Off Road wheel pkg. Lots of body mods. 4 yrs old and still turns heads...



[This message has been edited by WLF (edited 07-02-2000).]

 

I have a supercharger on my 4x and while it draws more air through the filter than stock, I don't seem to have any problems with dirt or any other foreign objects in my air box. I think I'll stick with the K&N.


97 f150 XLT 4X ex.cab sb.
Magnacharged 5.4
K&N
dual exhaust



[This message has been edited by sheen (edited 07-04-2000).]

 

WLF Sorry you must of not understood my message. The problem was determined to be because of a MAF sensor being dirty. Immediately after the cleaning the pinging stopped. Iam very well aware of all the things that can cause Pinging but this one really supprised me. This information was from my experience. So that is that.

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97 F-150 4.6 auto, 4x2, 3.55 LS, WMS Velocity tube, K&N, Dynomax Super Turbo exhaust with Echo tube.
Oh yeah, it's Oxford White with crome wheels, Legacy shell & custom grill!

 

I just switched back to a new paper filter from using the K&N for two years.Kind of experimenting I guess.Here is my theory on the two filters.The K&N filter is not shaped the same as the original equipment filter and is somewhat smaller.Compare the two side by side the end of the K&N is flat while the end of the original equpiment is round and bolbuous so as to fit perfectly in the air intake tube at the fender well. The original filter also fits better at the other end where it hooks to the main intake tube.I believe that the K&N filter media is better but the way it is designed it does not filter better.Instead of the air going thru it at the fender well(like it does with the original)it appears to be forced around it thus being less restrictive.What air does get to the filter is filtered better. With the original the incoming air goes directly thru the filter not around it.I believe the original filter the way it is designed does a better job at filtering.Now if the K&N were designed exactly like the original then it would do a better job of filtering, but it isn't. Why? Well because then they couldn't make the claim that it was less restrictive.So yes it has the ability to filter better but not the way it is designed.I think for now I will stick to good old paper.

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Dennis

 

Denaveechi:
There was a great post last year on modifying a K&N; basically you cut the plastic rounded "nose" off the stock paper filter and glue (or epoxy) it to the K&N. Theoretically this smooths out the airflow and gives better performance. And there is not real extra cost involved. I did this mod but don't know if there's any performance gain.

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'99 F150 SC, 4x2, Oxford white, flareside, 5.4, 3.55 rearend,
bodyside mouldings, Snuglid hard tonneau, K&N dropin, airbox and frsh air mods.
Duraliner drop-in (gave up on the Penda Nascar). Gibson Supertruck. Ford 2-piece bra. Catch-All floor mats. Image tail light covers. B-Quiet sound dampener in rear of cab.
No door cracks yet at 10K!!!

 

That cone idea would work great if you were still using the factory air box setup. If you use FIPK or any mod that opens it up, the cone won't help any. The air just goes straight in.
I had a '97 F-150 4.2 V-6 using the K&N. I had problems with it stalling all the time. Ford replaced the MAF sensor, oxygen sensor, etc., etc. But yet when I let up off the clutch the rpm's still came down, sputtered, and then stalled. They didn't even look at the sensors I would have looked at(throttle and IFS modulator). So my truck ended up stalling on a slick, snowy day and I had no brakes, steering, and I couldn't get it started after it stalled. I got to watch the guy just slide into me and hit me. T-boned in the middle of an intersection($3000+ damage) that I could have prevented if my truck was running. All State Farms "expert" had to say was that it was either the K&N filter or the aftermarket alarm. After I heard his explenation I put the paper filter back in and reset the computer, via unhooking the battery. It stalled even worse. It wasn't the alarm either. I had it out for a month and contacted the installers and the manufacturer and thay said it was IMPOSSIBLE for the alarm to cause it because of the way the relays work inside on the starter kill. They are in a normally at rest positon. Upon setting the alarm off, they are electrically opened.IMPOSSIBLE. Why doesn't Ford just fix there screw up of sensors from the low bid company they get theres from and fix this problem.
Mt new('97 F-150 SC) is having a ruff idle problem while in park at a stop even before I dropped in the K&N. After the visit to Ford where they told me,"no code, can't duplicate concern", I drove out of the parking lot, and at the first stop I came to it idled ruff. Let's fix this C$%P, and get to the business of making our engine run right.
Sorry for the ranting guys. Thanks for listening to me vent. I love my K&N and won't replace it. I don't drive in dusty conditions so I'm not real cocerned. Sounds to me like an Amsoil rep trying to sell a product.


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Red '97 F-150 SC 4x4 off-road, 16" rims instead of factory 17"'s(borrowed from old '97 reg cab), BFG 265/75 16 all terrain T/A, K&N filter with modified air box, Flowmaster 40 with duals out back, Expedition center console, 3" rear seat lift, after market stereo seen at HTTP://members.sounddomain.com/red97,

 

Well, there is a trick I have seen used on dirt bikes to see if the filter is sealing well, don't see why it wouldn't work on a truck. Coat the inside of the chamber (just aft of the filter) with a thin coat of grease, doesn't have to be a large spot, reassemble and drive it, pull it back apart and see if there is dust/dirt stuck to the grease. Anyone know why this wouldn't work?

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2000 Lariat Flareside Supercab, 5.4, 3.55LS, towing package, captains chairs, 6 disc cd changer, Bugflector II, Herculiner Bedliner and clear corner lenses.