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General Category >> Rubber Side Down! >> KnN Air Filter
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Message started by mo.goad on 07/09/08 at 12:23:37

Title: KnN Air Filter
Post by mo.goad on 07/09/08 at 12:23:37

I have a '06 S40 fixing to change the Air Filter to a KnN. A good deal for 40 bucks from a Suzuki dealership ( negotiating skills are getting better! ) but just wondering will there be a noticeable difference in power with this change alone? Seems I've read in some other topic where there could be such a difference where a carb jet change may even be required, I definitely hope not! Any comments would be appreciated!

Thanks
Ken

Title: Re: KnN Air Filter
Post by 2000Savage on 07/09/08 at 12:39:43

i put a K&N on mine with a HD Sporty pipe with no re-jetting but the carb did need to be adjusted a bit (mechanic did it)

Title: Re: KnN Air Filter
Post by mo.goad on 07/09/08 at 12:46:16

Ok, maybe I should have mentioned my'06 is strictly stock before this KnN filter change in 1 more week. Forgot, I did take the Brass Plug out of the "Idler Jet"? to adjust it to 1 and a half turn out.

Title: Re: KnN Air Filter
Post by bill67 on 07/09/08 at 12:55:39

I've tried KN filters in cars and motorcycle and really couldn't see any difference

Title: Re: KnN Air Filter
Post by Gort on 07/09/08 at 15:52:38

There have been lab tests on K&N filters and the results were that although they let in more air, they also let in more dirt than a factory filter. The articles say that vehicle manufacturers would have used a performance inhancing design like the K&N and its numerous clones in order to achieve better mileage and performance, but they don't because these designs necessarily allow more particulate matter to pass through into the engine.

An interesting side note was the reason given for oiling these type of filters. The type of filter oil needed must be able to be completely dissolved with soap and water. The oil is needed to stop road oils and contaminants from adhering to the filter element. Instead, they accumulate on the oil surface and are washed away when the filter is cleaned. Without the oil, contaminants such as petroleum contaminated exhaust smoke and chemical or oil comtaminated air pollution will be absorbed into the element and require solvents to remove, which will then damage the element.

Title: Re: KnN Air Filter
Post by northshore_paul on 07/09/08 at 19:48:47

Makes you wonder about the performance bikes that don't use any filtering element at all in order to get as much air as possible. How long can you run like that?

Title: Re: KnN Air Filter
Post by Gort on 07/09/08 at 21:51:20

4352465F330 wrote:

Makes you wonder about the performance bikes that don't use any filtering element at all in order to get as much air as possible. How long can you run like that?

This is an old story....a vehicle manufacturer spends millions of dollars and employs graduate engineers to develop a vehicle which is the best compromise possible for public acceptance. Then along comes an assortment of small businesses that offer "improvements" which the original manufacturer decided not to incorporate in his design for very good reasons. An air filter has to filter the air at a level deemed acceptable for engine long life. This filter is a compromise. Then along comes K&N and its clones who promise improvement in performance and lie about their filters removing more contaminants than the factory unit. Then comes independent tests which visually show the dirt that K&N lets through, as compared to the factory filter. Look at all the oil additives, like Slick 50, and so on. Lycoming Aircraft Corp. tested all of them, and said that at best, the only thing some of them will do is not damage your engine, and at worst, they will damage your engine. Look at the false claims Splitfire spark plugs made for its sparkplugs. The Federal Government prosecuted them for false advertising.

Seems like the safest thing is to trust the vehicle's manufacturer.

Title: Re: KnN Air Filter
Post by mo.goad on 07/18/08 at 11:00:16

Well, just installed my new KnN filter and VERY happy. Warm-up time is considerably less, acceleration is super SMOOTH and low to mid range power is up, more than I imagined it would. A good investment that I would recommend for anyone. Now to put my HD Dyna Muffler that was given to me on.

Title: Re: KnN Air Filter
Post by bill67 on 07/18/08 at 11:09:54

I would think if your warm up time is less your not getting as much air and running richer.

Title: Re: KnN Air Filter
Post by mo.goad on 07/18/08 at 16:15:56

I'm sure thats possible, I've only took it for one test ride afterwards but could be that the extra air intake is nullifying the "stall or surge" thats normally associated with being cold. Then again I may not know what the hell I"m talking about lol

Title: Re: KnN Air Filter
Post by bill67 on 07/18/08 at 16:20:21

Its hard to tell by one test ride.

Title: Re: KnN Air Filter
Post by Cornerstore3000 on 07/18/08 at 18:46:25

Well we will just put it this way, I have a K&N filter on my S40 and my Dad doesn't on his S40 and mine will STOMP his in the mud every time. He can also be going full throttle and quite a ways in front of me and I'll catch up and pass him every time. My bike also runs smoother and I never have to buy another stupid stock filter again.

Title: Re: KnN Air Filter
Post by bill67 on 07/18/08 at 18:52:48

Do you and your dad weight the same,running the same jets,and same muffler.the same gas mileage.

Title: Re: KnN Air Filter
Post by Tincanman on 09/12/08 at 06:02:16

TRUST ME that K&N has NOTHING to do with my sons bike being faster than mine. It was that way BEFORE he changed it. ::)

Title: Re: KnN Air Filter
Post by Savage_Amusement on 09/12/08 at 06:52:38

It wouldn't matter if I rode his bike and he rode mine it would still be faster. And at the time yes they both had the same exhaust, jets, air filter and dino oil. Things are a lot different now and the results are still the same. I don't know if mine was broke in different or what.

Title: Re: KnN Air Filter
Post by bill67 on 09/12/08 at 07:00:43

Tell us what did you do to your dads bike ;)

Title: Re: KnN Air Filter
Post by justin_o_guy2 on 09/12/08 at 07:27:46

745845595245444358455204070707370 wrote:

Things are just Different. Even engines coming off the same line are different. The manufacturing variances in every part add up to make one engine a bit better than the rest. Try swapping air filters with Dad & see if that changes who wins. Maybe its the fiklter, maybe its, you got a faster bike?

Title: Re: KnN Air Filter
Post by Savage_Amusement on 09/12/08 at 20:36:42

When both had stock filters and his was newer my bike was still 10 miles an hour faster.

Title: Re: KnN Air Filter
Post by Tincanman on 09/14/08 at 19:40:43

I havent changed mine yet but Im looking into one of these(see the link) I got one for my 4runner and I love it. only thing is it will have to be a pod type.

http://www.ramair-filters.com/

OH YA and Savage_Amusement's 10mph over on me is about to go byby ;)

Title: Re: KnN Air Filter
Post by Savage_Amusement on 09/15/08 at 06:18:48

That's alright, I really don't care at all. Its all about the ride and having fun, not about how fast you can go. I'm getting a bigger bike here in awhile anyhow.

Title: Re: KnN Air Filter
Post by desert_cruisers on 09/20/08 at 07:00:05

I can say this much. The filter on my bike was a significant change. I do believe that k & n makes claims that are highly inflated and that is what they are always going to do.

My bike is an 05 and I rode it for the first two years completely stock and could never go over 85 mph but the throttle was had a lot more and it wanted to keep going.

I took out the spacer completely and did the screw adjustment to 2 turns out. This made an enormous difference.

However, when I added the K & N to the mix after all of the above, my bike was then able to easily break the 85 mph barrier to 90 easy and at times, depending on wind resistance and temperature 95-100. The filter made acceleration a lot quicker along with top speed.

The problem with k & n filters is that I have them in all my cars and do notice a big difference in throttle response and that is it. No mileage difference or acceleration.

When putting one in a very small engine like the s40/savage, that little difference it makes in a big car engine turns into a big difference in a small engine.

One other thing that really helped my bike in the extreme heat of Arizona, was to put all synthetic oil in. This made the engine a lot cooler after riding, made the engine quieter alltogether. It also helped a lot in acceleration.

I have changed my oil with synthetic twice and evertime I get done riding a long trip, the heat that is put out to the touch is so much less. The shifter shifts smoother.

The bottom line is regardless of how much extra crap the K & N allows into the engine, it makes no difference as these engines are bullet proof and if properly maintained, the filter may reduce engine life slightly but you could change the oil on these bikes with vegetable oil and they would still keep going and going. They are equivalent to older Hondas or Toyotas, all of which I know stupid kids that have put vegetable oil in them for years with no problem.

Also, why do all these rice burners have fancy mufflers, intakes and god knows what else and I know many of them with over 200k with no problems.

Do what you want to the Savage within reason and it will keep going.

Also, it is definitely true that 10 bikes from the same factory broken in the same way and identical in every way, will have slight differences and also a couple will be faster and more efficient. I think I lucked out and got the freak fast one of the bunch.

Thanks

Title: Re: KnN Air Filter
Post by SavageGreaseMonkey13 on 09/20/08 at 08:15:15

anyone ever try this filter? http://www.knfilters.com/search/product.aspx?Prod=RC-2310 all the dimensions are correct to be able to fit i think. if i can save some money i might buy one to try it out.

Title: Re: KnN Air Filter
Post by justin_o_guy2 on 09/20/08 at 08:59:03

All this about Air Filters & no one pointed out OldFellers mod? That aint right.. They coulda saved the $$$ & had all the performance gains.

Title: Re: KnN Air Filter
Post by Savage_Amusement on 09/20/08 at 11:22:17

Well I did have the filter before I knew of the site. I'm going cone and air box free after while anyhow.