K&N Test - GL1800Riders
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post #1 of 19 (permalink) Old 03-18-2017, 09:49 AM Thread Starter
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K&N Test

Probably been posted before but here it is:

http://forums.nicoclub.com/debunking...r-t180100.html

Rob - 08 Pearl White Navi Goldwing


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post #2 of 19 (permalink) Old 03-18-2017, 10:08 AM
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I've been running K&N filters since the early 70's with no problems. Hundreds of thousands of miles. At one point I was driving over 160 miles per day round trip to work. Right now my F6B , my Grand Marquis and my Grand Cherokee all have K&N. My F150 runs a Banks cotton gauze filter. At the point I was driving 160+ miles a day I lived 2 miles down a gravel road. Paper filters were only lasting a month. I lived on that road for 17 years.The K&N would go six months between cleaning. My Grand Marquis has 162,000 miles on a K&N. Doesn't use a drop of oil between changes. I'm gonna keep running with the horse that got me to the race. Maybe its not the best but its most certainly good enough for me.
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post #3 of 19 (permalink) Old 03-18-2017, 11:23 AM
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K&N filters always come in last in these tests but folks keep wasting money on them. It's kinda like the loud pipes many folks spend their money on they usually actually cut performance but folks imagine because it's louder it's faster.

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post #4 of 19 (permalink) Old 03-18-2017, 11:33 AM
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Quote:
Originally Posted by cycledude View Post
K&N filters always come in last in these tests but folks keep wasting money on them. It's kinda like the loud pipes many folks spend their money on they usually actually cut performance but folks imagine because it's louder it's faster.
The pipe theory only depends on of rest of engine is tuned to meet pipe requirements for a proper running engine. If one just slaps pipes on they from what I seen and felt loose power.
Never been a fan of K&N but have a hard time believing the Uni foam filters preform so poorly in their tests if they are maintained properly . Most I believe either over spray or under spray oil on foam filters and do not let them sit prior to running them. If Uni Filter made a filter for wing , that's what I would be running. But that's just me . I buy 2 uni's at a time and have one clean on shelf oiled ready to roll . Assuring oil seeps all the way into foam . Both elements that is .
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post #5 of 19 (permalink) Old 03-18-2017, 11:44 AM
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I've always been a fan of Baldwin. I prefer dry type filters. I have no desire to wash filters in solvent and mess with oil treatment or sprays. I don't think K&N really makes a practical difference for a consumer product. They have some nice looking filters for show type applications that I think is neat.

I always figured I would give K&N a chance when Catipillar starts using them in their off-road equipment products. But I have never seen an owner of a big bulldozer ever put one in.
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post #6 of 19 (permalink) Old 03-18-2017, 12:06 PM
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Quote:
Originally Posted by Rail32 View Post
The pipe theory only depends on of rest of engine is tuned to meet pipe requirements for a proper running engine. If one just slaps pipes on they from what I seen and felt loose power.
Never been a fan of K&N but have a hard time believing the Uni foam filters preform so poorly in their tests if they are maintained properly . Most I believe either over spray or under spray oil on foam filters and do not let them sit prior to running them. If Uni Filter made a filter for wing , that's what I would be running. But that's just me . I buy 2 uni's at a time and have one clean on shelf oiled ready to roll . Assuring oil seeps all the way into foam . Both elements that is .
A dyno test would be cool.

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post #7 of 19 (permalink) Old 03-18-2017, 01:08 PM
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I would be surprised if a filter that flowed more air did not flow more dirt, the question then becomes if the additional dirt is enough to do serious damage to the engine. I don't know the answer to that, but for me the minimal gains you "may" get in power is not worth taking the chance. I tried one on a old pickup truck I have a few years back and did not see any benefit.
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post #8 of 19 (permalink) Old 03-18-2017, 02:13 PM
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There OK I found no difference in performance or fuel mileage while using the K&N the trouble is servicing them there fiddly IMO so it takes a lot of time to properly clean and dry and re oil it so now I pop in a aftermarket OEM type filter while I take my time cleaning and re oiling the K&N for the next change AIR BOX O RING has to be taken on and off with my method
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post #9 of 19 (permalink) Old 03-18-2017, 02:42 PM
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It would be interesting to see them do a dyno test on the same filters, on the same truck, same day etc. And then post all the charts versus giving us an "opinion" that it did not increase horsepower based on seat of the pants or what ever criteria the author seems to want to push. While I don't doubt that peak horsepower is not changed or has very little change, I am curious about power changes in the lower rpm's and mid range due to less restriction to air flow. I am thinking when a piston starts moving down its like a syringe having to suck the air into the chamber. When using real syringes less restriction means easier to pull with less effort, but still thinking it got the same amount of air. The air just moved slower and took more energy. So how does this translate to engines. Different people always give me different opinions and experts seem not to all agree. So for me I would like to see Dyno charts on the same truck, same day, etc to see what difference the reduced restriction makes in a controlled manner and not just an authors opinion.

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post #10 of 19 (permalink) Old 03-18-2017, 02:44 PM
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I used K&N filters in almost everything. It's takes no time at all to clean and oil them. Buy them once per vehicle and your done with buying filters for the life of the vehicle. The K&N in my Harley has been on my two previous Harleys. To each his own. Now lets start a discussion on motor oil I haven't seen that one today!
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