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TR6 TR6 Filter

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jerrybny

jerrybny

Jedi Knight
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I'm sure this subject is gonna start a livery discussion but here we go. I took my 73 TR6 into a real respected Triumph mechanic for a checkover. He said that the K&N Filters I had on didn't perform as well as the original filter setup. Now mind you I've read on here that the K&N are better thats why I put them on. This guy races Triumphs but he is an older gentleman so he may not go for new fangled things as easily as as younger folks(I'm 56 BTW). Any thoughts opinions on this subject? I'm torn between putting the K&N back on cause I think they look cooler than the stock filter. Thanks and Happy Memorial Day to all.
 
As always, it depends on what you mean by "perform". K&N is primarily a racing filter, so letting the most air into the engine (for the most power) is a priority for them.

But the tests I've read indicate that they also let much more dirt into the engine; plus relatively quickly become clogged so they no longer let more air in. Here's a typical test report
https://duramax-diesel.com/spicer/index.htm

Friend of mine also had a problem with his 914-6 where the K&Ns shed tiny fibers into the engine when they got wet. He had to disassemble his carbs and blow out all the air bleeds to get the engine to run right again.

So my opinion is that the K&Ns are fine for a race motor that will get torn down every season or two; but I wouldn't run them on the street.
 
<span style="font-weight: bold">FILTERS!! We don't need no stinkin' filters...</span>

I just have those on for show. I have some socks that fit over them, but in reality, I'll be putting on the original filters, unless I can find an appropriate fluted paper filter. The paper filters are generally the best way to go, which I believe are stock for the TR6.
 

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Been running, selling, experiencing K&Ns for a long time. I think they are great. Probably over rated and over sold, but still better than what usually passes for air filters on much of the older iron. The older stuff would keep out the rocks and low flying birds, but that's about it. Maintain your K&Ns properly and appreciate the look and have fun.
 
another point of view is you can clean them and reuse them, think of all those paper filters that get thrown away each year, now I am not a tree hugger guy but if I can keep 10 filters out of the land fill each year then I am helping out and I drive a toyota 4 runner with 250,000 miles and I think ir filters just fine
 
I have had my K&N filters on for several years now and keep K&N Precharger socks on all three of them. Just the other day took them down to clean and re-oil them and there was really no need. They were clean as a whistle. Maybe it was the Prechargers, which are designed to keep dust and water out of the filters. K&N filters are cotton, and do occasionally need oiling.
 
Here's another alternative. Longflo Ovals. They have a foam filter element and although some may disagree, require no oil.
longflo.jpg

longflo2.jpg
 
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