Air Filter 701

Today I slapped'd in a HFA6301.
It was very interesting.

Initially I noticed was that it was quieter.
Then I noticed was that there must have been a slight change in the resonance effect of the airbox because the power has shifted slightly...

All good, until I tried to make the fancy quickshifter pop noise... and it sounded weak 😱😱😱

First thing soon as I got back t' tha g'rage was put the LX925/1 back inside.

So, tip to those who want less noise - HFA6301
 
After a ride with a brand new LX925/1 (stock) the loud quick shifter pop noise returned and the power shifted back to where it was...

Now expanding on that, when changing from paper brands, a noticeable difference is there, so has anyone noticed a difference with a k&n or twinair?

Sure... the HP will stay the same... but its the way it builds power which could be interesting... I would expect the least resistance to cause the biggest change resonance rpm and create a very noticeable shift in the power.
 
Go get one, buy all different available filters you can find.... 🤦‍♂️

(Serious, you won't find a difference between one air filter and the other. Remember this is the same filter as the 1090 and/or 1290 Adventure. It's simply not a limiting component in the intake...)
 
I just bought a K&N because it was cheaper in the long run than replacing paper filters 🤷🏻‍♂️
I notice no difference whatsoever.
 
In fact, for the 401 I did try every filter that you can buy.

(All of them filtered air except one of them, which made the airbox fill with a layer of fine particles)

As far as restrictions go, there is no concern.

I only wonder if there is a change in resonance which moves the powerband to a more desirable range.

Example: with filter "a" power wheelie starts in 2nd at 6000rpm, next filter power wheelie starts at 7000rpm, next filter at 5000 rpm,...
 
I started with lid, removed the lid later on.
I think I'm not very sensitive to changes like that.
I don't notice a difference in riding with a full or empty tank. Not just on the Vit, but never have on previous bikes either.
I notice a difference in lid or no lid obviously. But a difference in chain or air filter, nope.
 
Yea, for me its not really about more power, its about better delivery of the power.

I may test the K&N, or the Twin Air from KTM for the 1090/1190 if I come across em on sale.

Both look to be of similar price / value.
 
Thats right, just think about going to your local Save Mart, when they ask "Paper or Plastic" its the exact same as the Stock vs. K&N...
Better delivery of the groceries.
 
Duuuudde

When you give a musician a guitar, whats the first thing they do?

Turn the little nobs on the end of that puppy.

🙉
 
Revitalizing this thread:

Screenshot_20220913-151228_Samsung Internet.jpg

Just kidding.


After some time on the dyno, it was apparent that only minor changes to the air filter media / configuration also show consistent & measurable differences.

Anyone else done any testing so far?
 
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