K&N Air Intake Installation

[Lingered_I]

Pop it off and see if there's a valve in it. Could it be a device to allow back pressure to go somewhere instead of the filter box?

[Lingered_I]

Pop it off and see if there's a valve in it. Could it be a device to allow back pressure to go somewhere instead of the filter box? Or it's a vapor trap. Or it's a very small resonator.

[djeaux]

Another thing that shows in Keith's photos of the OEM box is how dirty the filter gets right above the cold air inlet. I wonder if it would be good policy to reverse the OEM filter front-to-back at about halfway through its service life...

[Lingered_I]

It's not reversible because its not rectangular.

[Andy-Montreal]

Honda calls it a side-branch tube. My guess is that its function is to trap any ingested water that may seep thru the air filter.

[k757]

Originally Posted by Andy-Montreal

Honda calls it a side-branch tube. My guess is that its function is to trap any ingested water that may seep thru the air filter.

I took the tube off, it is empty.

[djeaux]

Well, it does look a lot like a sink drain trap, doesn't it? But there's no place for any "ingested water" to go after it enters the side branch tube, no drain.

Anyway, unless you were driving in a hurricane or fording a creek deep enough to flood the interior, wouldn't most water getting past the filter be effectively atomized?

Of course, on white Ridgelines, this is where the flux capacitor sensors go...

Seriously, I'm wondering if it has anything to do with modulating airflow in the intake tube. Just speculating here, though.

All sorts of possibilities & surely there's an engineer here that can explain it

[k757]

Here's some perspective on how big the cone really is!

[djeaux]

Condensation trap it is, then!

Reckon why it's placed where the intake tube curves up to meet the air box instead of at the lowest point in the intake?

[Andy-Montreal]

Originally Posted by csimo

The question is about the condensation trap? Since the air intake tube is subject to a wide spectrum of both air temperatures and pressures condensation is a regular occurrence.

You would be surprised how little water it takes to hydrolock an engine.

So its function is to trap water then? Interesting.....

Not to get off the subject (Joe & Keith) but please tell us as the suspense is killing me...........did you or did you not notice a powergain difference?