Open element filter options, 2 or 4?

I am curious if anyone has input or opinions on 4 single pods vs 2 double filters for 4 carbs?

notaduc wrote:

I am curious if anyone has input or opinions on 4 single pods vs 2 double filters for 4 carbs?

NEITHER ! As always, my attitude is if you have a fairly stock street driven bike keep the stock airbox !!!! If you don't have any tuning experience and you swap to pods you are headed for a lifetime of tuning misery.

I think that could cause problems. I believe that the intake events for 1 & 2 and 3 & 4 overlap. Toward the end of the intake cycle on cylinder 1, the intake cycle for 2 begins. Assuming there is more resistance pulling through the filter media than from the neighboring cylinder, this could allow cylinder 1 to draw from #2, thus allowing only a partial charge to enter #2 after the intake valve on #1 closes. Having individual filters or short runners into a large intake box would prevent this.
I have seen a single "pod" filter for all 4 that perhaps has just enough plenum effect to prevent this. On the other hand, this may be why such mega-pods fell from favor.

Just my .02 theory..............

Polar_Bus wrote:

notaduc wrote:

I am curious if anyone has input or opinions on 4 single pods vs 2 double filters for 4 carbs?

NEITHER. As always my attitude is if you have a fairly stock street driven bike keep the stock airbox !!!! If you don't have any tuning experience and you swap to pods you are headed for a lifetime of tuning misery.

+1

It is not stock at all as far as the bike is concerned, but the motor will be mostly stock.

It is for a complete custom, that will not be a daily.

As far as tuning, I will be playing with jetting plenty anyway with the carbs I am using, and have battled plenty of other jetting mysteries in the past, and am aware that pods are tougher than stock.

The overlap issue more or less answers my question.

I remember seeing a post on here somewhere with a guy with vm29's and some other craziness that was running paired filters that seemed to have his setup dialed...

notaduc wrote:

I am curious if anyone has input or opinions on 4 single pods vs 2 double filters for 4 carbs?

Click > kzrider.com/index.php?option=com_kunena&...d=3&id=245889#245971

Scroll down to post by guitargeek, and following.

Good Fortune!

Guess my expensive theory may be faulty, though I wonder what advantage two siamesed filters have over four singles.

Just more air, far as the manufacturers say. Its a larger surface area to draw from.