I had another go at makeing the Jetex fillter look a bit more attractive in the engine bay today and failed, so I'v gone back to my modded airbox, I also drilled a few more holes in the bottom of the airbox to try and add a bit more induction noise
On a more concerning note when I removed the Jetex there was quite a lot of dirt partical's sitting in the TIP unfortunatly I did'nt take any pictures but Jonjay was there to witness the amount of dirt that was there and we were both suprised, Looking at the fillter from the insdie out you can see a lot of light passing through the fillter so it's easy to see why it let so much dirt through,
So moral is an open cone may let more through but at what cost
The PiperX is not coated in oil.
The thing that concerned me was when you held the cone to the light you could see light through it where as the panel you cant
I agreed with what you are saying Bill. However having witnessed it, in fact I pointed it out to DK when he took it off. We are both as shocked as you are with our observation...What make of panel do you describe?
Jetex filters are supposed to be 4 layer cotton gauze and have TUV approval, so I would hope at worst what you have seen dirt wise is from other filters previously, like uncoated foams which i have had personal poor experience of allowing dirt through them, and not the jetex as such. it was'nt a new filter but a borrowed one and 'vacuuming' from inside and out could as easily dislodged some dirt from between the pleats.. it gets right inside them.
I can put new jetex along side green cotton and you can see glimses of light, same as on any other multilayered cotton gauze filter. I have never seen one allow what you have described in tho.
so does it still fit ok then with it been bigger?.