I contacted K&P Engineering and promptly recieved this reply. I have been already using one so I know they work and are simple to use but impressive that I would get a reply so quickly. I did ask for permission to post this.
Make sure they know you are talking about the K&P Engineering filter. The ebay filter they mentioned (pegasus) tried to copy our design but failed testing for oem requirements and the quality is very poor. Something to be said for actually engineering a product vs trying to copy someone else. It’s actually good these guys on the forum are skeptical and want to make sure the product is what it appears to be. We’ve had a couple of people contact us complaining they were misled thinking they were getting our filter when they were sent the other one. I think JP even carries the copy filter.
Dave Fisher
K&P Engineering
303-507-4540
www.kandpengineering.com
dave@kandpengineering.com
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Dave, thanks for the quick response. Do you mind if I quote your response on a harley forum. It is
www.hdforums.com you can look in the touring section and see the discussion regarding reusable filters. I am posted under mtclassic. I won't post your response without your premission. thanks jeff.
-----Original Message-----
From:
To: Sent: Wed, Nov 4, 2009 9:11 am
Subject: RE: filter question.
Paper media is made up of a bunch of fibers of various sizes and thicknesses that are either pressed and or glued together. The paper media needs to be thicker in order for it to be able to filter to the appropriate level.
Our filter media is made of up stainless steel wires woven into a cloth. The type of weave that you pick, along with the thread count that is used in each direction, determines the shape of the openings in the cloth as well as the direction the opening is pointing. The openings in our cloth end up pointing in various directions which maintains the flow but makes it even harder for a piece of debris to get through the cloth. In other words if you are looking straight down at the media, the openings will seem even smaller than they are because they are not 90 degrees to the surface of the media. It is a single layer so that it can be cleaned, but feels thicker because of this weave.
In the end what really matters is how big the particles are that are getting through the media. That’s why we use the ASTM test. Basically it identifies how large the particles are that can get through the media regardless of how thick the media is or what shape the openings are or what direction they are pointed.
After a year of testing the FAA approved our filters for certified aircraft, the technology had been in use for many years before we started using it by the military and aerospace applications, and we have been making them since 1995 with tens of thousands of them used in various applications with not one problem with the filtration. And that isn’t even the filters strong point! It’s really about the flow. If you don’t have enough flow, and the bypass opens (which happens more than people realize with the stock filter) it doesn’t matter how good the filter media is.
Good luck and let me know if you need anything else.
Dave Fisher
K&P Engineering
303-507-4540
www.kandpengineering.com
dave@kandpengineering.com
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DragonRK
