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quick K&N filter question
Posted: Sat Mar 26, 2011 2:42 pm
by Mosko111
wanting to buy a K&N filter off ebay, now i have 3inch pipe that i want it to be attached to using a hose clamp, what do i search to get that size? do i need to buy a 3inch x 8 inch filter?
and is the flange diameter the size that needs to be 3 inch?
Re: quick K&N filter question
Posted: Sat Mar 26, 2011 6:18 pm
by Struth
Go to the K&N website and look up the part number you want to buy, they will have all the relevant dimensions on the site.
Re: quick K&N filter question
Posted: Sat Mar 26, 2011 7:52 pm
by Mosko111
its the first time im buying one mate, just got rid of the old safari snrkel and now have a custom made one,
so i have 3inch pipe i need to fit the pod to, but just wasnt sure if thats the "flange" diamater
Re: quick K&N filter question
Posted: Sun Mar 27, 2011 6:58 am
by azwa
Mosko111 wrote:its the first time im buying one mate, just got rid of the old safari snrkel and now have a custom made one,
so i have 3inch pipe i need to fit the pod to, but just wasnt sure if thats the "flange" diamater
k & n at the top of ya snorkel will probably get flogged you'd be better off with a cheap pod filter mate go to superheap,
buy the k & n for the inside of your airbox , if you go onto there website you'll get a part # for your particular vehicle.
azwa.
Re: quick K&N filter question
Posted: Sun Mar 27, 2011 7:08 am
by chimpboy
http://www.knfilters.com/search/univ2.aspx?ID=S0013" onclick="window.open(this.href);return false;
image shows what is what. I believe that "flange inside diameter" ("F") is probably what you need to match to your pipe.
Search by type here:
http://www.knfilters.com/search/universal.aspx" onclick="window.open(this.href);return false;
You realise these things are complete shite compared to a proper paper filter though.
Re: quick K&N filter question
Posted: Sun Mar 27, 2011 9:09 am
by azwa
chimpboy wrote:
You realise these things are complete shite compared to a proper paper filter though.
no i didnt know that chimpboy , please enlighten me.
azwa.
Re: quick K&N filter question
Posted: Sun Mar 27, 2011 9:10 am
by 6.5 rangie
chimpboy wrote:
You realise these things are complete shite compared to a proper paper filter though.
x2
Re: quick K&N filter question
Posted: Sun Mar 27, 2011 9:36 am
by chimpboy
azwa wrote:no i didnt know that chimpboy , please enlighten me.
You will find a lot of discussion online, including on this forum. I guess it is always debatable but I find the arguments against the K&N filters pretty convincing.
For mine your best bet is to have a good airbox between the outside world and the motor, with a good conventional paper filter in it.
Re: quick K&N filter question
Posted: Sun Mar 27, 2011 9:22 pm
by Mosko111
the K & N will have a metal shroud protecting it so it getting smashed isnt a worry to me, and whats a good quality paper filter brand chimp boy? when i do an engine swap ill look into on in an airbox, at this stage ill stick with a pod and then straight through to turbo as it wont be used many times before it all taken out...
Re: quick K&N filter question
Posted: Mon Mar 28, 2011 6:11 am
by 6.5 rangie
K&N are great in road cars where dust is minimal, but off road not so good as they breathe to well and let to much dust through
Re: quick K&N filter question
Posted: Mon Mar 28, 2011 7:42 am
by ISUZUROVER
What the others have said... K&N are only for road (if at all).
Here are some measurements I did OEM against K&N replacement (all land rover 2.5 Tdi filters). The difference may not look like much, but over any length of time it will mean your engine is chewing on a lot of dust with a K&N. Notice also that the K&N measurements level off at ~90% they don't actually get to 100%.
Those who do oil analysis and drive with K&Ns in dusty conditions have found highly elevated silica levels in their oil.
Re: quick K&N filter question
Posted: Mon Mar 28, 2011 9:17 am
by chimpboy
Just personally, if I were on a budget I would look at adapting a box from some other car, like a falcon or commo, which have 75mm outlets, then a paper filter to go inside.
If I had more dough I would look at a donaldson air box.
It depends on available space of course.