New info about K&N, from an independent racing tea

[dogsharks]

thought you all would enjoy seeing this post, from a racing team who did some testing.

If you're a racer, or a tuning house, you can certaqinly do the same test. I view this as objective info that should be passed along for people to see, so they can make their own decision.

http://forums1.roadfly.org/porsche/forums/924-944-968/4959457-1.html

Sincerely,

Dogsharks

[wax lyrical]

dogsharks said:

thought you all would enjoy seeing this post, from a racing team who did some testing. If you're a racer, or a tuning house, you can certaqinly do the same test. I view this as objective info that should be passed along for people to see, so they can make their own decision. http://forums1.roadfly.org/porsche/forums/924-944-968/4959457-1.html Sincerely, Dogsharks

...thanks for the heads-up. You should post it on the Rennlist Porsche forums, as it seems those guys (mainly in the US) are ALWAYS changing to K&N filters as soon as they get a car (especially all pre-996 models)!

[GuyR]

Great info - this matches what we saw on tuned Jap engines. The aftermarket filters, especially unoiled ones, have relatively large holes and let all manner of microscopic rubbish through..........

Guy

[MauriceC2S]

wax lyrical said:

...thanks for the heads-up. You should post it on the Rennlist Porsche forums, as it seems those guys (mainly in the US) are ALWAYS changing to K&N filters as soon as they get a car (especially all pre-996 models)!

Can't speak for the other forums, but 993 Rennlist folk generally know their OEM intake setup is about as good as it gets ......

Cheers, Maurice

[GuyR]

I know of Porsche racing team based in the UK who have tested all manner of aftermarket filters/intakes on a 996 GT3 RS on a dyno, only to find that not one of them produced increased power, with many producing less.

Guy

[warmfuzzies]

Thanks for the heads up chaps, I've posted a link on the Rennlist 964 forum and stated courtesy of the Pistonheads forum, hope that's ok.

If not I'll delete it.

kevin

[greenv8s]

Been using a K&N filter on my V8S for the last few years. While I had the plenum top off the other day I couldn't help noticing the insides were coated with a smeary layer of oil and fine dust/gravel.

[dogsharks]

The reason for posting this info is to get the "truth" out. Post it where-ever you want to as far as I'm concerned, it's in the public domain.

It still burns me when I encounter someone who will argue about the topic, especially when they're selling the product.

Dogsharks

[neon_fox]

Anyone out there know what filters cup cars use? Melv? If it's good enough for Porsche's race cars it's good enough for me...

Fox
---
964C2

[iguana]

neon_fox said:

Anyone out there know what filters cup cars use? Melv? If it's good enough for Porsche's race cars it's good enough for me...

Ahh but do you rebuild your engine every 100 hrs like a race car......

GT3 cup cars used to use EMC cone filters, not sure if they still do.

[YarisSi]

Interesting but I don't know how reliable the source is. Also this test which I think was done by a jap mag for supra's.
http://mkiv.com/techarticles/filters_test/2/

[dogsharks]

Well.......I would certainly question the "credibillity" of that test, where the money comes from, who places ads in the mag, etc.

What this thread proves, is you can lead a horse to water but you can't make him drink it. People will buy the K&N filters due to claims of power and filtration, but sadly, they are being set up

Dogsharks

[MauriceC2S]

iguana said:

neon_fox said: Anyone out there know what filters cup cars use? Melv? If it's good enough for Porsche's race cars it's good enough for me... Ahh but do you rebuild your engine every 100 hrs like a race car...... GT3 cup cars used to use EMC cone filters, not sure if they still do.

Think that's BMC, Iggy! They are bloody tiny filters, too, sitting in a big cold air plenum. Probably not designed for road use, as you say ....

Cheers, Maurice