K&N air filters, whats your opinion? - Page 5

sprintman1 · 29-09-2015, 10:15 PM

Quote:

Originally Posted by 99AUXR

Yes I can. And you have avoided my question yet again. Im only carrying this on so people don't start following your opinions on K&N filters, unless you can provide cold hard results that state otherwise.

But at this stage I would assume my opinion and testing is sound and there is nothing wrong with the filtration of a K&N filter and anyone who uses one not going to see engine failure caused by the K&N filters 'lack of filtration'.

Please move on from insulting members and provide data because at the moment you are only one out of thousands.

Use Google, find BITOG, read UOA's. Simple eh?

SpoolMan · 29-09-2015, 10:26 PM

Insulting anyone isn't within spirit of what this Forum is about.
Its simple, if one doesn't want to help another member then you needed bother posting in the 1st place.
Real info with personal experiences is the best way to help and learn from one and other and we do this with respect for each other.

sprintman1 · 29-09-2015, 10:27 PM

Quote:

Originally Posted by SpoolMan

Insulting anyone isn't within spirit of what this Forum is about.
Its simple, if one doesn't want to help another member then you needed bother posting in the 1st place.
Real info with personal experiences is the best way to help and learn from one and other and we do this with respect for each other.

What part of had and replaced don't you understand?

**GasoLane** · 29-09-2015, 10:46 PM

Quote:

Originally Posted by sprintman1

What part of had and replaced don't you understand?

What part of be polite don't you understand.

Please reassess your posting attitude, or don't bother posting.

Trump · 29-09-2015, 11:00 PM

In before lock shenanigans

Falcon SXR8 · 29-09-2015, 11:23 PM

I'm worried now I've been running crap and nastie filters for years and never had a problem maybe I'm pushing my luck :-)

Never brought one for performance though, just because it saves money in the long run and never pay full price for one, get them on sale and you can get them for $80. Pays for itself in no time.

SpoolMan · 30-09-2015, 12:07 AM

Quote:

Originally Posted by sprintman1

What part of had and replaced don't you understand?

No one was named.
My post was directed to everyone in this thread, not just you.

bazza91 · 30-09-2015, 01:02 AM

So in this thread we have seen only UOA's that show k&n have no adverse effects on your engine over time.
Sprintman you keep arguing black and blue that they are no good, could you show us a UOA that shows the crap filtration qualities of k&n ? Please don't mention Bitog forums and how many are on there. Show us here. The amount of time you have spent saying to go there and look at UOA's you could've have just posted one here and ended the argument.

**russellw** · 30-09-2015, 07:25 AM

He won't be posting anything for a little while ....

Cheers
Russ

Sox · 30-09-2015, 08:23 AM

Way to go 'sprintman1', what's it like in the hole?

For the record, I don't use K&N either, mainly because I couldn't be stuffed cleaning and oiling a filter.
Paper filters are so cheap and do a better job (IMO) for there intended purpose.

But each to their own...

T MAN · 30-09-2015, 08:52 AM

imo, unless you are keeping the car/filter for 8-10 years or more, its cheaper to buy a oem replacement every year or so, which I think in some applications is better than fitting a oiled k&n due to oil residue building up in maf sensors over time..

in my experience the differences power wise is not something you can notice by seat of pants driving..

HIPO · 30-09-2015, 09:07 AM

There's a number of peeps from a couple of Mitsu forums, that have used various dyno's to test paper vs K&N & there's NO measurable diff.
Also backed up by ex Mitsu R&D guys, whom I know personally, that tune & or race FI & NA cars.

Mine sits in the shed, replaced by a factory paper one as I cant be bothered with the up-keep & its too easy to over or under oil it.

Maka · 30-09-2015, 09:07 AM

K&N would'nt be around for so long if they were no good, your on a winner with them in the longevity stakes & in the right application flow is better than stock. There's always a little trade off in filtration & flow right, some owners will go all the way chasing power with their combo's, where others want more protection & may opt for something that filters a little better like a paper. Captain Obvious for owners who know what they are doing hey!

cheer's, Maka

stue · 30-09-2015, 10:18 AM

I have never ran a k&n fliter on one of my fords, i have however ran one on a nissan silvia. Fliter has been on the car for 15 years and has covered about 100,000 km. I've cleaned and oiled it every 5000 km and never had a problem with it. Still looks as good as the day i bought it. Its more than paid for its self.

Madaya · 30-09-2015, 11:44 AM

Ran my K&N + CAI for the last 30k. (FG na ute). Can't say I noticed a big difference in economy or power. It comes down to having a proper tune to benefit from any mods with modern engines.
Nice note though when pushing. Sounds like the exhaust, very deep, but its coming from the front of the car. Otherwise, quiet when cruising.
Running original air cleaner now while I service the K&N.

**Falcon Coupe** · 30-09-2015, 11:57 AM

I have/had K&N or BMC filters on all my cars and bikes (except the Territory as I like it quiet).
When I swapped out the paper filter on the 393 the idle rpm rose 300 instantly. Better breathing makes a difference.

At Heathcote I removed the K&N for an open test run with no filter, made no difference to mph or ET.

Road Games · 30-09-2015, 12:44 PM

My xr6 ran 1/10th and 1mph slower when i removed my K&N back to back on the same night...

But i dropped 2/10ths and picked up 1mph with headlight out and no filter at all...

I just lurv the induction roar of a K&N.... it scares unsuspecting pedestrians

Carrion · 30-09-2015, 02:09 PM

Quote:

Originally Posted by bazza91

After Sprintman1's comments getting deleted in another thread and my general lack of knowledge about this brand of filter, I thought id start a new thread for everyone to voice their opinions, experiences, links to tests etc about K&N air filters.

Ready.... and GO!

I see what you done there

That's gold

I use stock filters because I am lazy

Road Games · 30-09-2015, 02:32 PM

And how is that new FG-X XR8 you ordered back in Feb going Bill ?

Gonna put a K&N on it ??

Carrion · 30-09-2015, 03:08 PM

Quote:

Originally Posted by DAZZLR

And how is that new FG-X XR8 you ordered back in Feb going Bill ?

Gonna put a K&N on it ??

Still waiting on XR8

Will have to PM sprintman1 about air filter on the XR8.

PS
can you PM somebody that is Banned??????

Wolfinsheepsclothing · 30-09-2015, 04:40 PM

I've had a K&N or BMC on most my cars and they're great

Sox · 30-09-2015, 05:19 PM

Quote:

Originally Posted by Falcon Coupe

When I swapped out the paper filter on the 393 the idle rpm rose 300 instantly. Better breathing makes a difference.

That makes no sense.
If you said you gained 10hp at @6500 by using a K&N, sure, but at idle?

The CFM requirement at idle is 2/5 of bugger all, a filter made from 200mm thick lambs wool would likely show no change at idle.

Are you sure your paper filter wasn't sitting in a spray booth for 25 years?

**Falcon Coupe** · 30-09-2015, 05:40 PM

Quote:

Originally Posted by Sox

That makes no sense.
If you said you gained 10hp at @6500 by using a K&N, sure, but at idle?

The CFM requirement at idle is 2/5 of bugger all, a filter made from 200mm thick lambs wool would likely show no change at idle.

Are you sure your paper filter wasn't sitting in a spray booth for 25 years?

Quite possibly an old filter? it was on the car when I bought it.
I changed the filter in the car park of the parts store and noticed as soon as I started up. Had to grab a screwdriver and turn it down.
I imagine the needs of an Holley 1000hp is different to the average intake of new cars.

Sox · 30-09-2015, 05:55 PM

Quote:

Originally Posted by Falcon Coupe

Quite possibly an old filter? it was on the car when I bought it.
I changed the filter in the car park of the parts store and noticed as soon as I started up. Had to grab a screwdriver and turn it down.
I imagine the needs of an Holley 1000hp is different to the average intake of new cars.

I'd say a very very old and incredibly dirty filter, perhaps even oil drenched.
Even then, you would have noticed a very strangled engine as revs increased, a massive power drop.

At idle it would be much the same as any other engine of similar cubic capacity.
The CFM at idle is very low on even a very high HP engine. The throttle plate is practically closed.

I've seen dirt bike filters choked up with so much mud, they would barely rev above 2000 or so.
The idle was still fine.

I'm not saying it didn't happen to you, but it's hard to believe it was attributed to the paper filter.

Road Games · 30-09-2015, 06:17 PM

Ever heard a pod filter on a stock 5.0 holden at idle ?

Pardon the pun but those thing seriously suck !

At idle that is

Oh and in general ...

shazaam · 30-09-2015, 08:19 PM

Oh he's gone.... I was gonna ask for a pic of his filter and cai setup on his Ford.....

bazza91 · 30-09-2015, 08:23 PM

Quote:

Originally Posted by shazaam

Oh he's gone.... I was gonna ask for a pic of his filter and cai setup on his Ford.....

Maybe he will be kind enough to show us upon his return.

PHANTMXR6 · 30-09-2015, 09:05 PM

It wasn't a Ford fellas...

bazza91 · 30-09-2015, 09:26 PM

he kept mentioning a beamer, I assumed he also had a ford

99AUXR · 30-09-2015, 09:37 PM

Its good to finally have some more feedback from people who have used K&Ns my conclusion from this thread is there is no real need to change from the paper filter in a standard airbox application, as the paper filter and airbox is very efficient in modern vehicles.

Unless you are wanting the increased induction noise or the serviceability the K&N or similar BMC provides in which case it is highly unlikely that you will see an engine failure caused by the use of these filters in any case.