D2 air filter options

[MickG]

I was hoping to stick a K&N air filter into my '99 TD5 Disco but according to a couple of local outlets, they don't make one for my model. Will a K&N for a different rover fit my D2 (surely would) or can anyone suggest an alternative?
I have heard good reports of some small increase in performance with the K&N.

Aye, Mick

[abaddonxi]

Gonna get yourself into a can of worms with this one, do a search for the k&n debate threads. https://www.aulro.com/afvb/

http://www.knfilters.com/search/appsearch.aspx

Ran through it and it reckons there is a filter to fit your disco.

On their website they also have lists of distributors in Australia.

Any moment now someone will post the link to the test that shows k&n let in the most dust of any filter.

Looks rather like the k&n is great on road and better off with a paper filter if you're doing a lot of off road.

Cheers
Simon

[p38arover]

According to the K&N Site, it is part no. 33-2788

http://www.knfilters.com/search/product.as...px?Prod=33-2788 (http://www.knfilters.com/search/product.aspx?Prod=33-2788)

2004 LAND ROVER DEFENDER 90/110/130 2.5L L5 DSL - TD5
2004 LAND ROVER DISCOVERY 2.5L L5 DSL - TD5
2003 LAND ROVER DEFENDER 90/110/130 2.5L L5 DSL - TD5
2002 LAND ROVER DEFENDER 90/110/130 2.5L L5 DSL - TD5
2002 LAND ROVER DISCOVERY 2.5L L5 DSL - TD5
2001 LAND ROVER DEFENDER 90/110/130 2.5L L5 DSL - TD5
2001 LAND ROVER DISCOVERY 2.5L L5 DSL - TD5
2000 LAND ROVER DEFENDER 90/110/130 2.5L L5 DSL - TD5
2000 LAND ROVER DISCOVERY 2.5L L5 DSL - TD5
1999 LAND ROVER DEFENDER 90/110/130 2.5L L5 DSL - TD5
1999 LAND ROVER DISCOVERY 2.5L L4 DSL - TD5, from 4/99
1999 LAND ROVER DISCOVERY 4.0L V8 F/I - Petrol
1998 LAND ROVER DEFENDER 90/110/130 2.5L L5 DSL - TD5, from 6/98
1994 LAND ROVER RANGE ROVER 4.0L V8 F/I - Petrol, inc. ESR4238
1994 LAND ROVER RANGE ROVER 4.6L V8 F/I - Petrol, inc. ESR4238

[stevo]

also If the filter has to much oil on it the oil can stick to the air flow sensor and give false readings

[MickG]

Jees, by all accounts, I'm barking up the wrong tree then and should stick with the genuine LR paper filter :oops: Anyone else got any experience with aftermarket filters that would merit changing from the original?

Appreciate the input so far and this has also confirmed my suspisions that K&N do make one for the '99 TD5 - Was told NO by 2 separate stores after a 2 seconds search by each employee - how much business do crap employees not willing to do their job properly actually cost businesses each year - that would be an interesting figure aside!!

Aye, Mick

[p38arover]

Originally posted by stevo
also If the filter has to much oil on it the oil can stick to the air flow sensor and give false readings

Do the new diesel engines use a Mass Air Flow sensor? I dunno.

Ron

[p38arover]

Originally posted by MickG
Jees, by all accounts, I'm barking up the wrong tree then and should stick with the genuine LR paper filter :oops: Anyone else got any experience with aftermarket filters that would merit changing from the original?

Appreciate the input so far and this has also confirmed my suspisions that K&N do make one for the '99 TD5 - Was told NO by 2 separate stores after a 2 seconds search by each employee - how much business do crap employees not willing to do their job properly actually cost businesses each year - that would be an interesting figure aside!!

Aye, Mick

It only took a few minutes on the 'net to find it.

[BigT]

DON'T do it !!!
I've learnt the hard way !
especially if your going to be on a lot of dirt roads,
before i put a K&N filter in my D1 air tube to turbo clean as a whistle,
after using for a month very fine dust stuck to tube , cleaned , thought must not have been enuff oil on filter so reoiled and forgot about, checked again 6 months down the road 8O shocked was an under statement, thicker build up of oilley crud in tube, on turbo and tube to intercooler ,so i said the jolly dashed thing, cleaned all of the above and gone back to paper filter ! motor revs the same as with K&N in there, but how much of that crap got into the cyls? who knows, :?: just have to wait until i rebuild i guess, that probably will be within the next 12 mths. only got 235000 on the clock,was hoping for a fair bit more than that before having to touch it that way. :cry:

[tombraider]

Been running K& N in the 2 landies since day one.

No issues

The trick to sealing them is you must use a silicone grease around the lip of the filter during fitment. This provides the seal required (K&N state this)

Also the Landy Airbox is reknown for not closing properly if not careful. Theres a little plastic tab which bends and prevents it closing properly - Be CAREFUL.

Also the filter is prone to catching during closing causing a small gap. Just grease it up and be thorough.

Theres no dust or crud in my air intake tubes on either vehicle.

And never had a MAF issue either.

Disco @ 80,000km
Defender @ 100,000km

And both breath heavier, Chipped and Intercooled with 3" exhausts.

Cheers
Mike

[DEFENDERZOOK]

<span style="color:blue">i have heard/read that the after market filters dont filter to the same extent
as the standard filter does....


also some of the cheaper paper after market brands do the same....
that is allow the fine particles through.....</span>

[PhilipA]

Have a look at this
http://home.usadatanet.net/~jbplock/ISO5011/SPICER.htm

I had a K&N on my 3.9. went to Jerilderie via Wombeyan caves , where there is white thick dust and found covering on MAF etc.

Also MAF wires were coated in oil. Cleaned oil off MAF with electronic cleaner and mixtures were completely different. Had the car dynod with the dirty MAF and then after cleaning. The operator had richened the curve enormously and now was running 11:1 on wide throttle.My assumption is that the oil/dirt on MAF leans the mixture down low.
A report on Internet on the Hitachi MAF confirms this and it is because the Hitachi on a 3.9 does not have a "burn off" wire heating phase.
So the oiling problem may only apply to 3.9s. But the efficiency of the K&N filtering dirt is the BIG problem as per the report.
I sold mine.
Regards Philip A

[MickG]

Okay, im persuaded to leave the dam thing alone and stick with the standard paper ones.

Thanks for all the input and opinions, very much appreciated.

Aye, Mick