K&N Air Filter on 110 2.5TD?

Would it be worth paying £30 for a K&N Air filter? I've just bought myself an F reg 110 2.5D and wondered if the K&N would have many benifits over the stock one.

Thanks
Tom

no - dunt waste yer munny

save yer pennies ter git a 200TDi fer it.

haha i wish but i'm only 17 and i don't have that much money at the moment, i just wondered if the K&N would make any difference to the car at all

not that you'd notice.

The thing i like about k&n filters are that they are easily cleaned, with a compressor and some light oil, so if you are doing the miles and depending on what you are using it for (wading etc) it can work out more economical than replacing standard filters.

Pros:

1. Will sound sporty (as in bubbling rumble, I have one fitted to my 2.5 n/a)
2. Will reduce exhaust smoke (which could help pass an MOT)
3. Will allow a higher capacity of air into your engine for more complete combustion of the fuel in the cylinder (slightly more torque, more mpg, less smoke)
4. Will allow you to cold start more efficiently

Cons:

1. Will really make your engine a lot louder (ie. twice the noise level)
2. Might require heat shielding to ensure that cold (more dense) air is drawn into the engine as opposed to less dense warmer air. (It's pointless if you're only drawing warm air in)
3. You will need to devise a support if you're not going to cut the standard air intake pipe down to fit (ie. 15CM or so)
4. If it gets splashed, you're engine will draw the water straight in so try and shield it somehow

Generally speaking it should increase your performance / mpg but I wouldn't expect to see any really noticeable differences in torque or speed etc. Mine certainly hasn't, but the sound is great!

-Pos

busaboy said:

it can work out more economical than replacing standard filters.

Click to expand...

With standard filters only costing a couple of quid even if you changed it every 5000 miles that's a lot of standard filters for the price of a k&n. Total waste of time imo.

pos said:

If it gets splashed, you're engine will draw the water straight in so try and shield it somehow

Click to expand...

Could this be solved with a snorkel?

Certainly could, but a snorkle has its pro's and cons too! They look good, but if you want to fit one it makes having a k&n filter a total waste of time. It wont sound as good as it would if the filter was close to the engine because the air intake is being restricted to a certain extent. You'd also have to fit the filter to the end of the snorkle in a mushroom cup or something like that, unless of course you can find some way to fit it into the pipe under the bonnet somewhere. Still, you might find this an easier method than tapping into the standard land rover air filter box!

Think i'll stick with the stock filter then, i'd rather havea snorkel and save some money.

BTW my 110 is quite old (1989) and i have no idea how long the original filter has been on, would it make any difference fitting a new stock one? if the one now is dirty and quite old

Thanks

1989 aint old! I got my 1986 2.5 N/A 90 last year (I was 17 then!) and even though they can really **** you off, they're generally a fantastic hobby most of the time!

With regards to your filter, I'd at least check it over. Undo the intake pipe to your intake manifold on the engine and then there's three little clips that hold the filter box onto the bottom plate. Flick them off (they might need bending back into place when re-fitting) lift the box off and there'll be a fancy looking tubular filter (fairly big) fastened inside. If it's clogged with crap, change it (they cost about 4 quid). If it's alright, leave it.

If the filter box is rusty mind, makesure that nothing flakes off around the joint that could get into the intake pipe and be sucked into the engine. I had this problem and the garage I bought it from had to surface the cylinder. It was still under warranty luckily

I wouldn't waste a penny on a K&N for a 2.5 NA, the engine suffers pumping losses at high speed so it gets to a stage it just can't do much more and a K&N ain't going to solve anything, by all means have a good clean filter but your kidding yourself on if you fit a K&N.

If I was you I'd bung in a new air filter and a fuel filter at the same time. If the old air filter is covered in oil and ****e you'll notice the diffference straight away. You can get a set of oil, fuel and air filters for about a tenner from paddocks or somewhere like that. Unless you're planning on doing some serious wading a snorkel is a complete waste of money. I bet 99% of people have them purely for posing reasons.

yeah i was planning on doing some serious wading so it would be handy,thanks for all the advice, greatly appriciated

I wouldn't waste a penny on a K&N for a 2.5 NA, the engine suffers pumping losses at high speed so it gets to a stage it just can't do much more and a K&N ain't going to solve anything, by all means have a good clean filter but your kidding yourself on if you fit a K&N.

Click to expand...

Technically it's not actually a K&N! It's a cheap rip off that I bought from motorworld but it does the job quite well. There definitely isn't any increase in power but there's less smoke and it starts a little easier (sounds quite good too).

yeah i was planning on doing some serious wading so it would be handy,thanks for all the advice, greatly appriciated

Click to expand...

With an older landy like your 110 19J you don't really need to worry all that much about deep wading because there isn't too much in the way of wiring and ecu's that can bugger up if they get soaked. You can certainly expect to get your feet wet (door seals aren't that good!) and you should check to see if your gear box and front and rear axles have breather pipes that extend to a level in the car where they wont be submerged in water. (Easy way to tell is simple look at front axle, can you see a nut with a pipe coming off the top of it somewhere?). If the back is the same, there's no need to worry about this, just go for it!

I've only waded twice in the floods (came just over the top of the wheel arches at most) and water started to come in through the door seals and up through the whole in my footwell. The dried out clumpy waxoyl on my chassis also got washed off!

thanks for the info. how deep can i go? presuming i have stock breaher pipes (i can't check now as the car is at my mates garage)

don't really know with stock breather pipes (that is if they even come with breather pipes), but technically you could take your landy as deep as you want providing the air intake is above the water!

wouldn't it do damage to the gearbox/axels if there weren't any breathers on though?

Yes because they would draw water in as the oil heats up and the breather opens to let the pressure out:
Extended Axle Breathers

at least this deep YouTube - Strata Florida, wales october 2005