Almost went down the cone route for my Leon FR but after reading this I think I will order a panel filter.
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Its when you take the top half off the airbox and smooth it so it's flat, taking out all the slats so the air has a smoother route. Take the top of your airbox off and you'll see what i mean
Open cone filters if placed in the engine bay will give more noise but you will loose bhp as the cone filter will suck in hot air from the engine bay. Hot air is less dence then cold air therefore less oxygen can be sucked into the engine.
You probably haven`t heard of people drilling the airbox as most people stopped doing something as stupid as that 10 + years ago.
For someone usually quite knowledgable, that's the stupidest thing I've seen you write
An open will be possibly 1-2 degrees hotter than a plastic airbox at the extreme.
This is then sent to a turbo where the heat will be over 1000degrees in some cases.
Then, it is cooled and put into the engine.
Now it varies car to car obviously, what with intercooler efficiencies etc but as long as you choose a cone which will allow more airflow than a panel, then you'll benefit
The density of the air isn't as important as people say. If the amount of air is great enough.
You run a carbon enclosed box and carbon isn't an insulator. So you'd be as well running an open cone
An open cone will be more than 1-2 degress hotter, ive seen various open cone arrangments fitted on various cars and an open cone next to the engine allways looses power, enclosed kits are poor for gains due to the fact that the box isnt big enough.they give slight gains but not much.
The best kits are either forced air or custom made, best bet on an ibiza is a panel filter with PD160 intake.
Open cones are good for noise but not much else unless there placed right, on my old car i had the induction hosing about 5 foot long with the cone in a open foglight, that isnt anywhere near the engine and proved big gains in bhp and torque, and open cone arrangment coming straight from the throttle and sitting under the bonnet lost 2bhp. A Pipercross viper on the same car lost 3bhp, theres various articles all over the internet explaining how inductions work.
Also after a certain point there isnt much point in having a big cone as the engine can only take so much air in at a time anyway, and if you want toqrue gains then you need big hosing anyway.
The best kits are either forced air or custom made, best bet on an ibiza is a panel filter with PD160 intake.
Open cones are good for noise but not much else unless there placed right, on my old car i had the induction hosing about 5 foot long with the cone in a open foglight, that isnt anywhere near the engine and proved big gains in bhp and torque, and open cone arrangment coming straight from the throttle and sitting under the bonnet lost 2bhp. A Pipercross viper on the same car lost 3bhp, theres various articles all over the internet explaining how inductions work.
Also after a certain point there isnt much point in having a big cone as the engine can only take so much air in at a time anyway, and if you want toqrue gains then you need big hosing anyway.
Sorry but that's just nonsense. Show me figures supporting what you say? Why would an open cone be hugely hotter than a plastic air box situated in the same position
I'm not quoting Internet heresy. I have the figures for a pd160 engine and an open cone flows more air than a panel filter
Even if the air was 20'degrees hotter in an open cone, the first thing that happens to it is the it gets superheated through a turbo.
If you want 100% accurate figures I can nip out and run a couple of logs
I dont have the graphs, but was there when it was done.
Im not saying anyone is right or wrong, if you can run some figures then do so, as will be a good insight for everyone i think.
I've been thinking of replacing my standard filter on my FR150 TDI and am now totally confused as to which way to go. I read that Jonjay put an Apexi oil less filter on his leon, not sure whether to go for a cone or a panel filter in the standard airbox?
I want to get that fruity diesel noise if possible, but have been told only an open cone will give this noise??
I want to get that fruity diesel noise if possible, but have been told only an open cone will give this noise??
Ive always maintained that an induction cone works if its put on right, ie. right location, with cold air fed in abundance 
more-so if your fueling is balanced to match. Then bigger figures roll off and benefits are noticed. Someone in the know once said a cone was only worth while above 200bhp. im happy with my cone, performance, sound and all
more-so if your fueling is balanced to match. Then bigger figures roll off and benefits are noticed. Someone in the know once said a cone was only worth while above 200bhp. im happy with my cone, performance, sound and all
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for what its worth, I fitted a K57i to my 2.0 TDI Octavia, and was warned about heat soak etc,
I got it cheap so figured it was worth a try, I fitted it and noticed a gain almost the whole way through the range, so I would say it definately works, but its a bit more hassle keeping a cone clean, although my car is mapped, so the bigger flow of air is prob where the benefit came from, I doubt it would make much diff in a standard 2.0 TDI
I got it cheap so figured it was worth a try, I fitted it and noticed a gain almost the whole way through the range, so I would say it definately works, but its a bit more hassle keeping a cone clean, although my car is mapped, so the bigger flow of air is prob where the benefit came from, I doubt it would make much diff in a standard 2.0 TDI
I've run a jetex and a green. Ideally you want an oilless filter. You need a 70mm neck and there's no real need to bodge anything. The green I currently run was less than £50
the 150 maf is 80mm mind
I've had the kn panel with a revo map, then bmc with revo then hybrid with it. Now I'm running a jetex open cone. TBH I've not noticed a difference from the cda to the open cone + or -
I think (just my 2p) that unless you've a hybrid a stock intake with a uprated panel is the most you need, doupt any extra bhp will be gained.
I've had the kn panel with a revo map, then bmc with revo then hybrid with it. Now I'm running a jetex open cone. TBH I've not noticed a difference from the cda to the open cone + or -
I think (just my 2p) that unless you've a hybrid a stock intake with a uprated panel is the most you need, doupt any extra bhp will be gained.
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Its all about air density and getting more oxygen onto the cylinders. Open cones in the engine bay don't receive air of the same density if the air is hotter. The hotter the air, the less dense. The less dense, the less oxygen going into the cylinders, and so reduced "bang". That's what its about. However - get some cold air onto that cone directly and you'll be getting the benefit. Some relocate the cone to the space behind the fog light grills, others put a direct air feed from that location upto the cone in the original airbox location. Just removing the airbox and slapping a cone in the gap would not get the benefit you'd expect. Do it right, and a cone is a good complementary mod to an exhaust/remap/hybrid etc. Just slapping one in and praying it works will only reap the seeds that you sow!
On our Mini Cooper S, the popular mod seems to be a cone filter in the original airbox base, with the top of the box off. That airbox is fed well with air though as standard so it is less likely to suffer from heat soak issues apparently. I've not tried it so can't comment on actual results though - but the forums on that car seem to rate it.
On our Mini Cooper S, the popular mod seems to be a cone filter in the original airbox base, with the top of the box off. That airbox is fed well with air though as standard so it is less likely to suffer from heat soak issues apparently. I've not tried it so can't comment on actual results though - but the forums on that car seem to rate it.
Hirdmeister
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i'm currently just toying with the idea of an induction kit... another post elsewhere stated a rattle noise coming from the airbox. this isnt exactly the case, its in front of the airbox, between the battery and the bodywork...
going to the garage next week to have it looked at, but decided if its gonna be more than the induction kit i have seen, gonna get the induction kit instead.
Its a standard K&N one for a 2005 Mk1 Seat Leon FR TDI 150.
Any comments? how easy / hard is it to fit?
going to the garage next week to have it looked at, but decided if its gonna be more than the induction kit i have seen, gonna get the induction kit instead.
Its a standard K&N one for a 2005 Mk1 Seat Leon FR TDI 150.
Any comments? how easy / hard is it to fit?
Well after fitting my jr cone filter tested it out on the way home legal speeds only through and results I found was at low revs was defo more responsive mid range felt slightly less responsive but once u hit 3.5k it really felt more power full and seemed to pull more through each gear. Noise wise it dont have a grunt tone at all unlike what u get with a petrol system but it makes ur turbo whistle like crazy u hear it build up and dump like it has a dump valve in fact I loved the sound.
Also after testing filter engine at full running temp for a fair few miles poped. Bonnet and cheaked the feat of the filter and around the side of it and the temp was still. Very low with leveing the standard pd160
Intake in place. So this heat soke people go on about ain't doing out intake temps will still be practically the same will carry out more test as I go on this was just a qwick trail will post up when I find out
Also after testing filter engine at full running temp for a fair few miles poped. Bonnet and cheaked the feat of the filter and around the side of it and the temp was still. Very low with leveing the standard pd160
Intake in place. So this heat soke people go on about ain't doing out intake temps will still be practically the same will carry out more test as I go on this was just a qwick trail will post up when I find out
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