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air filters

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hey guys, right im gona sounds uber stupied here right but - can some one explain to me the diffrence betwen an induction kit an a air filter? chatting to a guy on the phone today about my mates tigra an i was half asleep n he was talkin bout air filters, of which when i was awake got me thinking. so any help would b grand, cheers.

an i accept all fun that is poked at me for bein a complete novice. :D

right. first off hahar

now to the question. the filter is the part that cleans the crap out of the air going into the engine.

as standard you will have an air box, with a panel filter in it. this is a big old square filter that sits in a special box. this box will often have air flow restrictions and air mixing parts inside.

the induction-kit is still a filter, buts its a very free flowing one, that does away with the are box and all its pottentiol restrictions. this will allow the engine to breath more freely, and take better advantage of any other engine mods you add.

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i had a feellin it was that, honest. just double checkin,lol.

What i can't understand is:

If the induction-kit is supposed to be better

why don't car manufacturers fit them instead of the standard airbox filters?

Expense?

Noise volume?

Emissions?

Making boring cars?

Probably only work to their full potential with other tuning parts e.g. exhaust...

Then again im looking forward to racing anyone that thinks their car will shave a couple of seconds of the 0-60 (0-100) with just mounting a "induction kit".

Iagree with the fact that its needed when upgrading the engine in other ways. But if you get a big performance boost when changing to one on a otherwise stock car then someone really f***ed up when designing the original one.

But hell, i have it on both my cars but im the first to say that i didnt do it for the performance. Diffrent sound and a cooler look(under hood).

Many induction kits have cleanable filters and not disposables like the originals are. So thats a plus.

a standard are box has a mixer to mix hot air with cold, this helps to make the car feel the same from the second you start it on a cold morning, to when its running at full temp on a motoway.

i read somewhere that a drilled air box has an equal effect to fitting an induction kit...is this true or were they telling me porkies

can free the flow abit

an induction kit will give you approx 0% gain in power, but on the plus side it will relieve you of some of your hard earned cash

:iagree: :rofl:

I was thinking this morning... i need a new air filter in mine... i belive you can get like k&n ones that are washable so that i wouldn't need to buy another again...

Im just talking about a direct replacement for the original round filter not a k&n induction filter...

I've drilled one side my felicia air box, makes a bit of a nicer sound but the car can be hesitant on cold mornings, seems very slightly freer revving up the rev range tho

I've drilled one side my felicia air box, makes a bit of a nicer sound but the car can be hesitant on cold mornings, seems very slightly freer revving up the rev range tho

By drilling the airbox, you'll partially bypass any warm air intake ducting, which can cause petrol engines to hesitate (or in extreme cases causes "carb" icing) in very cold weather.

However, with a mapped EMS, you'll flow more air, and regardless of any comments to the contrary, the EMS will adapt for that by supplying more fuel, and burning more fuel will develop more power. Of course, because the engine will still run the standard advance curve, you won't get as much more power as a remap would give.

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what does remapping actualli do? an can it be done to a 96 felly?

Simply put, a map is a matrix which tells the engine systems how much fuel and ignition advance to use for a given set of engine revs, throttle setting and airflow.

Remapping changes the demanded outputs for a given set of inputs, but needn't be used to actually increase peak power. There are specialist maps which increase low end torque for towing, or even just remove flat spots from the engine.

With a non-turbo engine, a full remap doesn't tend to be worth more than about 10%, without a new cam, a ported head, and freeflow inlet and exhaust.

Why dont you spend the £30 quid that a filter would cost on a new set of plugs, oil+filter, airfilter and adjusting the valves?

That oughtta yeild a big difference.

Woodie is overdue his 5k service (by about 1k:thumbdwn::eek:) so that will be the order of business this weekend i think.

Leave the "air filter until you have the car requiring more air than the original engine needs.

If you go for a high lift cam, ported head, increased fuelling etc, then you'll need more air

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