K&N air filter

I have an idea of fitting K&N air filter in my Swift VDi. What are all its benefits and drawbacks? How much will it cost(approx)? Will it boost power?

Air filter will never make an extra ordinary performance or power.

The purpose of adding is to improve the Quality of air used for combustion.

Ya it surely increases your torque at low rpms & u can even gain an slight increase in Mileage :cheers:

K&N Air filter Costs about Rs.4950 in Chennai.

Advantages

improved performance in the low end slow moving traffic
notable difference in performance
Increase in Mileage

Disadvantages

I Dont see any!! Since you are just going to replace ur stock with K&N.

:afro:

Thank you for the reply. But I've heard that K&N filters reduce FE than normal under hard driving.
Is it to be replaced upon every service? Because 4950 seems expensive.

Any Filter reduces FE under hard Driving.

Ya its obviously true... Every product has a worn out period & so K&N Filters even will have it.

It depends on how many Kms u Drive..?

What i'm trying to tell is, K&N filter returns less FE than stock air filter under hard driving.

i dont think that it will return less FE than stock filters under any riving condition. the FE will be more but marginally. K&N filters also change the sound of cars, again marginally. it is more noticeable in bikes.

Will it change the sound of engine? or exhaust sound?

engine sound, not exhaust. hence its more audible in bikes.

If you want to change the sound without any such mods ,then Sound Booster is the best option! :bball:

Does installing K&N filter void warranty?
What is a sound booster?

warranty- it depends in the manufacturer, i dont think it should!

@raj_5004 - Buddy.. I hope CC means Insurance & Carz Warranty .... not the parts Warranty...

@CC - No Buddy.. It will not be void.. Don worry.. U are jus upgrading an stock part... This doesnt play an crucial rule in Insurance & Warranty.

yes, even i meant the car warranty ! :o

But what is the prime benefit of spending nearly 5000rs for an air filter?

Think Buddy !! :lol!:

Crazy cat wrote:I have an idea of fitting K&N air filter in my Swift VDi. What are all its benefits and drawbacks? How much will it cost(approx)? Will it boost power?

Hope you only started the thread??


I mean with what expectations you had an idea of adding up K&N Filter to you Swift??

Think Buddy !! :lol!:

Crazy cat wrote:I have an idea of fitting K&N air filter in my Swift VDi. What are all its benefits and drawbacks? How much will it cost(approx)? Will it boost power?

Hope you only started the thread??


I mean with what expectations you had an idea of adding up K&N Filter to you Swift??

MOD'S NOTE (RoadRocket): Please refrain from multi posting.

Yeah buddy I started it, but I had no idea about it at that time. I came to know about it from you all guys. After your guys explanation, i'm now thinking why to spend for it.
I thought that FE and power will increase by 30%(my friend said like this).

Oh.. Ok Buddy !! 8)

I hope your friend was jus trying kidding kind of stuff...

There are no ways to improve a Cars FE & Performance by jus Adding an air filter..

Wat you can expect is around 3-5% of FE & Performance.. :D

This is reproduced from a thread by Manish in the ACI forum
"The main difference between a stock and performance filter like the K&N is the amount of air that passes through it."

Having heard about K&N and also having seeing
some under bonnets, merely wondering if they really worked wasn't good
enough anymore. It was time for some action and we decided to find out
if an air filter could indeed deliver more performance as K&N
claimed. Testing the K&N box replacement filter on a Maruti Swift
would provide us with the answers, we figured.
The main difference between a stock and
performance filter like the K&N is the amount of air that passes
through it. While stock filters are more restrictive, an aftermarket
performance K&N filter allows more air into the engine.
More air and more oxygen are the essential
ingredients of performance tuning. Simply put, more air into the engine
means the fuel injection system can deliver more fuel, which means more
combustion and thereby more power to tarmac. That's the theory at
least. But what we wanted to find out was how a K&N supplies more
air without letting more dirt into the engine.
The fact that it is made of cotton gauze bathed in special oil and not from cheaper paper, like the original part, helps.

Furthermore, the design of the filter and the
cotton ensures a higher airflow is maintained while continuing to
provide good filtration. Car manufacturers usually cut costs by not
installing these types of filters. To keep costs down, OEM filters
generally use paper or foam elements to filter out dirt. With the
K&N filter, all you do is wash and re-oil and it is ready to go
right back into your car.
K&N claims the filter can be serviced 25
times and normally recommends a service interval of 70,000 km. However,
dusty conditions in India mean a service interval of 35,000-45,000 km.
Coming back to what we set out to find out. Does it work? Does it make your car quicker? In a nutshell, yes.

The K&N filter allows more air to flow into
the engine all through the power-band, and this means that more fuel
can be burned. However, don't expect a huge improvement. The
replacement filter is the mildest type here and you have to really look
for improved performance.
Also, our Swift didn't feel quicker with the
K&N straight out of the box - the filter needed to be used for a
few days before it really opened out, and it's only then that we felt
the slight bump up in power and experienced top-end responsiveness.
The flow of power was smoother, performance
was delivered easier and we found a mild improvement in flat-out
acceleration as well. If you're the kind of driver who likes to wind
the motor up on a regular basis, you will appreciate the subtle
difference a replacement free-flow can do for your car.
The K&N filter is a nice thing to have but
to really make the most of it, you have to slap on a free-flow exhaust
too and do a mild `chip' job. Porting and polishing the cylinder head
will help too.
This filter offers long life and that's what's
bound to endear it to people. At around Rs 4,590 for the Swift's
filter, it costs substantially more than the regular filter but the
fact that it is reusable should put all your fears to rest. Also, don't
forget the marginal gain in performance. (As per our article in The Hindu)
FRG


True a K&N filter alone will not translate into more power. But the
long term effect on the engine remains to be seen.
FRG


The tests prove and show constructively that more dust is ingested with
K&N as compared to stock paper and felt filters, now in my book,
dust contains silica which acts as emery, and emery as well all know is
abrasion, the very pistons and ports used in the engines are polished
and cut with emery.
Gurkha

K&N filters last for the lifetime of the car in most cases.

Thanks for sourcing this article anjan. So it is worth an investment, as it doesný need to be replced and serviced once in 35000kms, that's good actually.
But what about FE, can I xpect a notable change in FE?(I know zinam and raj said improved FE, but how much gain can be spotted)


@vibhor, what is a sound booster?

Excellent work anjan buddy!!clap

@CC , buddy, even i don't have much knowledge of sound booster, but i heard of this in some auto show, that its for the people who don't want to do serious mods, can get feel of sports car by adding sound booster! :bball:

anjan wrote:The tests prove and show constructively that more dust is ingested with
K&N as compared to stock paper and felt filters

If more dust is injected with K & N, then how will the engine perform better? Won't it (the extra dust) damage the engine?
Please justify.

Yup!good point, Even i want to know this.

sudeepd wrote:

anjan wrote:The tests prove and show constructively that more dust is ingested with
K&N as compared to stock paper and felt filters

If more dust is injected with K & N, then how will the engine perform better? Won't it (the extra dust) damage the engine?
Please justify.

there seems to be something wrong in this. as to my knowledge K&N filters are used to improve the airflow and not increase the dirt flow. would be nice if someone could explain.

Hello everyone.

@ Cray Cat: Bro first of all K&N filter does not reduce fuel economy. In your Swift Diesel you can put PETE'S GREEN COTTON FILTER or K&N APOLLO FILTER. The main advantage of this filter is that its increases the low end torque of your car. It does not requires to change your filter in every 5000 kms. Its life is more than 1 lac km....
2nd Post
In diesel car it is not advisable for putting Free Flow Exhaust as it will deceased the performance of the car. Free Flow Exhaust are only for petrol cars.

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