[Discussion] Technical - Air Filter

[Guest eraone]

Re : K&N Air Filter

 

Anyone installed on ur s4? What are your comments?

 

Anyone interested to mass order? Roughly how much?

[E-DEAD]

Anyone installed on ur s4? What are your comments?

 

Anyone interested to mass order? Roughly how much?

 

 

Look @ my Avatar ... It Great

[E-DEAD]

K&N's special patented material permits more air flow to the engine than stock filters, with no loss of filtration efficiency.

K&N air filters last practically forever.

Filters come ready to use. They just need to be cleaned each 15000-20000 km

 

 

Improve Air Flow

Improve Throttle Respone

Improve Milage

Improve Hp (haha which state on e Box )

[MrLau]

Improve Air Flow

Improve Throttle Respone

Improve Milage

Improve Hp (haha which state on e Box )

 

And you can clean/oil the K&N filter, whenever you feel you like it...

 

[E-DEAD]

 

And you can clean/oil the K&N filter, whenever you feel you like it...

 

 

all you just need is the K&N Air Filter Recharger Kit

[Guest HondaSF]

QUOTE ("E-DEAD")

all you just need is the K&N Air Filter Recharger Kit [/b]   What is K&N Air Filter Recharger Kit for? What e porpose? Can give me more info...Thankz

[E-DEAD]

 

What is K&N Air Filter Recharger Kit for?

What e porpose?

Can give me more info...Thankz

 

http://knfilters.com/images/99-5050.jpg

K&N Recharger Kit for:

 

Cleaning the Air Filter and Re Charger the Filter

 

Instruction on Cleaning K&N Air Filter With ReCharging Kit

Click on me

[BD]

edead, lau cheh, wahahaa u guys machaim like advertising sia.

plan to get it install soon. wats the price range?

[ooniq]

do we need to retune our bike after change to k&n air filter?

[smokin]

edead, lau cheh, wahahaa u guys machaim like advertising sia.

plan to get it install soon. wats the price range?

 

mah at Jln Besar giving a good and reasonable price. forget how mucho liao

[chaicka]

 

mah at Jln Besar giving a good and reasonable price. forget how mucho liao

 

Izit?

 

If go direct to distributor leh, should get better price if u guys mass order or bargain for it.

 

Btw, even on Phantom, self-modded K&N air filter made a difference.

[Guest ZZR-Pilot]

I wan..! I wan..!

 

But plan to fit together with a hi-flow aftermarket exhaust. Maybe mid next year.

[smokin]

 

Izit?

 

If go direct to distributor leh, should get better price if u guys mass order or bargain for it.

 

Btw, even on Phantom, self-modded K&N air filter made a difference.

 

i'm not to sure about the distributor though, but mah has always been giving reasonable price to most products than most places.

[ekin101]

I fix mine at mah motors previously at about $60-65. Can't remember the exact price.

[blurrblurr]

they selling for $70 claiming now that the K&N filter price raise so had to sell so ex

LAB selling $62 only! dunno chiong one or not. wonder how they do chiong filter

[ekin101]

they selling for $70 claiming now that the K&N filter price raise so had to sell so ex

LAB selling $62 only! dunno chiong one or not. wonder how they do chiong filter

 

The autie always quote at a higher price. then I went to ask jeffery and he gave me slightly better price. Then autie scold him.

 

If you tell her LAB selling cheaper, she would say they chiong one and go ahead and try their 'KNN'.

 

I previously hear that HKL selling quite ok price. Maybe can try?

[marvypower]

 

The autie always quote at a higher price. then I went to ask jeffery and he gave me slightly better price. Then autie scold him.

 

If you tell her LAB selling cheaper, she would say they chiong one and go ahead and try their 'KNN'.

 

I previously hear that HKL selling quite ok price. Maybe can try?

 

So really got chiong ones ah?

[smokin]

 

So really got chiong ones ah?

 

where got chiong K &N filters, maybe other types i believe. whenever u go mah, dun ever tell them about ahboy, they damn dulan one and won't giver u discount

[slowrider]

 

if after having more airflows lean up the air fuel ratio from pilot circuit to needle all the way to main jet, how ar? still horse power gain?

 

anyway free flow also means a dip in air pressure.....if u know how carburator work, u probably can figure out wats gonna happen and wat need to be done to correct it

Use the K&N fliter that goes with the stock air-box. Only certain models of bikes (most bikes are catered for) have a K&N filter made to fit into stock air-box.

Might need to do minor adjustment to carb if top-end feels leaned out but most bikes it is a fit and ride thing!

[ekin101]

 

So really got chiong ones ah?

 

hehehe... don't know leh..

[ctk333]

il4 wrote:

if after having more airflows lean up the air fuel ratio from pilot circuit to needle all the way to main jet, how ar? still horse power gain?

 

anyway free flow also means a dip in air pressure.....if u know how carburator work, u probably can figure out wats gonna happen and wat need to be done to correct it

 

Use the K&N fliter that goes with the stock air-box. Only certain models of bikes (most bikes are catered for) have a K&N filter made to fit into stock air-box.

Might need to do minor adjustment to carb if top-end feels leaned out but most bikes it is a fit and ride thing!

 

 

 

This is something that is still puzzling me. Is the K&N a fit and go thingy or rejetting is really needed? If more airflow is is created, wont the air fuel ratio be more lean as stated by il4? I had ask a couple of local motorshop b4 regarding this issue, they claimed no rejetting is needed after installing a K&N. IMO, I think rejetting is needed to obtain the correct air fuel ratio because the bike is running more lean now. Who's right, whose wrong? Any advice and comments?

[slowrider]

il4 wrote:

if after having more airflows lean up the air fuel ratio from pilot circuit to needle all the way to main jet, how ar? still horse power gain?

 

anyway free flow also means a dip in air pressure.....if u know how carburator work, u probably can figure out wats gonna happen and wat need to be done to correct it

 

 

 

 

 

This is something that is still puzzling me. Is the K&N a fit and go thingy or rejetting is really needed? If more airflow is is created, wont the air fuel ratio be more lean as stated by il4? I had ask a couple of local motorshop b4 regarding this issue, they claimed no rejetting is needed after installing a K&N. IMO, I think rejetting is needed to obtain the correct air fuel ratio because the bike is running more lean now. Who's right, whose wrong? Any advice and comments?

 

Answer is Yes and No. More confused? Depends on the bike you are refering and whether it is high performance or standard road bike.

 

For standard single or twin cylinders it is almost a fit and go thing. But if you are refer to bigger bikes and newer high performance bikes then you would need to do some re-jetting. Or for some big bikes, there is a package jet kit recommended though not mandatory that you use when you fit the K&N filter.

 

I am no expert for the big bikes tuning. Maybe you can contact Sporting Motorcycles at 63960230 and ask for boss man Joe. He will definitely clear out your doubts!

I

[slowrider]

 

the law of physics applies to every bike with disregards to to CC.

 

Your favorite subject Physics at school? Got an 'A' for it right?

[Guest Tird Kenobi]

12.5:1 when stock.

 

>12.5:1 after installing aftermarket air filter.

 

Retune bike.

 

12.5:1 ratio with aftermarket airfilter.

 

 

 

In the end, get back same air/fuel mixture ratio, yet, performance improved? Something else happened in the process?

[Guest Tird Kenobi]

 

LOL, dude, its more then wat u think it is....

 

Its a tedious process of finding the right jet size, needle position etc.....

 

Synchronising have nothing to do with air fuel ratio, its to deal with vacuum....

 

 

is it to make the rate of combustion faster? instead of 12.5:1 now at the same given amt of time, it takes in 25:2 or 50:4(ratio same but more combustion?)?