For me, what I heard is:

Open Pod Filter provide more horse than Drop-In Filter but FC becomes higher than normal, Drop-in filter provide less horse power but better FC...

Is this true? Anyone plz correct me...

Open Pod Provide 13-14BHP....how about Drop-IN?

For drop in filter you do not need any extra modification, just drop it in like your OEM filter and you are ready to go.

As for open pod a.k.a. mushroom type filter, a lot of things need to be taken into consideration to extract the full potential.
You need to install a proper heat shield to shield the filter from the heat generated by the engine, if not the air filter cannot be run at its maximum capacity.

Final consideration is that how much you willing to spend and what is the gain in horse powers you looking at

This post has been edited by quiksilve: Jul 5 2007, 05:30 PM

OPen pod provide higher air flow to engine, while drop in is lesser.
but the air flow noise will be loud if using open pod......

for performance increase, open pod is better choice
but you said 13-14BHP increase, i think is too difficult........

where u get the figure adding 13~14BHP?
i think it add barely 5hp

13-14 hp is too much man ... i dun think that is possible...

nope.... drop in is around 2- 4 while open port should be 5 - 8... 5 - 8 also depends how u set up ur open port.... if u suck more heat rather den cold air which is also useless...

Some Open Pod Air filter will harm your engine. While I heard some said that, K&N Drop In Air Filter also can work well as those open pod air filter. Open pod air filter will cause FC increase a little bit but more power. I wanna change to open pod air filter, but the SC don't give me change cause will void the warranty. Cause those open pod air filter sucking more air that stock drop in so it will harm the engine.

13-14hp? if you are running a high displacement or turbocharged vehicle, you could see those gains. but on normal engines, very very unlikely

if its a turbo, then 13-14HP is logical
For NA, u get 5-6HP also happy adi

once you got open pod....you mod will be go on to get full potential of the open pod.

it's like PC, if your motherboard is cacat but you got super cun display card, the display card can't performed at full potential. So you must upgrade motherboard, then later need to add Ram then bla bla bla...the list goes on...

what are u trying to imply here

"The quest for more power nvr ends"... That's a motto i bring since days of overclocking pc all the way to now with playing cars pulak

hahaha.... actually both is the same lar... both using the same filter element... jz that how it mounts and so on...

open-pod
ppl say it FREES UP (not give) more horses because at high revs, the air flowing in is not restricted by the shape of ur airbox.... thus, u'll get smoother revs at high revs...
but the disadvantage of it is, it is exposed to the hot temperature in ur engine bay.... this can be solved by using heatshield and cold air intake...

drop-in
direct replacement into ur airbox... thus, all the factory setup cold air intakes and snorkle can reuse again.... good, no need headache go do heatshield and cold air intake adi.... but at high revs, its kinda restrictive due to the limitation of airflow inside ur airbox....

applications...
if u want to go further in car modifications.... if ur driving style is mostly at moderate n high speed... try go for open-pod....

if u jz wan abit increase in horsepower and ur driving style is around town area with lotsa low speeds and stop-go, use drop-in....

ok??...

ok boss

what about cleaning the filters? some are reusable. but how many cycle can they last?

open pod, u try getting stuck in KL jams on a sunny day and see


or try going thru flash flood areas

nothing wrong with that.. ii get stuck in jam everday well, nothing out of the odinary ...
eh,kacang, my car height higher then yours, so no problem

your 4WD ler....

we talking about cars


anyway i am using drop-in, gave up open pod idea.....
too much hassle for such a small gain

Usually I prefer Open Pod, but it gives higher FC....how high? Do u know?

http://www.mkiv.com/techarticles/filters_test/2/
c this....
Yeah i know this...how much does it cost for heat shield n cold air intake?

K&N can work like Open Pod? sure or not? I wanna try leh...



I know, so open pod then must change the whole extractor, exshaut etc mah..





Mmmm...icic, I guess i take drop in then....coz dun REV, just want low end power more...





Wat r u trying to tell?

open pod will not give u that much of a gain la...
realistically a gain of 6-8HP is achievable... anything more and you are lucky...

what i mean is that open pod is almost useless in a jam on a sunny afternoon, u lose power and consume more fuel


and when flash flood area, if u have a CAI and u did not secure the intake correctly, water will masuk all the way until your engine..

i know of one case where that fella neo engine koyak because masuk water.....

How much u willing to spend.... u can do the whole open port with heat shield cheap or expensive.. as cheap as 500 bucks also enough.... as much as RM1k and above also got.. speedworks charging around 700 for knn open pod and they heatshield...

David,
The gains are based on a percentage and usually around 5% for turbos as the original factory filter is too restrictive for the engine. The impact is less on an NA engine, which is around 1-3% improvement.

The link that you provided on the above test is done on a Supra, with a base HP of 280HP. A gain of 5% is around 14hp, which is about correct. If you put the same filter into a 110HP 1.6 engine, you will only see a gain of 1-3HPs.

This post has been edited by sleepwalker: Jul 6 2007, 09:10 AM

basically washable ones such as K&Ns last for a lifetime, as long as it doesnt tear or physically damaged....
as for HKS ones, they are not rewashable... u need to change the sponge once it gets dirty...

so, i would also recommend u to get washable ones such as K&N or Apexi....

i would suggest u to get branded testified air filters such as K&N, Apexi, HKS, Blitz and so on.... dun waste ur money on Monza, TypeR and so on...
as for heatshield and cold air intake... those u can diy install them as they doesnt require great engineering calculations and workmanship to achieve... understand how the air circulates around ur engine bay and how air flow works, u can do wonders with ur own hands...

U sure or not? FC won't be higher?

yes... FC wont be higher if u retune back ur AFR mixture....

if use drop in filter on kancil carb, there is a problem where the engine oil always leak up into the stock air box. Damaging the air filter most of the time. Anyway to prevent engine oil from flowing up to my kancil stock air box?

Actually it will, just that it is not dratic that you suddenly lose 50km on a full tank. If you do not have a piggyback to tune, it may not increase but the powerband is erratic. But with a piggyback, more air requires more fuel. Look at your piggyback settings and you will note they will more than always +1 or more in fuel. But like I said, it is not drastic.

My piggyback + all others that I've seen +fuel, rarely -fuel.

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Added on July 7, 2007, 9:30 am OEM filter inside airbox, cannot be seen, so no point looking nicer

This post has been edited by matthewctj: Jul 7 2007, 09:30 AM

of cos i am very sure. before i went into car modding, i heard all these stuffs, open port high FC, auto gear not suitable for straight flow exhaust, VS & grounding can increase power blah blah....the lesson i learnt, actually until u tried out all those mods urself dont draw conclusion as others told u. Now i understand all these stuffs only after i tried out myself.
Frankly speaking, u will only noticed higher FC after u bump up ur compression, change high cam, port polish & retune the ecu. Now my 1.8L RM70 only can go 250km.

but if automatic transmission, its better not to use open pod~~
My friend 1.5 Auto stock comes with it, former owner install, no pickup and drink a lot of fuel, power comes late.

Anyone install Drop-in??? Wat I wan is normal dirving...not high rev....now the low end power is really died.....2002 gti mah...ecu is siemen 1....the air filter...wira 1...wtf...

Open pod will cause high FC? I use my FC improved wor...no bullshit

mine dropped a lil bit during rainy days .... haha ... but then someone explained it back in one thread sometime back .lol

For those whose FC get higher with Open pod, how much difference wud it be? how much lost per full tank?

its engine oil or fuel that leaked to the airbox??... did ur engine jerk whenever u switch off ur engine??.... if yes, ur ignition timing too advance adi....
what happened is the ignition switched off and ur engine is still pumping in fuel... the fuel floods the combustion chamber (coz no spark to ignite it)... it overflows and pushes back upwards towards ur TB, thus leaking into ur airbox and damaging ur air filter....
get ur engine tuned... there shouldnt be any problem....

haha... agree agree
my car fc improves after changing to open-pod air filter.....

With both from k&n, same manufacturer but drop in not so efficient...I noticed reaching higher speed in shorter time and better response with open-pod.

maybe not recommended for underpowered auto cars....

On my experience on installing the drop in into my myvi (blitz sus air filter) does makes an improvement to my car, with better throttle response at lower rpm due to improvement (although minor) to the torque.

Unless if u really want to improve low end power, i suggest u go for an extractor change rather than air filter. 4-2-1 extractor will definery improve the low-mid range power.

my car(old iswara) jus changed 2 k&n drop in.. it actually give more lower end torque n betta throttle response.. lower fc.. the diff is noticeable.. worth it..

lower fc not much noticeable for me.coz when u changed ur filter,u'll intended to floor ur pedal more.haha...

My car , GTi extractor is 4-2-1 ad....wat's the point to change to 4-2-1 again? Or u mean to make it longer... like 4--2--1....?

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Added on July 8, 2007, 4:52 amHaha...dat's ur Problem loh.....if like dat..use wat filter, ur FC oso high la...

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Added on July 8, 2007, 2:22 pmI hav a question here....

Is open pod filter washable?

This post has been edited by DaViDcHiN: Jul 8 2007, 02:22 PM

I knoaw only 2 open pod that can be washed. K&N and Blitz's SUS

Hah? Means Apexi cannot be washed?

as far as I know cannot la. After awhile must change the filter

icic....-.-"

No wonder K&N so expensive la....

Since u have aledi say that u have a 4-2-1 extractor, maybe u go for quality 4-2-1 extractors from reputational exhaust house like JFA, hotbits or powerzone, but i cant guarentee whether it will make tremendous improvement for ur ride.

For that, tuning the ECU using an aftermarket ECU might help, just tune it to have more power on low-mid range and that might help.

Another idea which i can think off is using S flow exhaust.

Guys, what bout top speed?

I heard Open Pod will decrease for top speed, but improve pick up.

While for drop in, pick up also improve, but just a bit compare with Open pod, but top speed better than open pod?

Am I serve with the right info? Feel free to correct me~

but i heard tat althought k&n open pod can b used forever but after quite sum time in the engine bay, the filter will have defect(mayb melt) due to high temp in the engine bay.. so oso need 2 change new 1..

top speed improvement is a bonus...

usually there will be some improvement but usually its in the region of around 10-15km/h speed increase..... anything more its a bonus..

want more speed increase, go do your exhaust...

OMG....all in all..it cost a bomb to increase the BHP....better put turbo....

^^Then you have to worry about JPJ after that.

What do you expect from a NA engine? The nature of NA engine is pure strength from the engine, unlike turbo where you need to bolt on. The good thing about modding NA is, you can mod anyhow you like and of course it will cost a bomb.

So if you are craving for easy power, just go turbo

This post has been edited by shinjite: Jul 9 2007, 01:37 AM

aiyo... change filter also can make so much fuss.... hahaha....
if u go for turbo still also need to put air filter ma.... dat time create another thread asking "turbo cars use drop-in better or open-pod better" meh??....

In conclusion, to get more power for the car, either using forced induction or NA, alot of money is needed. There no such thing a bang for buck modding. Great power comes great responsibilities (injection more money to be good parts, maintaining it, more money for fuel) my fren

This post has been edited by travis_ckf: Jul 9 2007, 05:11 AM

blitz SUS shiok la

i washed mine, but must spray from inside out & leave it to dry. only can use water not air pressure

How low is the FC?

before it was full tank for 300+km den after installed d k&n drop in is around 330+km (city drive).. it even better when drivin on highway!

-.-" full tank 300km...

My iswara...sometime 280km, sometimes 350km....

driving condition same....always rev it.....city driving only.....

Mmmm..anyway....erm.....so b4 u install it...everytime u full tank the most can go 300km only? so after installing u can go 30km futher izit?

it not given better acceleration only? increase the mileage also?

^ semua cheong's stuffs, no wonder so familiar XD

what is the "cheong" here means?

erm previously everytime full tank go around 300+.. mine also an old iswara.. after installin can go further lah.. me seldom rev lah jus normal speed around city..

yeah it does improve d mileage coz u rev little can go fast d.. haha..

hahaha... he busy his monster project... i help him post to sell lo... hehe.... anything u wan grab?

What brand of drop in filter giv more BHP?

my fren... there r so many brand u can think about...
k n n... hks....zenden... depends on you la...
drop in filter brings higher air flow than ori 1...and can tahan lama...
and looks cool... red...
so far... ur gti now become a monster oredi....

i n biscuit cannot follow ur gti liao lo....

k&n would b the better choice cuz its reuseable.. hks has d performance but bad filtration n cant last long.. correct me if im wrong.. hehe

N/A GTi = monster!?

Yes, i know this, for me, I prefer performance more than other things, so I am considering HKS,

HKS can last for 3 years, while K&N last forever with regular services....

HKS filtration is bad and is not meant for daily use. Furthermore, there's no performance diff between them, not enough to be shown on a dyno chart, esp if your car is less than 200hps. However, the difference in filtration is big.

^ true on that~~
I rather go for good filtration ones plus giving out more or less the same HP gain

i read in an article, actually drop in filter wont give u extra hp or torque gain. Since u just put in the filter box, it still remain as restrictive as before, the slightly better flow of filter wont let u gain much. open port still way to go with proper heat shield and cold air intake.

Wat article? Can prove me?

last year or 2 years ago, hypertune got an article on it. Of cause can proof, buy a new drop in filter can run on dyno lor.