View Full Version : Air Filter ?
HRV-80Y
08-10-2004, 12:44 AM
hey guys jus wondering wat EXACTLY would d difference b between an aftermarket air filter n say the stock one ?
more kw's haha ?
nicer sounds ?
nutn at all ?
bluebird
08-10-2004, 12:55 AM
The primary advantages of an aftermarket air filter are:
a) Re-useable
b) Better flow than the stock item
Depending on the setup, a replacement panel filter generally doesn't make more power, but rev's smoother. (Some will argue it might gains half a HP, but I feel it's not a measureable power increase - you'll gain more dyno'ing a car on a cold night).
A replacement POD filter can be either beneficial or a step backwards depending on the installation, main factors being:
a) Cold air intake
b) Placement of the filter
The biggest rule with all air filters is colder air + less resistance = more performance. People often put a pod on, rip out the standard air box, and think it goes better because of the sound, whereas this isn't the case at all. The hot air from the engine bay decreases the performance.
Oh, and yes, the sound is always addictive.. air sucking in sounds better than nothing at all. A VTEC engine with an open air filter sounds friggin fantastic...
Hope this has been some help.
Regards,
Bluebird.
HRV-80Y
08-10-2004, 01:02 AM
fanx bluebird shit i duno if i got any questions left haha = ] cheers !
bubblecivic
10-10-2004, 11:40 AM
i don't think this is possible with carbys is it?
People often put a pod on, rip out the standard air box, and think it goes better because of the sound, whereas this isn't the case at all. The hot air from the engine bay decreases the performance.
Objection!
Well considering that a stock honda airbox sucks in air from the engine bay anyway, I don't see how a pod would decrease power. Honda's design draws air (just as hot) from the engine bay through tiny resonator piping, into the airbox, through a restrictive paper filter and on into the engine (Well on my EJ anyway). A pod just strait sucks air strait in. Im not saying you gain 20kw. That would be stupid. But my VTEC is definatly more 'good' now.
This topic has been covered millions of times thou.
nah stock doesnt suck up from engiene bay ... there is a small pipe that leads air in from somewhere near the right fornt wheels...
J-MuN
10-10-2004, 09:16 PM
People often put a pod on, rip out the standard air box, and think it goes better because of the sound, whereas this isn't the case at all.
hey bluebird...
if you say the airbox keeps the filter from intaking cold air, wouldnt the airbox work as a heat absorber?...as the box is enclosed..
and also, i got a mugen airbox and you reckon if i take the airbox off i will lose some hp?..considerable difference?..cos i'm thinking of an apexi filter as i've heard it on my cuz's k20 but i mustnt forget, an apexi on a k20 compared to a b16a2...
joneblaze
10-10-2004, 10:13 PM
Try driving around for 20mins with your stock airbox cover off. :)
J-MuN
10-10-2004, 10:21 PM
Try driving around for 20mins with your stock airbox cover off. :)
hahaha, SOOOOOO tempted but cant be bothered... HUGE immense difference?.. if there is, i'm gonna lose some gains in the top end right?... :( not sure if i'd sacrifice the loss of power for the sound.. i got a couple dc5's to smoke.. kekeke
bluebird
10-10-2004, 10:38 PM
Objection!
Well considering that a stock honda airbox sucks in air from the engine bay anyway, I don't see how a pod would decrease power. Honda's design draws air (just as hot) from the engine bay through tiny resonator piping, into the airbox, through a restrictive paper filter and on into the engine (Well on my EJ anyway). A pod just strait sucks air strait in. Im not saying you gain 20kw. That would be stupid. But my VTEC is definatly more 'good' now.
I'm not sure the particulars of your model, but it seems most Hondas have a cold air pipe from the front bar that leads to the bottom of the air box. Tiny or not, it's still "enough" air. If it wasn't, Honda would have designed it to flow more, and hence had more free power. A POD by-passes this cold air intake, and just sucks in warm air from around the engine bay. I'm not sure how noticable it would be in colder weather, but it will be very noticable in the middle of the day during a hot day.
But I see what your saying - I look at it in that the more restrictive cold air from the standard intake pipes is better than a less restrictive hot air in the engine bay.
Maybe someone with more practical experience can answer this in more detail as to which better.
joneblaze
10-10-2004, 11:02 PM
I felt a distinct lag in throttle response with the stock airbox lid off. That's all i know. :)
I'm not sure the particulars of your model, but it seems most Hondas have a cold air pipe from the front bar that leads to the bottom of the air box.
Na man, my design is retarded. :) I took off my front bar to have a look. Air is sucked from the engine bay to start. A pipe then runs down into the front bar with some usless box chamer hanging off it, it then does a 180 turn and heads back up to the bottom of the airbox, its ****ing a waste of plastic.
My car is a EJ8 Civic coupe (EK Style).
So basically what i was saying in my case is.
STOCK = Restrictive hot air.
POD = Free flowing hot air.
I think honda designed it this way to achieve less audible induction noise.
JINRAI
11-10-2004, 03:51 PM
hahaha, SOOOOOO tempted but cant be bothered... HUGE immense difference?.. if there is, i'm gonna lose some gains in the top end right?... :( not sure if i'd sacrifice the loss of power for the sound.. i got a couple dc5's to smoke.. kekeke
haha...i ADMIRE your determination
pods suck.
get a drop in filter for stock box and then make a CAI with some plumbing and ducting, HRV power yo :)
the pipe thingy everyone is talking about is the resonator
yup, in the EK it does a 180 from air box back into the engine bay
as i've heard, it supposed to reduce the "induction noise"... correct me if i'm wrong
HRV-80Y
11-10-2004, 04:43 PM
hahaha hmmz i'll post pics of my setup when its finished... = p got the parts just gota put it in...
Apple
11-10-2004, 04:56 PM
what about fuel? Being able to breathe better, does a pod burn a little more fuel? Or is it the same?
thanks
Alan
Usual Suspect
11-10-2004, 05:29 PM
i don't think this is possible with carbys is it?
I just put a post in the technical section about this. i wanna put a flashing looking cai sort of setup on my carb. Im not game enought to remove the whole airbox yet but i was thinking of taking out the air filter in the round aibox and put a pip with a filter to the front of the car.
the resonator is actually referred to as a 'fresh air' induction. loose it.. just holesaw/bore out the airbox opening and save ur money on the pod.
what about fuel? Being able to breathe better, does a pod burn a little more fuel? Or is it the same?
thanks
Alan
Hmm I dunno, but you would think if the engine can breath better then it requires less effort to make power sort of. All I know is that I get same Fuel Milage. But you can be tempted to VTEC more often because of the mad induction noise, which hence uses more fuel.
HRV-80Y
12-10-2004, 04:26 PM
ARGHHZ FARKK !! whoz got a big electric saw lol i need 2 cut my pippin for my cool air intake pippin...its too friggin high lol need to shorten it otherwise would of put it in by now....
anyway here's some pics of the engine bay currently stil wit stocko air filter n pics of my parts n peices of the cai....
http://members.iinet.net.au/~mr6ixty9iner/HPIM1248_resized_resize.JPG
http://members.iinet.net.au/~mr6ixty9iner/HPIM1245_resized_resize.JPG
shehan
12-10-2004, 04:48 PM
hey HRV80Y let me know how the instalation goes because i was thinking of doing th eexact same to mine.. .. i had a quick look at where i would stick a Pod and then where to run the cold air intake but the piping looks way tooo confusing for me.. :confused:
hey man cool to see your showin teh hRV some love!!
D power yo!!
HRV-80Y
12-10-2004, 05:51 PM
haha yeh man cool air intake system den in a couple months time if i still luv d hrv gona get a turbo n weq will install it 4 me = ]
ohh btw shehan i'll let u know how i go shld be finished tmr...jus got it cut...ill post pics...
btw yes r right the pippin is very very confusing...had experts 2 help haha...
d short pipe is from a corolla intake system n the longer one is from an integra intake system...so it will b a lil more expensive buy 2 pipes for one intake system if u kno wat i mean...
supersamEK
12-10-2004, 08:33 PM
i was thinkin, on the EK, if u cut the inlet resonater pipe bit at the 180 degree bend, wouldnt this just be pretty much a cold air feed for the stock airbox? can u see any problems with this? just thinkn.. havnt tried it..
Honda_Fools
12-10-2004, 10:05 PM
how can u notice such a small gain if any from such a mod? yeah pod if you had a turbo.. na? pointless..considering while you're in traffic it's just going to heatsoak and less out on performance.
HRV-80Y
12-10-2004, 10:21 PM
it wont do much honda_fools but its all about the rice-ning up of honda's lil gadgets assessories etc...
HRV-80Y
13-10-2004, 01:47 PM
Engine bay with stock air filter...
http://members.iinet.net.au/~mr6ixty9iner/HPIM1248_resized_resize.JPG
Cold Air Intake bits and peices....
http://members.iinet.net.au/~mr6ixty9iner/HPIM1245_resized_resize.JPG
stock air filter removed...
http://members.iinet.net.au/~mr6ixty9iner/HPIM1255_resized_resize.JPG
peice one of the intake piping, installed onto the throttle body...
http://members.iinet.net.au/~mr6ixty9iner/HPIM1253_resized_resize.JPG
peice two of the intake piping, joined wit intercooler rubber shit...
http://members.iinet.net.au/~mr6ixty9iner/HPIM1256_resized_resize.JPG
ufo small pod filter installed into position...
http://members.iinet.net.au/~mr6ixty9iner/HPIM1262_resized_resize.JPG
closer shot of the pod air filter...
http://members.iinet.net.au/~mr6ixty9iner/HPIM1260_resized_resize.JPG
the finished product lolz !
http://members.iinet.net.au/~mr6ixty9iner/HPIM1263_resized_resize.JPG
rAySiR
13-10-2004, 02:48 PM
so du u notice any diff pascoe...!??!
good job btw! :thumbsup:
HRV-80Y
13-10-2004, 03:57 PM
okay i've run into a tiny problem...i can hear it suck in air all good until like i drove bondi today for like an hour non stop...stopped at set of lights car stalled haha in auto !...
Problem 1.
I'm guessing not enough cold air getn thru but evn tho i positioned my filter right infront of the inlet from the stock air filter is seen in d last pic from my previous post...
Since its a tiny half sized air filter could that be the problem ? should i get a bigger one ?
Problem 2.
The engine might be suckin too much air causing it 2 idle low when i'm on the brake and in drive say at traffic lights...it idles like a lil under 1000revs...
Even maybe adjust the idle atm its at 750 mayb i shld adjust it 2 800 since its an auto tranny?
any suggestions guys ?
rAySiR
13-10-2004, 06:09 PM
...stopped at set of lights car stalled haha in auto !...
HAHAHA... :D
could you be suckin too much hot air...!? heat soak? cause from your Photos, theres nothing stopping your filter from sucking in hot air from the engine. And like today was bloody hot!
Maybe you need to make yourself a heatshield?
HRV-80Y
13-10-2004, 06:15 PM
HAHAHA... :D
could you be suckin too much hot air...!? heat soak? cause from your Photos, theres nothing stopping your filter from sucking in hot air from the engine. And like today was bloody hot!
Maybe you need to make yourself a heatshield?
heatshield ? i went blank wat exactly is heatshield like a box ?
rAySiR
13-10-2004, 06:51 PM
yeah... kinda like a box... so it keeps your filter in a box...
man i prolly don't know what i'm talkin about.... been doin me assignment the whole day and goin crazy... i could be makin stuff up and i don't know it....
:) :confused: :wave: :D ;) :rolleyes: :p :o :cool: :(
inertia
13-10-2004, 09:14 PM
what's with the ricing?
don't we all hate those riced up lancers like everywhere!?
well honda's are turning into lancers..esp civics.
shehan
13-10-2004, 09:47 PM
hey Well done looks very nice ...hope you get those lil problems sorted out.... ill let you know when i do mine coz i think im gonna need a bit of help...
HRV-80Y
13-10-2004, 10:37 PM
hahaha no worries shehan...happi 2 help a fellow purple hrv !
Usual Suspect
15-10-2004, 05:44 AM
is their ne way u can use the stock air filter covering on ur new cai? with some modding i think u shoud be able to cover the filter form the engine bay.
i aint seen the airbox on a cai in ages so im not sure what its desinged like.
HRV-80Y
15-10-2004, 12:30 PM
hahaha lmao i think easiest way is i won't drive when its +35degrees haha = p
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