richardparker

iTrader: (7)

What do you think is the best size cold air intake piping to use.
And why.

I will be ordering some cheap kit today, just to basically get the piping.

RendanCLS

The more air you can take in, the better right?

duyx817

but what if its not sucking hard enought? you know what i mean? big straw doesn't mean you can get faster milk, and its harder to pull in then a little straw

Rapture

IMO I think the length of the pipe is a bit more crucial for gains than the width. Shorter distance the air has to travel, etc.

gfrg88

iTrader: (2)

just get a p2r intake.. best one made out there, i think... so pretty much if youre making your own, id go 4" tapered down at the throttle body...

richardparker

iTrader: (7)

I found this video.
he says:smaller diameter pipe and longer will gives good low end power and larger diameter pipe thats shorter will give top end power.
Anyone agree ?
http://www.youtube.com/watch?v=i4ru6Q3NTII

phee

iTrader: (5)

i agree with the video.

Rapture

I wouldn't agree with the part about getting 18 horsepower... I think it's been proven the most you'll get is about 10 from a CAI.

MrFluffy

It looks like that CAI would be sucking up alot of heat from the tranny

I heard that any type s car gets alot of HP from cai
Hemi's too

18 sound like alot but I heard that hemi's get close to 22hp but the RSX only got 200 to begine with which is a 9% increase the hemi ony gets a 6% increase but 9 % seems very high

BTW I dont know if these are right Its just what I heard

I built a custom intake for a friend that had a lancer with the evo kit and I put the intake filter right where the fog light would of been it was 3.5" down too 2.5" at the top but it worked like a ram air becuase of where the filter was

Rajca

iTrader: (8)

first. go cai
second p2r has a really nice intake, great design and by far makes more power then the icebox. but u have to be on a waiting list or something like that
but match a pipe up to the size of the tb.

secondly, our engines love to breath, so more air the better.

3rd sri is good until the engine bay gets hot. then its worse than the factory intake

lastly, the cai pipe sits behind the fog light/road lamp/insert. away from any heat

civicdrivr

iTrader: (9)

Whatever size intake you go with, make sure your exhaust can keep up.

richardparker

iTrader: (7)

Anyone running the fujita cold air for the accord on there cl ?
I've been looking around and this is about the best deal on a full one piece cold air setup I can find. except one other place that offers it for 15 bucks cheaper.
And I'm liking the hardware,and the filter looks a little differnt too..
http://cgi.ebay.com/ebaymotors/ws/eB...K%3AMEWAX%3AIT

Joe5.0

The size of the intake tubing should be at minimum as large as the TB, and ideally slightly larger.

As few bends as possible also. I believe the stock TB is 65mm, and if thats the case the intake tubing should be at minimum 2.75".

CL-S progression 01

iTrader: (2)

how much more hp does the p2r intake make vs the Injen???

injen is 3inches all the way and had a hard 90degree bend on it.... in my mind that's where the problem is.

P2R's 90degree bend is muchhhh more gradual and probably makes for better flow.

how it goes from 4inch to 3 inch tho is a bit weird cause ur creating a bottleneck effect...

I guess it's so minimal though that it makes more than if it were not to be 4inches most of the way though.

but how much more does p2r make over injen... anyone know?

civicdrivr

iTrader: (9)

Probably not enough to feel a difference.

97BlackAckCL

iTrader: (6)

You want the intake piping to be the same as the TB, I voted 3"

I have 2.75" on my CL

richardparker

iTrader: (7)

Well I guess we will see how the cold air fujita works soon.
picked one up for $120.

phee

iTrader: (5)

i agree with the video in reference to the question asked by the original poster. better?

CL-S progression 01

iTrader: (2)

injen is 3 inches all the way... correct?

Rapture

kthx! now I can sleep at night.

and if you do get a CAI, I'd definitely invest in some sort of protection against hydrolock. AEM has the bypass valve, Injen has the Hydroshield, I dunno what the others have.. I got a Hydroshield for less than $30, and IMO it's like a peace of mind kind of thing. There have been plenty of people in the 1g CL side who hydrolocked their cars.

Rajca

iTrader: (8)

really hard to hydrolock our cars. sits behind the bumper, above a splash shield. so u would need to submerge the whole front bumper in water to hydrolock the engine.

Rapture

What about if you drop the car? And yeah, it's really moreso a peace of mind thing like I said. I do remember hearing a lot of people in the 1g and maybe a few here (maybe..? don't remember) that actually did hydrolock their cars. I don't know exactly how different the 1g and 2g CLs are in regards to the splash guard in front of the driver's side front wheel.

Not to mention when I drive around in the pouring rain, my hydroshield is usually pretty damp. I have no clue exactly how much rainwater it would take to hydrolock the engine, and I don't really wanna know, either... Meh, $30 isn't too bad of a price either way, IMO.

Rajca

iTrader: (8)

still need to submerge the front bumper into water

civicdrivr

iTrader: (9)

Whenever it rains I get a nice puddle in the splash shield. But its not enough to hydrolock a car.

If you're retarded and drive into a puddle that is higher then the bottom of the bumper then you deserve the hydrolock.

richardparker

iTrader: (7)

I probally should get some kind of shield.
Since I've been too lazy to order some new clips to install my new inner fender liners.

darkness_cl

AEM V2 ftw!

Retell

Has anyone found a true eBay CAI? Everything seems to be like short ram.

richardparker

iTrader: (7)

Just those 2pc one's.
You will get beter flow from the single long tube

Rajca

iTrader: (8)

better flow, but if ur gonna add a bypass filter then the flow gets messed up so it doesnt matter if its a two piece or not.

richardparker

iTrader: (7)

agree
no bypass for me.
I like playing with fire
If the car happens to take a drink I will have a reason to do some work.

CL-S progression 01

iTrader: (2)

hydrolocking happens to people who aren't paying attention to the road/where they are driving.

I've had a CAI on my cars for 6 years.. no problems.

and 5 of those years was on my ford probe and there was NO guard between the filter and the ground... it was 4 inches from the pavement and I drove it all year around. So there is nothing to worry about IMHO

AARONSredTYPE-S

injen or p2r is the favorite on here, but nowadays its a custom 3.5" or 4" cai
great info on small and long pipe for torque, and big and short for top end h/p

im gonna do a 4" sri i think

AARONSredTYPE-S

I ended up with the AEM V2 CAI, and it fits good with my P2R spacer & gaskets. IT starts @ 2.75 and goes to 3.5", dunno about performance, but it looks good.
Was wondering though, as of right now i dont have the vacuum line from the front of the engine tied into my intake, its plugged for now. What does that vacuum line go to? if i dont need it, then i guess i could leave it plugged up....

reese8789

iTrader: (1)

It goes to the front valve cover. You can plug it on the intake side and then put a little breather filter on the valve cover.

AARONSredTYPE-S

i know it goes from the intake to the front of the engine. i was wondering why or what the vacuum line is needed for?
because right now i have it plugged with a bolt

StreetKA

iTrader: (8)

im still thinking about making custom one but what size ? prob 3.5" what size was P2R one ?

AARONSredTYPE-S

most on here do 3.5", but the P2R was 4" man, so go for it...cxracing has the stuff you need....gl

brian6speed

iTrader: (5)

AIRFLOW BALANCE

"Ideally, if the total flow path- from air cleaner through the end of the header- is tested, and the intake segment is compared to the exhaust segment, the two separate systems should produce identical flow volumes."

It is all about balance. You want the same flow in and out of the engine. The diameter you want isnt the same for every cl or j32 engine. The p2r car had custom headers and 3" single exhaust which increased exhaust flow, so he could increase intake flow to balance it with bigger intake that funnels the air, bored tb, ported im and runners etc. Best option would be to optimize it on a flow bench/dyno.

AARONSredTYPE-S

i agree with what you said Brian.
On the other hand, P2r had a guy do an independant dyno against his comptech icebox and P2R 4" intake, and gained 10 more whp over the comptech, and he had nowhere near the mods as the P2R accord does.
Essentially, you do wanna suck in as much air as you shoot out, but i think that with that case, he was sucking in a lot more air than he was shooting out the exhaust...
dunno if all of that was relevant to what you were trying to make a point on, but I just wanted to add...

GK83

Is the CAI in AUTOMATIC different on MANUAL? Please answer. Thanks if so can i modify the auto injen cai to fit on 6 speed manual?