AEM V2 or ITR box with feed?


kbartlett1888

kbartlett1888

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Oct 27, 2009
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Tried searching this but no luck, pretty sure it has come up before.

Right now i have an AEM V2 long arm air intake but after hearing someone mentioning the length of the AEM is too long (loses suction strength), was considering getting an ITR air box with cold air feed etc

Anybody been in my position? Had an AEM V2 and changed to this ITR set up or vise versa?

Any comments appreciated.

cheers
 
Not exactly the same, but I went from a V1 to an EK9 airbox with no resonator and much prefered the EK9 box. Engine just felt smoother and more responsive, if a bit quiet.
 
Kozy said:
Not exactly the same, but I went from a V1 to an EK9 airbox with no resonator and much prefered the EK9 box. Engine just felt smoother and more responsive, if a bit quiet.
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Im thinking because the V2 is quite thick (3" im sure) and so long, that an ITR would be alot more responsive.
 
I like the OEM look of a stock box, plus its a bit more quiet.
Im tired of looking at the AEM tubes to be honest, "passe".

I'm running the CT Icebox with a K&N cone filter.
 
I love my V2 and is the only air intake mod that I have ever noticed any differance oerformance wise
 
tama666 said:
Longer tube is good I thought.
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Hmm not quite sure. If you think about it, if it was a short intake pipe then suction would be alot stronger, as it gets longer the strength would die slightly, or so im thinking, maybe somebody can clarify this or tell me im talking shite lol. Also in the same boat, tired of looking at my AEM and love the look of ITR box with maybe a spoon filter inside.

Boyle - I havent been able to compare the V2 to anything else unfortunalty as i bought the car with it. I did however have an V2 on my old D14 (EJ9) and the difference even for a 1400 was amazing.
 
i seem to recall that a long tube is better for some reason, i think is has to do with the air flow being more sorted out prior to the intake manifold. Less turbulence with longer tubes.
 
From what i've been told the general rule of thumb is,
Longer intake=Low/mid range power.
Shorter=Top end power.
Its a fine art though calculating the right intake length, but alot of people say ITR box with cold air feed and velocity stack is one of the best set ups for your money.
 
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^^

password_jdm_univ_cf_velocity_stack_4.jpg


0000bloxfilternvs.jpg
 
No problem mate. On my phone at the moment so i throw up a picture and link to a site which you can use to work out intake length later when i get home.
All a velocity stack is though is a trumpet/funnel shape device which channels larger amounts of air into the smaller pipe which creates a venturi effect which speeds the airflow up. This is what makes the Mugen/ iceboxs so effective.
Sorry for the c**p explanation best i can explain it with out a diagram.
 
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Cheers mate, never actually seen one. I've already bought a teg air box and going to get cold air feed etc and see what the difference is. Will also be buying velocity stack now. Reckon eBay does them or you know where?
 
The one i will use is a bpi one which comes with a K&N filter. Blox make them and from the picture password do and thatim sure there are other companies aswell, Don't know much about the ebay ones but im sure there be fine its only a funnel at the end of the day. I would post a few links but my phones not letting me.
 
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I forked ou for a brand new V2 on my EG and wasnt impressed. Went back to the standard airbox with KnN pannel, baffeling cut out and a cold air feed. Noticed it pulled into vtec allot smoother and carried on pulling right to the redline.

The V2 was peaky gave a big kick and nice power 5-7 but after that it seemed to be a bit flat. The longer the piping the harder the engine has to work to pull the air from the filter at higher RPM.

ITR airbox is the best mod for the small cost. I swaped back to the V2 a second time to make sure but still even my modified EG airbox with KnN pannel was much better.
 
VTEC-334 said:
Thought i post this up if you or anyone else fancy's having a go at making the own intake.
Velocity-of-Sound Intake Runner Length Calculator
Not sure how accurate it is but might be a good start to get a rough idea on length then just fine tune it to what you need.
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Good link but that is aimed at pulse tuning intake manifolds and throttle bodies. The pressure waves won't be having an effect that far down the system for the length of the induction pipe to have any effect, performance id going to be purely down to the temperature, velocity and inertia of the air.
 
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