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Old 14 Jan 2007, 03:08 pm
Rafi
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Default Help with installing air intake

Hey guys,
I am trying to install a carbon fiber intake tube to replace the stock
one in my 1994 Accord (EX, VTEC) coupe. The
new intake has two small protrusions on top for attaching the two
rubber
tubes to the intake. and that's it. The original has, in addition, a
tube-like plastic thing that is attached to the intake from the bottom.

It's a flat plastic tube that goes into a box near the battery.
There
is a small tube or hose that comes out of this box and goes to either
the engine block or another device. What do this box and the hose do?

I am not talking about the factory air filter, but this black box is
connected to the factory pipe. I don't know what this is. Should I just
remove this, or what should I do? If I don't remove it, then the new
pipe won't fit there. So what should I do? I think 1994-1997 Accords
have this black box (I am not talking about the air filter, but this is
a seperate box below the pipe, and behind the battery) connected to the
factory air intake pipe.

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  #2 (permalink)  
Old 15 Jan 2007, 12:27 pm
jim beam
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Default Re: Help with installing air intake

Rafi wrote:
> Hey guys,
> I am trying to install a carbon fiber intake tube to replace the stock
> one in my 1994 Accord (EX, VTEC) coupe. The
> new intake has two small protrusions on top for attaching the two
> rubber
> tubes to the intake. and that's it. The original has, in addition, a
> tube-like plastic thing that is attached to the intake from the bottom.
>
> It's a flat plastic tube that goes into a box near the battery.
> There
> is a small tube or hose that comes out of this box and goes to either
> the engine block or another device. What do this box and the hose do?
>
> I am not talking about the factory air filter, but this black box is
> connected to the factory pipe. I don't know what this is. Should I just
> remove this, or what should I do? If I don't remove it, then the new
> pipe won't fit there. So what should I do? I think 1994-1997 Accords
> have this black box (I am not talking about the air filter, but this is
> a seperate box below the pipe, and behind the battery) connected to the
> factory air intake pipe.
>

that box is the resonator. it helps tune the intake so there are no
flat spots in the intake charge curve.

bottom line rafi, you're not going to get a lot of enthusiasm on this
group for the mod you're proposing. there are a number of potential
problems including decreased engine life with decreased filter
efficiency, and the risk of water ingestion - not good.

if you want bolt-on performance, go for a better header and a more
aggressive cam. after that, look into getting the head ported and going
for higher compression pistons. before any of that though, make sure
all your ignition components are in top condition. iridium plugs and
magnecor plug leads for example won't magically give you more power, but
they will definitely make sure you don't lose any along the way. also
make sure the valve lash is set right, that the timing belt is set and
tensioned correctly, and that the ignition timing is correct. also,
make sure you have that "max power" thing down. not sure what your vtec
crossover rpm's are on your motor, but the max power for your motor is
way up there near the red line - hondas have no torque, so they won't
"grunt" you off the green light, but with the motor spinning fast
enough, they perform quite decently.
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  #3 (permalink)  
Old 15 Jan 2007, 12:58 pm
Tegger
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Default Re: Help with installing air intake

jim beam <spamvortex@bad.example.net> wrote in
news:PPednfizrMABWjbYnZ2dnUVZ_vGinZ2d@speakeasy.ne t:


>
> bottom line rafi, you're not going to get a lot of enthusiasm on this
> group for the mod you're proposing. there are a number of potential
> problems including decreased engine life with decreased filter
> efficiency, and the risk of water ingestion - not good.




A guy I know put one of those "cold air intakes" on his '95 Integra. He
drove through a puddle last year and sucked up enough water to bend one of
the connecting rods. Wish I'd got a picture of that one!





--
Tegger

The Unofficial Honda/Acura FAQ
www.tegger.com/hondafaq/
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  #4 (permalink)  
Old 15 Jan 2007, 08:09 pm
Jim Yanik
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Posts: n/a
Default Re: Help with installing air intake

Tegger <tegger@tegger.c0m> wrote in
news:Xns98B98DC49F95Etegger@207.14.116.130:

> jim beam <spamvortex@bad.example.net> wrote in
> news:PPednfizrMABWjbYnZ2dnUVZ_vGinZ2d@speakeasy.ne t:
>
>
>>
>> bottom line rafi, you're not going to get a lot of enthusiasm on this
>> group for the mod you're proposing. there are a number of potential
>> problems including decreased engine life with decreased filter
>> efficiency, and the risk of water ingestion - not good.

>
>
>
> A guy I know put one of those "cold air intakes" on his '95 Integra.
> He drove through a puddle last year and sucked up enough water to bend
> one of the connecting rods. Wish I'd got a picture of that one!
>
>
>
>
>


I have a CAI on my 94 GSR.
It's peppier even at the low end,even with no exhaust mods.
It makes a LOT more intake noise,though.(throughout the entire RPM band!)
The air filter is behind the right turn signal(ahead of the wheelwell),and
you have to partially remove the wheelwell liner to get at it for cleaning.
(mine only cost $60 off Ebay,a Chinese-clone "Bomz" intake.)

The original Integra intake after the resonator loops back over the
wheelwell to back inside the engine compartment,it's quite a long intake
system.The Type R eliminates the last bend back into the engine
compartment,drawing cooler air from above and slightly behind the
wheelwell.A lot less chance of sucking water,5 HP extra.
(Honda Tuning Magazine got a 20 HP gain from both CAI's they tested on an
2.0L RSX,5-7 HP from short ram intakes)
I guesstimate that ~15 HP would be the gain on the 1.8L B18 GSR motor.


Better CAIs have a BYPASS valve to prevent water ingestion.
You can buy them to fit other CAIs,I believe.


BTW,"short ram intakes" are NOT "cold air" intakes.
You -can- build a duct to supply them with cold air,though.
They still lose HP and torque on the low end,longer CAI intakes don't.

--
Jim Yanik
jyanik
at
kua.net
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