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Old 11-23-2001, 10:55 AM   #1
Snooze
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Question Air intake ? (Akimoto Air Intake)

I am looking for an answer !

Is anybody try to put the "cone" filter directly at the exit of the motor intake ?

Is this an obligation to put the pipe ?

Help me !!!

Thanks

Eric
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Old 11-23-2001, 01:22 PM   #2
bouse1
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Do you mean mounting the filter right at the throttle body?
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Old 11-23-2001, 01:31 PM   #3
Keiho
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Yes that's what he meant I believe.

It has been done before, you supposedly gain some power up top but lose a whole bunch of power down low. Like, a whole crap load of power down low.

And Akimoto filters are crap.
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Old 11-23-2001, 01:35 PM   #4
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Yep...

Directly at the exit....on throttle body.

Btw.... where i can take the 101 mechanical cours ?

but i know a lot about lawnmower !

Last edited by Snooze; 11-23-2001 at 02:44 PM.
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Old 11-23-2001, 05:43 PM   #5
bouse1
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My suggestion to anybody looking for an intake setup is to get one which utilizes the stock airbox. You won't be sorry. It's the only way to go. Good luck.
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Old 11-23-2001, 10:58 PM   #6
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remove the silencer in the fender, open up the airbox, put in a K&N or amsoil flat panel, remove the rubber doughnut that used to seal the silencer pipe into the airbox (opens up the airbox inlet a bit more), close everything back up, then seal the airbox to the fender well.

not as much top end as a "real" intake, but you don't lose any torque either.

and it passes tech at the auto-x as a stock intake.

cost = $40 for the new filter, and 2 hours to pull the silencer out.

the big black box is the secret! leave it there!
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Old 11-24-2001, 09:41 PM   #7
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compass motor sports has a intake that uses the stock box idea it looks real sweet, i forgot the price but it is expensive. They did a dyno on it and it was around a 14hp increace, if you don't want to spend the big bucks get a Ganz intake thats the one i have.
Alex
you can check out the compass intake at www.compassmotorsports.com
and the Ganz one at
www.imprezars.com
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Old 11-25-2001, 09:00 PM   #8
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all i have to say is using utilizing the stock airbox is a waste of money on a ganzflow or any other CAI tube. that is so fake and for people who think that they are really going to get cold air up in there. go with whats best. I just put an AEM ram air intake in my 2002 2.5 RS, but it wa smade for 2001 (SAME DAMN ENGINE SETUP!) and the power my car puts out is insane>>ESPECIALLY TORQUE. ive talked to plenty of people on this. my performance store guy tells me things and so does my friend who is a mechanic. Cold air intakes (REAL ONES NOT TUBES OFF OF THE BOX) are good for high end..but if you are running off the line ( as all subarus should) in a 1/4 mile go ram air because it increaes low to mid end torque and trust me i feel it...also if you are into like highway dragging, like for that top end pull look at the cobb tuning intake or especially the new injen cai..i prefer injen...but u will mis out on the torque from a ram...its all preference...anything is better then that box tho!!!
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Old 11-26-2001, 12:22 PM   #9
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Quote:
I just put an AEM ram air intake in my 2002 2.5 RS
Interesting because the don't make one! Perhaps you mean the Aem Short-Ram air intake? That is a lot different than a Ram-Air system. BTW I suggest you drive both or at least do an inkling of research before you mindlessly mouth off again! You really should search on occasion too.
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Old 11-26-2001, 12:30 PM   #10
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jdsimpreza, here is a paragraph taken directly from Cobb's website for you to read:
Quote:
Mounted directly behind the throttle body is the mysterious black plastic plenum whose function has been the subject of much debate. This box was completely empty inside, serving only as a chamber, until mid-1999 when Subaru included a secondary air filter inside. While we haven't discussed the details of this design with the engineers at Subaru, we can make some assumptions as to the reasons of this layout based on some theories behind intake systems. One of the primary reasons for this chamber is to act as a supplemental intake plenum to improve throttle response. When you go from low throttle to wide open throttle, the engine's demand for air increases drastically and the stock intake manifold with it's small plenum lacks the necessary volume to satisfy the engine's demands. To remedy this, Subaru uses this secondary air box as a supplemental plenum to supply this sudden demand of air. This gives us the throttle response we want and keeps our engine happy.
The full article can be found here.

--
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Old 11-26-2001, 12:48 PM   #11
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So is the AEM a real ram air? What does Aem Short-Ram air intake mean. I've been dieing to make that hood scope functional since I've bought the car. If I wanted a decrotive piece of crap I would have bought a mustang.

I have read all the reviews on ram air. I know the inlet is not in the best place for high pressure. I know it was meant for an intercooler.

There has got to be a good way to use that thing.
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Old 11-26-2001, 01:15 PM   #12
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skidplatz no need to mouth off back to me and tell me im wrong and all that BS...u think im making this up....i have a 2001 AEM SHORT! RAM air intake if it makes u happy...and i ahve researched plenty buddy...everyone ive talked to i mean EVERYONE owners of performance parts stores that ive been goin to for years, and my friend who co owns a shop where he does all his own stuff...he said go ram air, screw cai. i tried that crap ganzflow and it didnt do anything top end. vitually useless. i was considering cobb, with the PRM manufacturer, but i decided to go AEM.. and trust me, the torque is far greater with that then it was with the "mysterious black box"! obviously i had the stock box, and just put on a short ram air AEM and i feel the difference and notice it when i drive, and race. all around. im not just bsing u man or tryin to pretend i know it all..im just goin wit my experience, and with what ive researched and tried. ive been to like every web page and have had my subaru 6 monthsa be4 i finally decided on an intake. COBB is a great page though because their options give you the "all balls" power for a 2.5 that you want without turbo /supercharger or even NOS. a good exhaust for the car is the 2001's greddy evolution. not loud. a low grumble at idel and it quites down though acceleration.
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Old 11-26-2001, 01:21 PM   #13
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by the way the short ram air intake isnt as short as other companys like weapon R and other stuff..im not even sure if they claim to be short ram airs or just rams. all i know is that the filter itself sits just prior to the fender hole where a cai would go into. it looks very similar to cobbs intake, yet i stop be4 the fender with a K&N filter. i tihnk its nice, and it works and doesnt lose torque. im no worse off then the stock that i can say. i have loast any low end power, and have gained that and some mid to top end power. most gained low end torque though.
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Old 11-26-2001, 01:41 PM   #14
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jdsimpreza: I don't know if you have ever been road racing on a real course or to an auto-x, but if you have actually ever driven your car hard on a technical course, then you would know that the AEM doesn't cut it. The 2.5 needs low end torque to power out of exits. I tried both the weapon R "dragon" intake and the ganzflow on the same track. I improved my times +4 seconds with the ganz. Maybe if you only like "racing" on the freeway, then the AEM or another tube style intake is the way to go. On a positive note: the weapon R did give me way more top end, which isn't important if you're never in 5th gear on the track. Good luck.
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Old 11-26-2001, 01:51 PM   #15
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i wouldn't go as far as the ganzflow being crap. its a very good intake. i would say best bang for the buck. i have a jc sports intake myself and don't have any problems with it. its same design as the AEM
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Old 11-26-2001, 02:00 PM   #16
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Wow jdsimpreza, it sounds like you talked to a lot of Honda and DSM guys if they told you how great AEM was. I bet none of these shop "gurus" has extensive experience with Subarus do they? But lo and behold you are on a website that contains near encyclopedic knowledge about Subarus and the RS specifically. So when you fly in the face of that knowledge with your NON RAM-AIR intake that is universally abhorred on this site. You must expect a negative response.

I really am sorry about the way I started out it's just that everything you are saying contradicts all of my own and most of this boards experiences.
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Old 11-26-2001, 02:15 PM   #17
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Quote:
Cold air intakes (REAL ONES NOT TUBES OFF OF THE BOX) are good for high end..but if you are running off the line ( as all subarus should) in a 1/4 mile go ram air because it increaes low to mid end torque
Funny, my Honda guys tell me otherwise. CAI increases low/mid range power, and the "ram" air style intakes ups top end.
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Old 11-26-2001, 03:23 PM   #18
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JDSimpreza,
If you dyno both an AEM and COBB (or ganzflow), you will find out that the AEM loses more low end torque than either. I have ridden in cars with all three. Yes in a Honda, the AEM style works great, cuz they have no low end torque! But in a Subaru, you want that low end, and people have experimented with all kinds, and for the most gain, PRM based intakes seem to lead the pack, followed by the Ganzflow. You go with what you want, it doesn't bother me, just don't rip on Cobb (probably the best subaru tuner in america for N/A) or Ganzflow (nicest guy in the business), cuz they both work better at retaining low end!
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Old 12-18-2001, 03:29 PM   #19
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I have a ram air style intake in the process of being made that uses the hood scoop and has its own air plenium to keep the down low torque and tha ram air for the hig end torque. I will be making them as soon as I get a few things figure out so it is roughly in the prototype phase right now. But its extremly loud though.
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Old 12-18-2001, 06:03 PM   #20
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ImprezedRS,
I believe that the plenum works best for throttle response, not necessarily low-end torque. It may play a small role in improving low-end, that remains to be seen. However, in my recent dyno experiences last Saturday, I found that my intake (no plenum at all) has more low-end torque than my stock box. As cobb stated on his website, the box serves as a plenum to improve throttle response. Once you get the air flowing (the throttle response part is over) the flow characteristics of the box come into play. The box has to take in just as much air as the engine pulls out the other side. The stock box doesn't seem to be very good at this. However, when 4,000 RPM hits and the manifold becomes chaotic with turbulence, the box serves as a good reservoir to keep the airflow stable and help the torque.
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Old 12-18-2001, 07:07 PM   #21
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Unhappy AEM Short Ram

Funny thing about this intake is that I don't believe any of you.

I just put one on Friday and guess what???? I have lost no noticable low end torque. All I have is the intake(no exhaust work done), but I have experimented with exhausts (been through 2 different ones so far not counting stock). The intake really isn't where I believe the torque is lost... the exhaust is. I ran a 2.5" cat-back with a Borla XR1 muffler and guess what??? I had nothing until about 4500rpm, but after that, the car wailed.

It is also funny that everyone complains about low end loss but will praise Cobb Tuning. Most of their work is done to increase power in the upper end of the power band (look at the more extensive work with cams and heads and hopefull soon to be Unichip).... they are not tuning a NA car to have lots of power down low.... heck in a full out race, I would venture to say you stay just as much in the upper as the lower RPM range, so if a car has taken on 20-30HP up top, it is still faster.

stop worrying about torque loss... the real source of power is higher up.
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Old 12-18-2001, 07:42 PM   #22
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This debate will NEVER end.

And I wouldn't call the AEM "ram air". In what way is air being "rammed" into it? If the filter is at the fender...I wouldn't call that ram air, even with the plates open. Sounds like a marketing tool to me.

NC
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Old 12-18-2001, 08:17 PM   #23
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Quote:
Originally posted by dcrawford
This debate will NEVER end.

And I wouldn't call the AEM "ram air". In what way is air being "rammed" into it? If the filter is at the fender...I wouldn't call that ram air, even with the plates open. Sounds like a marketing tool to me.

NC
No where does AEM call it a "ram air"... they call i ttheir "SHORT RAM" intake as opposed to their "COLD AIR" intake...
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Old 12-18-2001, 08:44 PM   #24
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Ahhhhhh...

Well someone called it ram air! Short ram...whatever.

NC
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Old 12-19-2001, 03:22 AM   #25
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Funny, I just installed an Akimoto intake into my car and didn't notice any loss of low-end. Gained a little, if anything! And sounds WAAAAAAAAAY cooler! Even my G-tech Pro noiced it! 103hp with home-made Ganzflow style intake, to 111hp with Akimoto CAI.

Keiho, thanks for bringing up the fact that Akimoto filters are crap. I was wondering about the quality of the element. I'm actually looking into a K&N filter at the moment (right in the middle of my Christmas shopping! ).

Anyhow, the information here has been quite interesting. However, it seems that most of the info here is opinionated, more or less. I for one like my intake system, although the Cobb intake has an even greater appeal to me more so now.

Waiting For Santa To Bring His Cobb Intake YELLOW! Hint, Hint,
-Jason SDC
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