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JDM Kakimoto Racing Air Collection Chamber for N/A engine


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Kakimoto Racing makes a chamber for all N/A Subaru engines (2.0/2.5/3.0R) with a retail price of between $400-500 USD new.

 

picture taken from the Kakimoto Racing website:

 

http://www.kakimotoracing.co.jp/22-00_intake%28web%29/images/chamber_00.jpg

 

Box from Japan :cool:

 

http://img46.imageshack.us/img46/1952/pict0002oz.jpg

 

http://img46.imageshack.us/img46/4919/56415777.jpg

 

http://img46.imageshack.us/img46/4932/56372640.jpg

 

The LHD version has that A/C line (red circle)

This line does not appear on RHD version, so the air chamber needs to be raised about 1 inch to avoid it.

 

http://img145.imageshack.us/img145/5923/97596087.jpg

http://img205.imageshack.us/img205/462/img4406m.jpg

 

http://img524.imageshack.us/img524/4051/img4410.jpg

 

JDM air chamber with tuned pipe for smoother air flow

http://img41.imageshack.us/img41/9319/intakebox.jpg

 

LHD versions had their tuned pipe removed (can still see the bracket holding the pipe inside) Due to the A/C line.

http://img693.imageshack.us/img693/5636/img4413x.jpg

 

Factory LHD air chamber (dented to avoid LHD AC line)

 

http://img515.imageshack.us/img515/8661/img4414.jpg

 

Dent on the back to avoid A/C line

 

Impression:

 

Pro:

 

Much better initial throttle response, finally the flat six roar instead of that electric wheelchair whine.

 

Bad:

 

Not a perfect fit for LHD model due to A/C line, a little too much resonance in the roar (trying to fix that right now...stay tuned) Gets pretty hot under the hood.

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Think of like an air compressor. The larger the tank, the more reserve air you have. By having a large tank before the throttle body, there's reserve, metered, air in there. So when you jab the throttle, there's plenty of air for the engine before the velocity in the intake picks up.

 

 

That may be complete BS, but it makes sense to me.

(Updated 8/22/17)

2005 Outback FMT

Running on Electrons

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You have to change how you think about the atmosphere we live in to better understand.

 

That big metal tank is full of air at about 14.7psi. The air pressure on the other side of the throttle plate is around 5psi or less. So when the plate opens, the 14.7psi air rushes in. The bigger the tank, the more air for that initial rush.

 

 

So I guess this thing will help mostly with throttle response and not all out power. Although it has a nice smooth bend into the throttle body so it probly helps top end flow as well.

(Updated 8/22/17)

2005 Outback FMT

Running on Electrons

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well my shop has attempted to contact them to order this part. I hope I here back from them, so i can get one shipped. IFFFF I can get one I will dyno the car and show before and after numbers. Car is bone stock 4EAT with intake pipe.

 

Pachilla are you in Japan now, or did you order it? can you give some insight on this?

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well my shop has attempted to contact them to order this part. I hope I here back from them, so i can get one shipped. IFFFF I can get one I will dyno the car and show before and after numbers. Car is bone stock 4EAT with intake pipe.

 

Pachilla are you in Japan now, or did you order it? can you give some insight on this?

 

Yeah I would think a tune would be mandatory after that. I got a lightweight crank pulley and that alone caused my idle speed to change.

 

Wondering about the mounting points and what type of mods are required for the hoses, clamps, etc.

 

Looks promising keep us posted.

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