Removing MBC?

BEEAH · 06-08-2008, 01:05 PM

Hello, I am looking to remove the boost controller valve from my 06 STI. I have the origional hosing and can easily see where two of the 3 connections go. One to that actuatator, and the other to the turbo. The one that I cannot find a home for is the one at the bottom of the plastic "T". It has a plastic push on connection to it ready to accept another hose. Where does this 3rd connector go?

Everything I read about these make me a bit paranoid about leaving this thing on without a tune. So, its comming off.

The downpipe and intake I think are ok for now.

Thanks

gr00vy07 · 06-08-2008, 01:39 PM

It goes to the Turbo inlet hose. Here is a couple pics:

close up

Intake

Otherguy · 06-09-2008, 01:53 AM

Thats not how that hose is spose to be that spot is for the linkage cable for the tb

rjacobs · 06-09-2008, 05:53 AM

Quote:

Originally Posted by Otherguy

Thats not how that hose is spose to be that spot is for the linkage cable for the tb

STI's have DBW throttle body's not cable driven

. Plus Subaru(nor any car manufacturer) would EVER put a throttle cable on a flexible hose. Do you know how dangerous that would be? Hose flexes, throttle changes.

In response to the original question. One part of the T goes to the wastegate actuator, the other goes to the turbo compressor outlet, and the third part of the T goes to the factory BCS which should be attached to a bracket bolted to the passenger side shock tower.

gr00vy07 · 06-09-2008, 06:06 AM

Quote:

Originally Posted by rjacobs

In response to the original question. One part of the T goes to the wastegate actuator, the other goes to the turbo compressor outlet, and the third part of the T goes to the factory BCS which should be attached to a bracket bolted to the passenger side shock tower.

+1

. my pics showed the hose coming out of the BCS to the intake which you will need to install anyway. I forgot

to mentioned or take a pic of the T junction to the BCS hose.

Otherguy · 06-09-2008, 08:17 AM

Quote:

Originally Posted by rjacobs

STI's have DBW throttle body's not cable driven

. Plus Subaru(nor any car manufacturer) would EVER put a throttle cable on a flexible hose. Do you know how dangerous that would be? Hose flexes, throttle changes.

In response to the original question. One part of the T goes to the wastegate actuator, the other goes to the turbo compressor outlet, and the third part of the T goes to the factory BCS which should be attached to a bracket bolted to the passenger side shock tower.

Rjacobs this is Stupidfastwagon from Nasioc...

Look at this picture and tell me what you think :S

Im not crazy that spot on the intake arm is for the cruise control cable...

***snorky*** · 06-09-2008, 08:33 AM

Quote:

Originally Posted by Otherguy

Thats not how that hose is spose to be that spot is for the linkage cable for the tb

Quote:

Originally Posted by Otherguy

Rjacobs this is Stupidfastwagon from Nasioc...

Look at this picture and tell me what you think :S

Im not crazy that spot on the intake arm is for the cruise control cable...

you are correct sir.

/hijack

Otherguy · 06-09-2008, 08:37 AM

I knew I wasnt crazy... I had to remove that line when I went to a MBC and just stuck a bolt in the hose :P So far so good

BEEAH · 06-10-2008, 05:20 PM

I did find it, thanks guys. It was a hose comming from the left side of the wall.

06-08-2008, 01:05 PM	#1
BEEAH Amateur STI Driver Car: 06 STI Black Fav Mod: Radar Detector Location: South Detroit MI Posts: 29 Join Date: May 2008 Trader Rating: (0)	Removing MBC? Hello, I am looking to remove the boost controller valve from my 06 STI. I have the origional hosing and can easily see where two of the 3 connections go. One to that actuatator, and the other to the turbo. The one that I cannot find a home for is the one at the bottom of the plastic "T". It has a plastic push on connection to it ready to accept another hose. Where does this 3rd connector go? Everything I read about these make me a bit paranoid about leaving this thing on without a tune. So, its comming off. The downpipe and intake I think are ok for now. Thanks This ad is not endorsed by this member. Please register or login to hide this ad.

06-08-2008, 01:39 PM	#2
gr00vy07 Silver Member Car: 07 SWP STI LTD #484 Fav Mod: Defi Gauges Location: Seneca, SC Posts: 110 Join Date: Feb 2007 Trader Rating: (1)	Re: Removing MBC? It goes to the Turbo inlet hose. Here is a couple pics: close up Intake Last edited by gr00vy07 : 06-08-2008 at 01:40 PM. Reason: mispelling

06-09-2008, 01:53 AM	#3
Otherguy Junior STI Driver Car: 04 WRX Wagon Fav Mod: EvoIII 16G Location: C.Cove to Iraq Posts: 96 Join Date: Sep 2007 Trader Rating: (0)	Re: Removing MBC? Thats not how that hose is spose to be that spot is for the linkage cable for the tb

06-09-2008, 08:37 AM	#8
Otherguy Junior STI Driver Car: 04 WRX Wagon Fav Mod: EvoIII 16G Location: C.Cove to Iraq Posts: 96 Join Date: Sep 2007 Trader Rating: (0)	Re: Removing MBC? I knew I wasnt crazy... I had to remove that line when I went to a MBC and just stuck a bolt in the hose :P So far so good

06-10-2008, 05:20 PM	#9
BEEAH Amateur STI Driver Car: 06 STI Black Fav Mod: Radar Detector Location: South Detroit MI Posts: 29 Join Date: May 2008 Trader Rating: (0)	Re: Removing MBC? I did find it, thanks guys. It was a hose comming from the left side of the wall. This ad is not endorsed by this member. Please register or login to hide this ad.