Manual Boost Controller install, W-Pics (some Q's still)

SubaruNation · Post by **SubaruNation** » Sat Mar 15, 2008 9:46 pm

ok so i have this boost controller

i really just need to know what gets run where from where, as im rather confused.

im looking at DLC's hbc write up right now, and still a little bit lost.

and the wastgate (actuator) is the thing with the 3 sticker on it in our cars correct?

im searching, i know..

SubaruNation · Post by **SubaruNation** » Sat Mar 15, 2008 10:06 pm

update, so i run the line (rubber one) you see in front of the air box and connect it to where the arrow is on my boost gauge (it says connect to wastegate actuator) and connect the other side to the wastegate right?

AKA here

eh?

i know im not the only one on here too much

SubaruNation · Post by **SubaruNation** » Sat Mar 15, 2008 10:10 pm

so it would be like this?

maybe?

Arctic Assassian · Post by **Arctic Assassian** » Sat Mar 15, 2008 10:16 pm

you want to run from the arrow(where it says wastegate actuator) to the wastegate,and run boost supply to the other nipple. make sure you disconnect the lines to the boost solenoid.

Arctic Assassian · Post by **Arctic Assassian** » Sat Mar 15, 2008 10:18 pm

I think the arrow is actually where you put the boost supply, and the other is the one for the wastegate. Can you take a clear pic of the writing on the controller?

SubaruNation · Post by **SubaruNation** » Sat Mar 15, 2008 10:32 pm

uploading pics now

SubaruNation · Post by **SubaruNation** » Sat Mar 15, 2008 10:49 pm

ok so this is the bottom of the actual boost controller

this is the bottom of the T that came with it.

this is the boost controller mounted

this is what the rest of the T looks like..

and the rest of the my pics are here..
http://gallery.legacycentral.org/v/Memb ... ost+Gauge/

i know how to put it all together, im just confused about what goes where.

i think the arrows don't help

SubaruNation · Post by **SubaruNation** » Sat Mar 15, 2008 11:12 pm

bump please

SubaruNation · Post by **SubaruNation** » Sun Mar 16, 2008 12:18 am

SubaruNation · Post by **SubaruNation** » Sun Mar 16, 2008 12:29 am

this picture is my best guess, it shows the airflow from one area to the next.

if somebody could let me know if im right here, that would be great.

i really want to drive it.

the really really long red arrow goes to the wastegate, which i have a picture of above also

BXSS · Post by **BXSS** » Sun Mar 16, 2008 1:01 am

I used that same MBC on my SS for a little while.

I dumped the "t" that came with the controller because it has too much of a restrictor in it & caused big spikes - 20psi...

I used a plastic "t" with a 1/8 & 2 x 3/16's ends I got in a assorted box from autozone.

1 big end was connected to the turbo outlet
1 big end connected to the MBC in
Little end to the actuator
Other side of the MBC (top of your pic above) was left disconnected (its a bleed valve so needs to have 1 end open in order to increase boost), but you can connect it to the resonator/c-cup between the airbox & turbo if you like.

Make sure you start in the fully closed position which should be w/g boost if everything is connected OK.

SubaruNation · Post by **SubaruNation** » Sun Mar 16, 2008 2:03 am

bump, where's the turbo outlet.
not the turbo outlet that my intercooler connects to

TheSubaruJunkie · Post by **TheSubaruJunkie** » Sun Mar 16, 2008 2:37 am

Thats how you should have it hooked up.

Dont use that T. Directly under the wastegate is another nipple comming straight off the turbo. Plug that into the arrow, the arrow shows flow direction to the wastegate.

Hope you have a boost gauge.

SubaruNation · Post by **SubaruNation** » Sun Mar 16, 2008 2:38 am

TheSubaruJunkie wrote:

Thats how you should have it hooked up.

Dont use that T. Directly under the wastegate is another nipple comming straight off the turbo. Plug that into the arrow, the arrow shows flow direction to the wastegate.

Hope you have a boost gauge.

YEAH!!!!
finally!
thanks alot, oh.. i have a boost gauge

now to take some drifting videos

SubaruNation · Post by **SubaruNation** » Sun Mar 16, 2008 2:40 am

and then it will work wonders right?

evolutionmovement · Post by **evolutionmovement** » Sun Mar 16, 2008 4:30 am

At least you used the good zip ties. Now cut them flush, dammit! The telcom and marine mechanic in me is going nuts.

SubaruNation · Post by **SubaruNation** » Mon Mar 17, 2008 12:24 am

evolutionmovement wrote:At least you used the good zip ties. Now cut them flush, dammit! The telcom and marine mechanic in me is going nuts.

ha ha i know, for some reason.. i dont know why.. i tend to leave a little extra to cut my hands on all the time

i was in a hurry and i wanted to drive it.
but now i'm scared to drive it.. is this normal

.

it still needs some fiddeling but i think im going to get gas before i do anything else

so far i've got 130 miles on 3/4 of a tank of gas... most of that is from when my self fab'd 90* inlet made of electrical tape and radiator hose pieces ripped apart, and i didn't know about it for 15 miles but it killed my MPG.

awesome

SubaruNation · Post by **SubaruNation** » Mon Mar 17, 2008 12:35 am

so for one last (maybe) question.

what are the benefits of using the T versus not using one?

TheSubaruJunkie · Post by **TheSubaruJunkie** » Mon Mar 17, 2008 1:17 am

I think that T is there so you can tap into another boost source. Our turbo's have a source directly on it so you shouldnt have to worry about it.

Thats just what I think, not scientific. Your making me want to go install my boost controller now

SubaruNation · Post by **SubaruNation** » Mon Mar 17, 2008 1:23 am

here's STiPro's setup if you want to use the T.

if you like having gas in your tank dont. ha ha
but otherwise do, it's SWEET!

and one more one last thing,
the line that goes from where my resonator would be, to the bottom of the stock boost control solenoid.
where should that line go with this new setup?

should it stay there because i didn't do anything with it..

This is the way it should look in your engine bay

This is the way it should look in your engine bay

stipro · Post by **stipro** » Mon Mar 17, 2008 3:38 am

SubaruNation wrote: and one more one last thing,
the line that goes from where my resonator would be, to the bottom of the stock boost control solenoid.
where should that line go with this new setup?

should it stay there because i didn't do anything with it..

Just remove it because you have bypassed that system, and its not required.

SubaruNation · Post by **SubaruNation** » Mon Mar 17, 2008 5:01 am

ah ok cool, i'll just leave it plugged in anyway... and remove it later

BXSS · Post by **BXSS** » Mon Mar 17, 2008 1:57 pm

stipro's set-up is the correct way to connect this.
+ & - will work as they are supposed to & you will not get retarded spikes @ boost levels that should be held steady.

Subarujunkies's set-up will not work properly.
Fully closed "- " (less boost) on the knob will not allow air to pass to the actuator which is the same as disconnecting you turbo to actuator line - maxing out boost.
Open "+" (more boost) on the MBC will give you less boost, but you'll get a spike that tapers to actuator boost.

There is no way of getting around using the "t" - thats why it comes with the controller.

SubaruNation · Post by **SubaruNation** » Mon Mar 17, 2008 10:41 pm

so i should install it with the T and install it like sti Pro's picture says..?

stipro · Post by **stipro** » Mon Mar 17, 2008 11:34 pm

SubaruNation wrote:so i should install it with the T and install it like sti Pro's picture says..?

Of course

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Manual Boost Controller install, W-Pics (some Q's still)

Manual Boost Controller install, W-Pics (some Q's still)

This is what it SHOULD look like