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View Full Version : Manual Boost control help?


Mx4Life
01-22-2011, 09:44 PM
I have an ej20 and am not familiar with the vacuum lines. I have it hooked up like this. Is this correct? Its a turbosmart bleed off type.


https://sl-i.net/FORUM/images/imported/2011/01/MBCdiagram-1.jpg
chuckthefuk
01-25-2011, 01:15 PM
Does your turbo look like this with a T-connector?

https://sl-i.net/FORUM/images/imported/2011/01/1131343-1.jpg

Here is another example:

https://sl-i.net/FORUM/images/imported/2011/01/07subaruservicebulletinrk2-1.jpg

-Chuck
Mx4Life
01-26-2011, 02:38 PM
stock it doesnt. it had 2 seperate hoses going to the factory boost controller, then on going out the bottom back in the intake.
chuckthefuk
01-26-2011, 05:55 PM
Where did the first 2 hoses come from?

Also pics help !

-Chuck
Mx4Life
01-28-2011, 01:30 AM
Hose from the nipple on the intake side of the turbo went to the top of the stock boost control. Hose from the wastegate went to the side of the stock boost control. Then theres a hose that comes out of the bottom of the stock boost control that recirculates to the intake.
chuckthefuk
01-28-2011, 01:42 AM
So the diagram is correct.. just put the t-connector on and your good.

-Chuck
Mx4Life
01-28-2011, 11:11 AM
would you suggest a different style of mbc or s this on good enough?
chuckthefuk
01-28-2011, 12:42 PM
No reason to change. If you connected it properly the MBC should bleed off of regulate your boost.

Simple business !
-Chuck
Mx4Life
01-28-2011, 02:30 PM
thanks for the info chuck. ive neve had this style of mbc before so now its off to order my fuel cut defender. any suggestions for that one? i also had some one tell me i can use the recirc valve off a toyota 7mgte (87-91 supra) they said its stronger and is also metal not plastic.
anothernord
01-28-2011, 04:20 PM
I like the Turbo XS RFL in recirculated mode. Great if you like things subtle.
Mx4Life
01-29-2011, 08:21 PM
I had someone tell me that any noise making BOV I put on there will shorten my turbo and engine life and also robs HP.

Still need a suggestion for a fuel cut defender though.
jey
01-29-2011, 08:57 PM
Unless you have a totally crappy BOV that doesn't do it's job I don't see how it will shorten the life of the turbo. However a atmospheric venting BOV will vent air out of the intake that has already been accounted for by your MAF so you're going to run rich whenever it operates, which is suboptimal.