STOCK_EVOLUTION

iTrader: (1)

And i seemed to hook everything back that way it was except for one thing. I just dont remember this.......


Got pic from the how too section

This inlet pipe has a little nipple on it and since i have a manual boost controller setup i dont remember if i had this capped off or if is like some sort of breather.
My question is , is the nipple on the inlet pipe suppose to be hooked up to something or is it like a breather? Thanks

EvoVIIIJeremy

iTrader: (13)

cap it off or use it for your boost pressure source. Dont leave it open.

Spaceball 1

iTrader: (8)

It should be hooked up to your boost controller.

Spaceball 1

iTrader: (8)

If thats how you do it. Well thats how it is stock.

sharkm87

iTrader: (29)

capped

RevMoto

iTrader: (19)

Cap it off. Knowing most people you probably used the vaccum hose from your diverter as your source.

STOCK_EVOLUTION

iTrader: (1)

thanks for the quick responses guys! capped it is.

BoOsTinGEVO190

iTrader: (10)

you do not cap it if your using mbc that's your turbo nipple and the other one is for your wastegate

AlwaysinBoost

iTrader: (17)

if you cap it off make sure you put a zip-tie around it because as soon as you hit boost its going to BLOW...

Neuspeed06

This is where im confused about my setup. Ive heard to cap that off if you are running an MBC and 'T' into the intake solenoid instead.

sparky

iTrader: (1)

A manual boost controller has two(2) ports(nipples). The port that is perpendicular to the axis of the MBC's adjustment knob always gets connected, via a vacuum hose, to the wastegate actuator....ALWAYS!

The second port(nipple) on the MBC, which is the port directly opposite to the MBC's adjust knob, or in other words diametrically opposed to the knob and thus on the knob's rotational axis is called the MBC's boost reference port.

This reference port(nipple) can be connected to either one of two(2) boost reference sources, thusly: 1) some people choose to connect the reference port to a"T" which needs to be spliced into the factory vacuum hose routed between a nipple on the intake manifold and the nipple on the diverter valve. Or, 2) other people opt to reference boost directly from the nipple on the turbocharger's compressor housing discharge tube.

If you have referenced your MBC by T-ing into the DV/intake manifold hose, then you're gonna have to cap off the nipple on the compressor housing discharge tube.

If on the other hand, you are referencing your MBC from this nipple on the compressor discharge tube, then you just reconnect the MBC's rubber vacuum hose back up to the compressor discharge tube's nipple.

BoOsTinGEVO190

iTrader: (10)

Search on the forums there are diagrams showing both ways to install the mbc wastegate to turbo or wastegate to a T at the bov line