xzyras

S4 car. S5 Hybrid turbo, To4 housing

On the bigger turbo housings with no nipple were do you guys run the vacuum line for the wastgate? I dont want to tap into the Bov/boost gauge? Should those 2 even be ran together? They have been for a long time. Then I have the MBC too. People have said tap into another line and that there are about 4 in the manifold. But were are they and which would be the better one?

The PCV valve? The one with the one way check valve...Is that supposed to have pressure? My boost guage works off of that. I thought it vented?And the MBC is tapped into it. Im not sure I got the car that way.Thanx

Rpeck

The wastegate line should be on both sides of the MBC (off teh nippel on the turbine housing upper), are you confused about what your asking.. or am I confused about what your telling me?

chris_stampe

The mbc should be in between the wg acutator and the vac/press. source. And you can get the source from bassically anywhere, but its best to have it right after the turbo for less boost spikes.

xzyras

I was told the best source was from the manifold. There are a few sources there but I dont want to tap into anything that my need its own line. I dont know what any of those hose are used for or even were they are. Under the manifold?

Could I use the one going from the IC to the manifold? That one has to have pressure. Whats that line for?

xzyras

Anyone? Anything?

xzyras

^^

dr0x

Any where before the throttle body.

xzyras

^