Bypass the BCS?

[OneSickTSi]

I've looked and looked for it, but i'm looking for a diagram on how to hook up the wastegate and turbo elbow lines and bypassing the bcs, if anyone has any information on this it would be much appreciated if i could see it.
Thanks Chris

 

[steve]

Originally posted by OneSickTSi
I've looked and looked for it, but i'm looking for a diagram on how to hook up the wastegate and turbo elbow lines and bypassing the bcs

Bypassing the BCS with what?

If your installing a MBC then you have a couple of choices. You can either connect the boost pressure tap to the turbo outlet like the BCS is now or tee into your BOV line from the manifold and cap the turbo outlet nipple. The other end of the MBC goes to the wastegate actuator nipple.
You should also cap the nipple on the air can after the BCS is gone.

Steve

 

[InferiorWang]

i've always wondered, what is the difference between connecting to mbc like the bcs is now and t-ing it into the bov line and capping the turbo outlet? It seems everyone does the latter. Is there a reason that this is better than connecting to the turbo outlet the way the bcs is?

 

[nine5raptor]

I use the turbo outlet nipple. It was put there for a reason. Joe P. visists this site occaisionally and recommends the turbo outlet nipple due to some people experiencing cbv failure because of a t-ed mbc line.

 

[steve]

I use the outlet nipple to get the shortest lines to the controller. Since your setting the boost level based on what you gauge reads the difference in pressure at the outlet vs the manifold shouldn't matter.

Steve

 

[kwiktsi]

Originally posted by nine5raptor
I use the turbo outlet nipple. It was put there for a reason. Joe P. visists this site occaisionally and recommends the turbo outlet nipple due to some people experiencing cbv failure because of a t-ed mbc line.

What he said .. Also, you want to lines as short as possible for the "fastest" MBC response. If you tap the BOV line, boost has to travel to the intake and back through the BOV line, then through the T, then to the MBC, then the wastegate . The factory uses the turbo outlet for a reason... If the line is too long, then you will have increased spike and possibly erratic control.
Joe

 

[nine5raptor]

Originally posted by kwiktsi


What he said .. Also, you want to lines as short as possible for the "fastest" MBC response. If you tap the BOV line, boost has to travel to the intake and back through the BOV line, then through the T, then to the MBC, then the wastegate . The factory uses the turbo outlet for a reason... If the line is too long, then you will have increased spike and possibly erratic control.
Joe

i've noticed considerably more consistent boost control with mine on the outlet nipple (was originally on the cbv line) especially since tying it to the top of the radiator. I tried to put it in a constant temp environment to eliminate the changing boost with temperature. It appears to have worked as my boost never changed when temps went from -3 to 65 (gotta love missouri weather)

 

[kwiktsi]

Originally posted by nine5raptor


i've noticed considerably more consistent boost control with mine on the outlet nipple (was originally on the cbv line) especially since tying it to the top of the radiator. I tried to put it in a constant temp environment to eliminate the changing boost with temperature. It appears to have worked as my boost never changed when temps went from -3 to 65 (gotta love missouri weather)

That's why I usually mount mine right to the factory fan- the constant temp keeps the boost much more consistent. The only think is I prefer to keep the E-MBC out of any extreme heat until I know how it will hold up, so that may be affected a bit more by temp changes because of this, but adjustment is only a push button away if it does change .
Joe