bleed vs. dual stage MBC

[88shadowpjct]

whats better? a bleed or a MBC? i have a turboXS dual stage MBC. im wondering whats best...

A. barb on turbo - dual stage - wastegate
B. barb on turbo - restrictor - bleed - wastegate

either way, doing away with the factory solenoid is ok right? just leave the plug hooked up to it?

[xrattiracer]

anything is better than a bleed/restrictor...

[glht_omni]

i usually just go from the turbo to the wastegate with the mbc in between, some people go from the intake to the wastegate with the mbc in between. you dont need a bleed or restrictors

[sittn86]

Bleeds spool too slowly.

[88jbody]

Quote:

Originally Posted by sittn86 Bleeds spool too slowly.

yup they do.

use the MBC. and either run the line from manifold to the MBC then to the Waste gate
or from the turbo housing to MBC then to waste gate.

[impuresoul2k3]

Quote:

Originally Posted by glht_omni i usually just go from the turbo to the wastegate with the mbc in between, some people go from the intake to the wastegate with the mbc in between. you dont need a bleed or restrictors

The only problem with grabbing the feed off the turbo is that it will pressurize the intake first and then the pressure has to work its way back through the piping to the start of the turbo before the wastegate opens. My friend did this on his grand am and was having boost control issues until he moved it to the intake.

I have mine coming from the vacuum manifold to mbc to wastegate.

[asless]

Quote:

Originally Posted by impuresoul2k3 The only problem with grabbing the feed off the turbo is that it will pressurize the intake first and then the pressure has to work its way back through the piping to the start of the turbo before the wastegate opens. My friend did this on his grand am and was having boost control issues until he moved it to the intake. I have mine coming from the vacuum manifold to mbc to wastegate.

That would be my thoughts. Where are you trying to control the boost level, at the turbo or in the manifold (not there should be much difference).

[speeduphoria]

Quote:

Originally Posted by impuresoul2k3 The only problem with grabbing the feed off the turbo is that it will pressurize the intake first and then the pressure has to work its way back through the piping to the start of the turbo before the wastegate opens. My friend did this on his grand am and was having boost control issues until he moved it to the intake.

what kind of boost control issues? boost spike?

[cameliajuke1]

Quote:

Originally Posted by 88shadowpjct whats better? a bleed or a MBC? i have a turboXS dual stage MBC. im wondering whats best... A. barb on turbo - dual stage - wastegate B. barb on turbo - restrictor - bleed - wastegate either way, doing away with the factory solenoid is ok right? just leave the plug hooked up to it?

MBC is much more superior. You can use it without any further doubts

[88shadowpjct]

i took my dual stage apart the other day to clean it before i think about hooking it back up. figured out why i had overboost problems before.. it came loose in the center between the 2 sides. so i sealed it up and made it tight. but when i took it apart, i realized how it works (never really knew b4) its just a bleed. under the turn knob, there are 2 holes that bleed the boost out. so why do people say its better than just a bleed? isnt it just the same thing? just costs more and has a name on it?

[Ondonti]

I dont know what you are considering a bleed but a ball and spring grainger works great for boost control because the wastegate never cracks open until you get to max boost (when the spring moves and then lets pressure go to the wastegate).

Wastegates crack open before you ever get near full boost.

[88shadowpjct]

wow ok never thought of it that way before. hmm might be investing in one of those soon then.

[turbokid]

G-valves are great! I have 2 of them on my cars and its easy to turn up and down boost and is a pretty cheap (25$ from FWDp) and super easy mod

[Gutfeeling]

I bought my G valve from the egay for like 8 shipped. Not all fancy or anything, but it does the job and is pretty hardcore built. If I had to do it again, G valve would be the choice again.

[88shadowpjct]

i remember seeing something on how to make one.. does anyone have a link? are they reliable too? or should i just buy one already made?