just purchased the TurboSmart black sleeper MBC on ebay. guy says he is selling it because his tuner told him it will ONLY work with Internal WG setups. i could have sworn i have seen many people use these things on external WG setups many times. i have only used EBCs in the past. dont know why his tuner would tell him that.

anyways. according to the directions the direction of the ARROW goes towards the WG.

so i wanted to test the MBC. i tried to blow air through the MBC in the direction of the arrow and i can not get anything through to the other side no matter if i have the DIAL turned all the way up or down... yet if i blow through the MBC in the OPPOSITE direction of the arrow i CAN get air through to the other side and it lessens or greatens depending on the DIAL turns..

is there something wrong? or am i missing something here thats slipping my mind.

 

actually. when i do get air through blowing the opposite direction of the arrow it doesnt actually go through the other side it blleds air off through some little hole in the middle of the MBC between the bottom and the dial...

im just worrie that if i cant get air through the other side going the direction of the arrow like the directions say then the WG wont get any pressure from the boost source and i will over boost. unless im thinking incorrectly about how these MBC's work

 

just hook it up and try it. i think the turbo produces a little more psi than your lungs. there's a spring with a ball bearing in there.

 

i have this mbc and i love it. you are correct the arrow does point towards the WG. i am using this on my external WG setup and its fine. holds boost and it doesnt fall off.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by eastbay92cx &raquo;</TD></TR><TR><TD CLASS="quote">just hook it up and try it. i think the turbo produces a little more psi than your lungs. there's a spring with a ball bearing in there.</TD></TR></TABLE>

well i can register about 4 -5 psi on a boost gauge lol. i figured i would be able to blow SOME air through one side of the MBC.

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by vietjdmboi &raquo;</TD></TR><TR><TD CLASS="quote">i have this mbc and i love it. you are correct the arrow does point towards the WG. i am using this on my external WG setup and its fine. holds boost and it doesnt fall off.</TD></TR></TABLE>

thats good to hear then. so VAC line goes from MBC to WG in direction of the arrow.

i guess ill just try to find a friend that has one and see wha theirs does as far as pressure from one side through the other

 

just sell it to me then

 

i have this one and it works great. hook it up like you said and let it rip!

 

i got this two days ago and did the same thing
heh thats funny. i blew into my boost gauge too lol i guess its something we all do but just dont talk about

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by AbitAvenger &raquo;</TD></TR><TR><TD CLASS="quote">i got this two days ago and did the same thing
heh thats funny. i blew into my boost gauge too lol i guess its something we all do but just dont talk about </TD></TR></TABLE>
werd lol.

did you blow into the MBC in the direction of the arrow and notice that you couldnt get any air through even though you were blowing teh correct direction? and did you hook it up and it still worked anyways?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Nextelbuddy &raquo;</TD></TR><TR><TD CLASS="quote">werd lol.

did you blow into the MBC in the direction of the arrow and notice that you couldnt get any air through even though you were blowing teh correct direction? and did you hook it up and it still worked anyways?</TD></TR></TABLE>i blew into it and was like wtf why cant i get any air through, and i was gonna search around and see if anyone has thought the same thing as me, but your post saved me the time of making my own

I have yet to install it but i will let you know how it goes. I'm sure they wouldn't tell us the wrong way to install it or else 509280183091841 people would have been like omfg j00r gonn@ ov3rb00st

 

its right... arrow towards the wastegate.