internal wastegate w/ mbc

[dsmking101]

hey guys i have a 14b turbo with an internal wasit gate with a mbc setup set at 4 psi but i was told that you caint lower boost on an internal waist gate is this true? what is the spring set at in the iwg? and is there anyway i can lower the boost and set it at a low psi? i know theres a screw or nut on the rod on the waist gate i have it in the middle of the rod i dont know were to position it .....down or up on the wasit gate rod?.... were do i position the screw and what will it do? thanks guys appricate any help

 

[9!'clipseDOHC]

If you are only getting 4 psi then you probably have a MAJOR boost leak. I have a 14b with the MBC all the way backed out and the lowest boost I can get is 11 psi. I can raise it from there by screwing the MBC in but there is no way to lower it. Also there is no adjustment nut on my 14b's wastegate arm.

 

[dsmking101]

thanks for your info....but i dident say i was running 4 psi i said i had the mbc set at 4 psi witch is most likely doing nothing since i caint lower boost only raise boost with the internal waistgate but there is a nut like a hex nut on the waist gate rod is that how i bring the boost down? or how did you adjust yours to stay at 11 psi thanks

 

[9!'clipseDOHC]

That's what I'm saying, there is no adjustment nut on my 14b's wastegate arm. I adjust the boost with my MBC. I can adjust starting at 11 psi on up.
Here is my 14b, you can see the wastegate arm, nothing to adjust.

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[dsmking101]

oh i see what your talking about now im sorry for not understanding right away this is a pic of one like mine it has thred on the rod with a hex nut.... how would i bring the boost down on this one? and what is it set at? thanks

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[BLINKY619]

oh i see what your talking about now im sorry for not understanding right away this is a pic of one like mine it has thred on the rod with a hex nut.... how would i bring the boost down on this one? and what is it set at? thanks

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i was about to post this too...!!