I bought a MBC from a guy that makes they locally today. Its pretty good Quality but im a little worried about blowing my car up with it... but anyway here is the question when your using the boost control do you want less spring tension for low boost and strong tension for high boost??? or reverse that... like start with the almost all the way out and work it down slowly??? or start with it all the way in and work it out slowly??? Or should i just ditch this whole thing and get a Turbo XS MBC??? anyway any feedback i would be grateful... thanks

 

help please bump

 

start with it all the way turned out and work your way in half a turn at a time

 

so with the spring very tight.... hmmmm seems like it would be the other way around........

 

Start with the valve as loose as it will go. This should give you between 12 and 14 psi depending on how "tight" your wastgate is from the factory. From that point just do the whole "give it one turn and test" routine till you have it set where you want it.

Keith

 

thanks i did a little more research and you are correct....

 

well now this confuses me a bit lol

 

my bad

 

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Start with the spring tension all the way in (Min Pressure), the slowly increase the tension so it will take mmre force (pressure) to push the spring, if you do it the other way around you will need alot of pressure to move the valve and probably overboost

 

Sorry [picture didnt came out

 

Usually the inlet conection to the MBC is a valve that gets pushed by the pressure from your inlet source ( Manifold pressure or turbo pressure). and the other conectios is to release that pressure (Usually to your wastegate) ideally you want little pressure to open that valve and then increase the tension little by little until you dial the boost you want.

Normally to increase the presure in the spring you have to tighten the valve or screw depend on the case or your MBC

 

Hope this helps

 

wow i installed it and what a piece of ****! it overboost then tapers off... seems no adjustment i make makes a difference.....

 

Do you have the bolt/screw all the way out ?
Did you hook up he b/c line right ?

 

someone told me not to worry about capping off the BC line on the turbo and just use it... should i tap into the bov instead???