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boost control

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danyz250f

15+ Year Contributor
631
6
Mar 13, 2005
Rexburg, Idaho
Ok I just put my new fmic on and I have a evo 3 16g with an ajustable waste gate and I cant get the desired 12 13 lbs of boost I want. With out a mbc I can get 10 lbs of boost wich is ok but I dont get full spool untill like 5000 rpms. With an mbc I get full spool at like 3500 -4000 rpms ish and the boost goes to like 16lbs and the mbs is backed allmost all the way out. I seem to hit fuel cut at like 15lbs and that is not cool. I did a boost leak test and there is a small leak I guess in the intake manifold where it bolts to the motor, but this doesnt really leak untill 14 lbs.

How do I get it to spool at like 3500 rpms and have full spool with like 12lbs of boost.
 
Yes I dont know if you read the top post but I did do a boost leak test and found a leak in the intake manifold but it is very small.

But I would like to know how to ajust my actuator properly, and if I even need a mbc?
 
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