ok my problem is that my boost is not reading what it should. When I first got the swap done boost would be about 8lbs in 1st and 2nd and about 11-13lbs in 3rd 4th and 5th gear now I have 8lbs in 1st 2nd 3rd and 4th gear and 12-13 lbs in 5th only. The power is missing from what I had. because of the lower boost. now I had a mbc and had it set to high for maybe 2 miles and hit 17-18lbs pretty much ran open boost but not for long I hit fuel cut and removed the mbc. Now I have lower boost, is my turbo going out? The boost takes longer to build now also. can my acuator be bad? tvis bad?

what kind of turbo? 3s or 5s? sorry questions i have to ask first

3sgte swap ct26 unknown milage on turbo, and when I hook up mbc I cant hold boost it just does what it wants on the mbc lowest setting. But I did not hose clamp the hoses on the tvis block off

humm boosting like that isnt cause by a bad turbo if u had a bad turbo your car wouldnt boost at all..im not sure about your tvis but is your afm is working correctly do u have any leaks in your piping(only if your runnin front mount) other then that you mbc should have help a little...humm..u said the boost is takin long to build might mean u are having boost leak issues..

No its not a boost leak, because I had 2 solid pipes made I had boost leaks with my old fmic pipe kit with couplers and elbows but now its 2 solid pipes connected by couplers to the tb,turbo and fmic and there double clamped with t clamps so I am 99.9% sure there no leaks. how many lbs do you lose on a ebay fmic can it be 1-2 lbs I know theres a presure drop when you get get a fmic. And my turbo sounds more high pitch. an€d 1 more question do es anyone have a air sound coming from there a/c idle valve its the bolt with a spring going to a bunch of vacum lines hear it now but did not hear it before and all hose are on good

Get a fuel cut defender.
Install a good quality ball and spring mbc.
set boost to 14psi in 4th gear.
enjoy the car.

ps. youll feel faster spool with an mbc then without one.