Boost Controller But No Increase In Boost????

[nickstalontsi]

I've got a 95 talon tsi. Mods- 14b turbo, LIC piping, 550cc injectors, FPR, rewired fuel pump with walpro 155lph, iridium plugs, intake pipe with k&n, 1g bov.

problem. installed a MBC feed line to MBC comes from Lower intercooler pipe, outline from MBC goes to wastegate. Boost leak checks out ok with no leaks, compression test is 173 across the line. but adjusted MBC in different spots still runs max of 15psi....im looking to push into 16-17psi. why isnt it working?

 

[95-talontsi]

How far have you turned the mbc in? Maybe try going further? From what your saying it seems like you have it hooked up right. Do you build boost fast? Possibly your wastegate is stuck open?