not building boost, am i missing something? Options

[easternpiro1]

Hi all, was wondering if i can get some feedback on something i was missing. here's the story:

recently a friend and I fixed a leak due to stripped thread in the head causing a leak between the exhaust manifold and block.

after rethreading and putting everything back togehter leak is gone BUT now im seeing much lower boost numbers after taking it for a drive.

I own an AEM tru boost controler/gauge and the boost is currently set to stock wastegate pressure (8psi) and consistently held this pressure PRIOR to fixing the exhaust leak.

as of today, my first drive out, my car would not pull past 5psi and touched 6psi BRIEFLY. I double checked my IC piping and adjusted and retightened.

when i went back out the car would only boost up to 4-5 psi adn sometimes as low as 2-3 max.



Im pretty sure its a leak somewhere but it can only be one place as the only IC piping that was removed was the piping coming from the turbo (charge side) i have checked and double checked it.

is there something im missing? any helpful hints would be appreciated! thanks!

[delusionz]

in all my troubles with turbochargers and boost on the 3sgte, the problem has ALWAYS been too much boost.

when my original ct20b went out, it made a very loud whine like a dieing animal, and then it made 0 boost as the turbo shaft snapped somewhere in the centre cartridge,

my car has always been able to make atleast 10psi boost with the clamps undone so i highly doubt its "just a boost leak"

also, using a 3psi spring in a 44mm tial wastegate im still getting creep up to 10-12psi

sounds dumb, but did you overlook checking out both sides of the turbo? you spun one end freely, but did that equally spin the other end??? to me it seems theoretically impossible to make 0 boost short of not having the turbo hooked up at all