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!

[Smaay]

you are reading -6 inHg at WOT? dude there is something wrong! on an NA car at WOT you should read 0. so thats telling me that your gauge is not calibrated. what does it say when the engine is not running?

[easternpiro1]

you are reading -6 inHg at WOT? dude there is something wrong! on an NA car at WOT you should read 0. so thats telling me that your gauge is not calibrated. what does it say when the engine is not running?

man honestly I dont remember what It says when not running. I will def check tomorrow. my gauge is Teed into a line going to my intake manifold, Its a Tru boost EBC but it is not hooked up to control boost yet. I was running off of stock wastegate pressure (which initially read 8psi)