I recently swaped from a jam nut style brass boost controler to a hallman both manual controlers i was tunes at 28 so in process of dialing in hallman but for some reason i can't get over 20 psi with it for some reason

 

Is the flow going in the right direction through the boost controller? And also make sure that you're doing the pull in 3rd or 4th (i know thats not what it is, but want to make sure that's what you're doing)

 

i believe so i set it up same as brass boost controler was the side outlet going down towards turbo and other line coming into back side or fitting inline with the knob i didnt have instructions so just put it on same as exsisting one

 

You are probably running the stock hallman spring. Do you have the stiffer spring?

 

thinking it has wrong spring inside of it

 

i'll have to get sitffer one to get to 28 psi ha guess we posted at exact same time

 

OP: Can you post up a pic or drawing of how you installed your new MBC and arrows illustrating which hose goes to where exactly?

 

i am leaning towards the spring but here is best link to pics i can find http://www.hallmanboostcontroller.com/howto.html i am using a different boost line from older controler but the B line is surely going to the wastegate actuator i swapped old one on for now and will test it later i guess i have to find a way to get the stiffer spring

 

Yeah, you are good to go. If you are unable to boost over 20# then you could try increasing wastegate spring pressure by rotating the turnbuckle on the end of the threaded actuator rod.

 

i think i need the stiffer spring for controller i took it apart and was definatley the weaker spring now question is where to get a heavy spring

 

bump anyone know where ot get heavy spring