Hallman pro rx boost controller

[northern turbo]

Who is running the heavy spring with a 16t? How much boost?

 

[Motleyone]

I run it on a 2871 12 lbs and up

 

[robb]

mine is a 19t turbo 4.5 turns in with the heavy spring at 7000ft gives me 18lbs of boost

 

[northern turbo]

boost

Thanks guys,I am trying to raise the boost over 13 psi with the light spring
screwed in all the way,(thought I might have a boost leak).I will try the heavy spring.Light spring was good from 9-13 psi.