Amperage vs psi

[DanGeorgian]

i have been running 65a @ 80psi.
was recomended by my lincoln guy.
i am going to run 45a for this project to see if it fixes an issue.
do i need to change my psi to the tip?
if so what should i set it to?
all im finding is slpm and scfh.
i dont have that gauge lol

 

[Dnmeistr-LECS]

Leave the pressure at 80 psi for all amperages, though depending on the torch length 25 vs 50 pressure may need to be increased for 50' lead.