Spring pressure on waste gate

How many spring bars in wastegate do I want use if I am pushing the turbo to 50psi boost with a 3 port controller

Hello, i recommend the closest spring pressure to your minimum required boost without boost control, you will need to be at least over half the maximum boost pressure you are aiming for (the general rule is a three-port solenoid will do double the spring pressure and a four-port will do three times spring pressure )

Regards Ross

Thank you for help I am building a 900 whp sti and I was stuck on that....so 2 bar or 30psi spring for 30 psi to 60 psi of boost pressure