Got 2 x turbonetics evolution 38mm wastegates, and im putting in the stiffest spring that comes with the gates which is a 9PSI spring, however those are adjustable wastegates with the adjustment screw on the top. Wondering if I could squeeze 15PSI out of the 9psi spring just using the adjustments on the wastegate (I know for a fact it would do 13 though).

did anyone try this before? This is a temp solution, till I get my boost controller solenoids fixed. However, i dont want to buy another boost controller right now.