Alright, I have a tial 38mm with a big red spring with a small red spring, so technically it should open at 15psi.. well the turbo spools at 4500 and builds 10psi around 5500 (it's a big turbo) and holds steady until I let off. What would cause the gate to open so early?

I've checked for exhaust leaks and re-clamped all of my couplers, and checked the intake manifold for any leaks.. any ideas??

 

just realized I misspelled "Strange".. haha it's been a long day