whats 1.8 holes ???
i have about 8-9mm preload on my 2530 turbos on my 32gtr any less and it won't hold boost even on low psi
i have just got a new set of uprated hks actuators so we'll see how much preload i need to put on these
even with 8mm preload on the standard actuators that came with the 2530's they still open at 13psi without the boost controller switched on i can't believe how much force is behind the wastegates even at 3-4 psi of boost