Quote:
Originally Posted by Alstann
He wants the lower psi springs so he can just simply run wastegate pressure if need be. The spring determines the lowest boost level the turbo will go to.
If you wanna ball out, 4-port boost solenoid with a "0" psi spring so you can run whatever boost you want.  |
4 ports are only useful if you have external wastegates with top/bottom ports and an ECU that can control the solenoid properly, completely unnecessary unless you want to run very low AND very high amounts of boost.