This is in relation to the old thread on use of washers to boost our turbo. I found this at the other site. According to this, it is better to use a ball and spring boost controller. What do you think?
With no or low boost the wastegate is "closed" and all the exhaust from the exhaust manifold is sent to the turbo's turbine to spin it up. Under stock conditions, as the turbo produces boost pressure, it is transmitted to the wastegate via a small hose. When the pressure rises to a point which is set inherent to the manufacturing of the wastegate, the wategate "opens." This allows exhaust gases to bypass the turbo and keeps the turbo from spinning faster and creating more boost. Without a wastegate, the turbo would keep spinning faster and faster as the exhaust gases increase, until the turbo bearing gave out and the turbine self destructed--this would hopefully be before the pressure ruined your engine!!
Install a ball and spring boost controller. It will only cost you 300 pesos by doing it yourself. This is the coolest way to control your boost and boost creep. The wastegate will not crack open until the ball pushes the spring at a certain pressure, giving you faster spool. Adding washers will only increase your boost but the response will still be laggy, bec. the wastegate will prematurely open and release pressure to early. You don't want to release pressure until the preset boost was met.