How do I change the springs in Max GT billet actuator?

Each of the Arashi turbocharger is equipped with Max GT billet actuator. The diaphragm is enhanced for better performance and durability, and the casings are made of aluminum. It allows you to change the springs inside to reach your designated boost level. This upgraded actuator provides great boost response along with RPM range. Boost setting ranges from 0.2 – 1.79 bar, please make sure tuning is required. It also has a greater sensibility to handle boost pressures.

If you’re wondering about how to change the springs, here are the steps:

1. Loosen the locking collar using the c-spanner by turning it counterclockwise.

2. You will see this diaphragm.

3. Remove the top cap, locking collar, diaphragm, and spring.

4. Input springs according to your designated boost level; first input inner most spring, then the middle spring and finally the outer most spring, make sure each spring sits tightly on the lower spring support.

5. Put the upper spring support back.

6. Put the diaphragm back.

7. Then put the top cap along with the locking collar back in place.

8. With the c-spanner, tighten the locking collar by turning it clockwise.