Blow off valve spring tension and blow off flow rates are independently adjustable. Users can independently control blow off valve reaction time and the volume of air expelled when the valve opens.

Simply twist the screw to increase or decrease spring tension, adjusting blow off valve response. An internal adjustment controls the airflow rate while venting boost pressure. The added adjustability allows the tuner to vent less air for low boost applications and more for high boost applications. Custom tailored venting will minimize your boost lag between shifts.

See sätib piiri mis rõhult sul atmosfääri ventileeritakse.
Mina panin selle paika "surge" hääle järgi, et võimalikult vähe turbot killiks.

Originaal by-passi võtsid ikka ära?

You want the spring as soft as possible without leaking boost at peak pressure. If the spring is set too soft then the valve will not close fully resulting in a boost leak and idle problems. If you set it too hard then the valve will not fully open, close too early, and have compressor surge.

Trial and error with an accurate boost gauge is the perfect way to find the right setting for your vehicle.