UPDATE:
I re-installed the spring that comes with the Synapse valve when I purchased it as I had the softer supercharger spring in it as of this post.. The softer spring seemed to work best with the stage 1 kit.
Anyway, I tightened the stiffer spring to about 2/3 the way tight,ran the vacuum hose to B port ONLY( furthest from the outlet) and did not plug the A port. I also have K & N filter # RU-0060 installed on the outlet .
The sound volume has gone way done and I am getting a medium loud fluttering sound when the valve blows off. I can live with this...... Maybe
I can not get the car in boost yet to really see the result as I installed 1000cc injectors . My tune guy sent me a remote fuel map adjustment to the Gamma canned tune , just so I could get the car up and running.
The setups I had before this post were:
1) Synapse diverter valve with S.C. spring. Not stiff enough for the new stage 1.5 setup, would blow off during acceleration.
2) The turbosmart valve which also had the softer spring, and it was loud as hell.
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