supramk3man;1107164 said:
it might be good idea to explain how to adjust the ssqv
Mine is a non-adjustable one.
So, to adjust it, I simply opened up the SSQV, compressed the spring slightly in a pair of vise grips, then heated it up with my torch until it got red hot. Then I let it cool, and there you go, less spring tension.
If I wanetd MORE spring tension, I could stretch it slightly and heat it up.
These days, the spring has been removed completely. It's REALLY sensitive now, but it's the only way I can manage to get the GT40 to stop surging with a single wastegate.