u may have a worn speedo cable, not hard to change n won't mess with ur cluster
around $100 from nissan
mine used to jump around below 80km and steady afterwards, put a new cable n no more needle flickering
HKS site states 78.5~108kPa(0.8~1.1kgf/cm2) for the GTR - 1430-RN001 which would mean 11psi to 15.6psi
should i have boost drop issues even with these heavy duty actuators or should i be looking else??
air leaks test done (intake manifold gasket replaced) and boost controller by gizzmo ms-ibc
no need to repair if it aint broke.. its simply mis-aligned.. just needs to be reset again.. go for a drive and see if it ticks over properly, esp 9 ->0
umm mine are the 0.5bar variety as well although im looking at running them at 18psi or so.. not sure if it allows that much adjustment but whats the best way to set em while in place.. adjust both and check with a pressure gauge when both start to open??
mine was tuned at UniGroup by Yavuz and he confirmed car is left on dyno overnight so he can tune for cold start the next morning, anyways, he will look at it for me soon and will report back what the issue was