I just noticed my primary turbo hits the target boost level and it just drops off to about .4 on the PFC commander. Just before the switchover it picks up a bit to about .55
It does it 2 or 3 times and then its gone. I do notice that after a few pulls when it warms up it lags a lot. Its like a 2 second wait before it builds boost.
I know the primary is pushing some oil and thought that could be it.
I also came up with a theory, a crack in the manifold? might be bleeding off some of the boost...
Also, does anyone buy/need a core?