White phase 1, now with added truck turbo and massive head gasket failure

[cwspellowe]

Looks to be quite laggy from the graph? Still personally think the hotside is too big, if you had the engine revving to 6krpm then fair enough but it doesn't look to be at peak boost until pretty much 3krpm.

Was this not a twin scroller too?

And as said, don't worry about an 11mm until you can get it boosting clean.