Boost leak turned out to be the throttle body, more than likely the water meth damaged the seal or whatever is in there. I'll pull it apart for a look, might be able to repair it. Anyway I put a new TB in there so it's sorted, and I bought another one just in case I need a spare. Still wasn't making boost though...Haltech did an update and limited the throttle to 50%. That was a fun one to solve. Now that it actually gets full throttle the turbo is in positive pressure before 2500rpm. I've only done one quick run at 26psi with no timing in it but it goes like feck with that big arse turbo. Don't get me wrong it has some lag to it, but I can live with that and it's good enough to chop at roll racing.
Will get it back on the dyno one day to see what I can do with it, maybe Saturday.