Originally Posted by L3YMS

I did it a while back and I found some good instructional stuff on youtube. I think it was as easy as blocking the output from the turbo by putting a plastic cap from an aerosol bottle in the hose with a jubilee clip, and similar on the inlet hose to the manifold/throttle body.
In one of the caps I put a tyre valve that I got from the local tyre fitters with some glue of some sort to further seal it if necessary.
Then I hooked it up to a 12v electric tyre inflater with gauge, footpump would suffice I suppose, and see if it holds pressure. Dont overpressurise it though only go to whatever your max boost is plus say 10%.
Any leaks will probably sound like a scream like you said, further check all other joints with soapy water in a spray bottle.
If it seals really good I suppose it should hold pressure for a long time with the footpump disconected. I guess FMIC are far more common for leaks due to stone damage & extra piping/joints Vs a TMIC.
I did it this way because it worked for me but I don't know if its the 'right' way or not as I am not as experienced as others on here.

Originally Posted by mickywrx

VTA or re-circ?