boost leak?

[DarkInferno]

you could have a dodgy flexi joint causing the exhaust leak AND a boost leak...

14psi is standard so if the turbo/pump isnt modded thats about right

Well yeah which is what was making me suspect the manifolds/pipes rather then the turbo but I was expecting it to spool up before 4k

The pump has had its fuelling increased and the aggressive side of the LDA.

's why I have it in my head its from the exhaust before the turbo, so it leaks and doesn't spool at low rpm but works fine with high exhaust flow.

But that's just my theory and I'd like a little more expert knowledge on the subject