I have a problem with my Focus Rs any constructive comments would be appreciated.

Problem: -

Under hard acceleration in 1st 2nd and 3rd I get a really funny noise coming from the turbo, It’s like a squeaky belt noise but mechanical noise if you no what I mean. I was running a baileys dump valve and the problem was only intermittent. Last night I fitted the Standard re-cycling dump valve and the noise is there every time I put my foot down.

Any ideas??????

Jim