Losing boost..

[mudski]

Cheers mudski... Will have a play around with the needle valve and see what happens.. It's currently more closed than open... Not to sure what's going on with the Dawes valve.. All looks good but I've got it wound right in til there's no more thread... It drives ok but it feels like as soon as it reaches 15psi it maxes out.. Like u can put your foot right to the floor and nothing happens? Feels like it's not only restricting boost but overall power... Thanks for the offer with the larger Id hose... If I can't get it set up how I want it.. Il be getn a diesel smart actuator set to 24psi... Herd they go alright... Also looks at one of there smart xt modules.... At e moment my egts are really low... And the 250 mark...

Dont bother about the DS actuator yet mate. I read on the other forum a few with it and reckon it was shite. Dunno how true that is though...When your running higher boost levels you need the needle valve shut almost right off. Mine was only open just the slightest bit, when running 25psi. Open a smidge too much and it was crap to drive. just send me your details bud. I'll get it off tomorrow and you will have it by early next week...You got nothing to lose...

@ John. If the vacuum hose was collapsing, he would see very erratic boost rises. As shutting off the needle valve does this, which is on the vacuum side...

Also try this. As Roofy had a similar issue too from memory. The T fitting in the top of the Dawes was leaking on his. See if yours is sealed properly. If not or unsure, try so seal it up with some good glue or sometihng, just incase its got a leak from there. I'm starting to run out of idea's.
turbo's not pumping any oil is it? Impellor still nice and tight?