Thanks Jason, thats an interesting point you mention about the turbo. I dont have a boost gauge fitted, (although I will be fitting one) I'm going purely by how the car performs, if I accellerate at full throttle, it'll pull quite strong up to 3,100 rpm and then it's like your hit up the back by a truck, it really slams you into the seat hard and pulls like the Devil so I'm just assuming thats the point when the turbo starts boosting. There is definately no exhaust leaks anywhere on the system or at the turbo, or on any part of the induction so perhaps the impeller is worn or similar. I would have thought, as you say, a turbo that small should spin up a lot quicker. I'll have a look at the turbo and see what it's like inside. Thanks for the tip, much appreciated. BTW, what is the stock boost for this engine, am I right in thinking somewhere around 4 or 5 psi?
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