boost is normal peaking at just over 10psi and holding 8 - 9 psi
fuel pressure is normal and rising correctly
running on esso super unleaded
new plugs new temperature sensor new turbo
just rolling roaded at 231bhp with just a filter and exhaust
but now seems to be holding back it sounds retarded eg exhaust note very loud and raspy and exhaust gas temp sometimes gets dangerously hot.
when i stick my foot down it boosts normal but holds back, then bursts in to life at about 5000rpm then tails off again...... it doesnt do it all the time and it dont matter weather its hot or cold weather........
anyone got any ideas what it could be cos its baffeling me.........
something must be making it retard bigtime but i dunno what??
any help appreciated chaps..........