turbo is shite, i did have a ball bearing turbonetics one till the seal went in that, so bought a new cheapo t3/t4, well i only paid £60 for it so hey ho.
it's a bit annoying as it's been fine since i fitted it, but started getting smokey a few weeks back, i though it could have been stems or bottom end thinking the worst, so today i forced open the external wastegate (after swinging cams and ignition timing all over the place) and the gas stream was clear as you like, the smoke was very feint grey and cleared quickly hence me thinking fuel issue.
happy in some respects as bottom end should have been good for a long time and was a cheap turbo, thought it would last longer, i don't suppose forcing 26psi out of it has helped matters at all.
onwards and upwards lol!
p.s. i'm skint too