boost behavior does not seem to be boost leak, boost builds and car pulls but not always smooth, sometimes feels like it builds in stages and if there are more people than just me in car it is more noticable more often, seems to clear up ever 4500 rpm and I believe I've felt it in all gears but first.
I guess its like hitting multiple deep water puddels like someonelse described a couple days ago. and sometimes it feels way faster/stronger than other times, totally random

710N seems to work right
I do not have a boost guage and my wastegate spring is backed out all the way (no threads showing). I have 1.9 bar spring never yet installed

please help, this is driving me nuts.

also believe turbo is burning oil, get grey smoke at idle and I guess also when I stomp on the gas. don't know if this would have anything to do with it.

I'd start with the coil boots (cheapest).

I have tested the coils and they all jumped bright and clean same distance, only tested each coil once though and ended up melting the tester wiring. my helpers (mechanics) were nervous to keep testing sparks.

I do not rule out that it may be a coil problem, i think it may be as well. seems to happen more often when car has been run for awhile. aka gettin hot which makes me think weak coil, yes?

thanks will run diff. coil setup and see what happens, I'll call back in the morning:)

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