sumfatchin:
0.76bar = 11psi (1bar=14.48psi)
I have never used tolulene but it would reduce knocking. Do a search and I'm sure you'd find some info on it.
The fuel cut dosen't work because I've completely disconnected the standard boost solenoid, so the ECU isnt getting a boost signal. (I'm using an EBC)
Advan_01:
I'm not going to take my stock turbo past 0.8bar now. On the very rare occasion I'd run 1.0bar (very cold nite, 1 run)
And finally, my problem definately bad fuel, I ran it out, and filled up with fresh Ultimate, reset the ECU, threw in some injector cleaner to be safe and it improved straight away....