[keithmac]

I mapped my 16vG60 to 12:1 afr on boost (1 bar) aprox 18 degrees ignition timing injecting pure water (1mm jet), I don`t think it`ll be worth your time to run 1.2 bar if you`re retarding the ignition by 5 degrees.

I found on the GTO 75%methanol mix worked a lot better at controlling knock, running 97ron petrol.