Could be as much as negative 8.I see that you and ninja eater have had problems. What are some key facotrs that contributed to your breakage? Do any of these turbo builders supply a PCIIIr with any maps? I have read some stuff about ignition timing can melt the motor quickly if set wrong. Actually I think I read it should be retarded almost -4 or more. is this correct? Is this some of your problems?
Thanks