I am planning to swap a B20b or z into a 95 civic coupe and I was wondering what the internals could handle. The b20b has a CR of 8.6:1 and the z has 9.6:1 or something like that. I would be buying a Zdyne gold computer from my friend who has the fuel maps of another b20 turbo. I don't know what b20 he has, but i was just curious as to what boost levels could be run safely on a relatively tuned ecu.