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'92 CX Twincharged D
d15z7 or D16w8 head is same casting as y8 head, the only difference is the y8 head doesn't have the extra oil hole drilled for the double vtec solenoid. I run one of these heads in 1g Integra as part of 13.25:1 compression motor. Thompson cycle sound very similar to Miller cycle used in Mazda's Millennium sedan in late 90's. What supercharger are you using? In my Twincharge D-series builds I use a SC14 88cid supercharger with a a/c clutch so it can be turned on/off with ecu or a switch. and turbo can still push air thru when clutch disengaged.