Ok, I've finally collected all the parts to turbo my vert. I was talking to a local rotary head about turboing a vert using a turbo ecu and he mentioned that I may need the interior harness to. I was just wondering if this is true. I've stayed within series for all my parts, everything belongs to an 88 turbo with matching numbers and such. Any help would be appreciated thanks.
No, you don't need to swap the interior harness. The only harness you need to swap is the emissions harness, or you need to modify it by adding a few wires (search the RX-7 forum for something like "turbo na harness" under the name HAILERS or NZConvertible).