Where are you guys mounting your ps92 coil? I have a dc2 turbo and have no idea or room where to mount it. And does it matter if its mounted horizontal,vertical, or flat?

 

in a place closest to the coil with the least amount of heat and vibration. The heat and vibration are what kills coils. The length of cable should be short so you can actually get all the additional power from the coil ( the whole reason you bought it) so keep it as close a practical to the coil. Mount it on the shock tower with rubber isolators.