i have a rail i just traded and it has a mazda motor in it. have seen the rotary before and this one is a mazda 1978 to 80 i am thinking. was wondering if that will fit a rotary as well. as far as the conversion works any one have any ideas on this conversion. just let me know. the motor runs good road around in the -10 weather yeasterday. just a question to help me find out more on this rail.