it needs a boost pressure sensor, fuel injector resistor and an air flow meter. it needs these parts from a turbo rx7 because my car was non turbo and i swaped a turbo motor into it. the compression is good. it is just getting to much gas(the sensors that are needed for the swap) and it will rip. i just dont have the time to fine tune it and get it running cuz im moving soon. it cranks over but then it just back fires from not getting the correct air fuel mixture.