if u take the turbo off etc it will run like shit, the car is meant to have a turbo on it...mayb try n find a rb25de neo motor then do some work to ur handling etc n some work on the engine then turbo cos a rb25de+t would be an animal...u would need an engineers certificate etc. I saw a rb20 de last night at RE customs make 86rwkw sounded tuff as but i think 25de is the way to go