Yeah, they are oil cooled only. I didn't fuck them up. I bought it for really cheap knowing I'd have to do work on it. It is a pain in the ass, but I enjoy it. I'm pretty sure the tool that owned it before me tried to race it without knowing how to race and fucked up the whole drivers side of the engine somehow. Blown turbo and bad compression on every cylinder on the drivers side. He was a fucking tool.
Not all of them have the 4 wheel steering, this one does. Has a giant leak in the power steering system so I'm going to have to work on that as well. The body, interior, transmission, and block are all solid though and the 300zx is getting to be hard to find. Plus, its not costing me anything to keep it other than parts, which aren't too bad as long as you don't have to pay for labor.