I have a project 75 280z with MT. I want to go l28et. I HAVE searched, but I still have a few questions.  
  
I'm buyin a rebuilt motor from somebody, but I dont know the year of it. For a l28et, does it have to be from a Zx?  
  
Also, is there any wat to tune the stock ecu, or do I have to find a z31 turbo ECU? Other than ecu will I beed any other engine management systems? 
  
Any help will be appreciated.