if you want to be a hairplitter, then anything that has anything to do with the Z is technical, since it's a piece of technical hardware.. but I don't think posts about how to wash a car are 'technical' I generally don't move stereo posts either, although technical, they're usually very individual for the situation. not 'what torque should my lugs be?'. opinion posts usually stay over here 'what do yo think about the AVC-r?', unless it turns into a truely technical discussion. 'how much does gas cost?' will stay here. 'what color should i paint my calipers?' will stay here. 'where can I get the cheapest price on turbos?' will stay here, since that answer will change almost daily.... etc.
