Oblithian

This is very late but if anyone else sees this, perhaps these tips will help: I get around 11L/100km in my 4-speed 1975 280z 2+2 under mixed driving conditions (using regular fuel from shell). But when I first bought the car I was getting half that. After I adjusted the ignition timing the fuel economy improved greatly. Then I replaced a leaking injector hose, and it went up ever so slightly more. So a zx, which has a 5-speed and a lower drag coefficient ought to manage better gas mileage than me (assuming you drive like I do, which is to say gently).

Hello, I am new to this forum. So far, I have found the search function doesn't work as well as some other forums I am on. So if this topic has been beaten to death I apologize, but I did look (both on here and through google). As many posts here have acknowledged, the stock alternators on the S30 leave much to be desired (particularly at idle). I found sites discussing swapping to smaller diameter pulleys, but only in a generic sense. Therefore, I don't know what the alternator on a 1975 280z can handle ...or if it would even help. Has anyone tried putting a smaller pulley in to increase the idle alternator RPM? What are your thoughts and what size might you suggest? Obviously, it will wear faster and I don't want to over spin it. On the note of wear, what do you think of swapping for a clutched pulley while I am at it? If no one answers, I will just try swapping in a internally regulated 70-Amp alternator from a 1986 300zx.