mdec

@Hypertek - any reason you would favor the Electrical over the stock Mech Pump ?

Thanks for all you inputs guys. Seems like I have 2 options as far as dealing with the electric fuel pump goes: Option 1 - add an inertia switch to take care of the safety interlock issue. Option 2 - simply disconnect the pump, as I have a mechanical pump (running ztherapy SU's) Apart from backup in case the mech pump fails, does anyone see any benefit in keeping the stock epump ? it is orig & must be close to end of life. As far as the replacement Alternator goes I will probably order the 280zxT item - I believe the turbo version adds ~ 10A over the NA (~70A ?)so hopefully will provide a little more juice at idle as well.

@lowcarbz - thanks !

Well thanks Guy's, but these recommendations are all for the 240Z - I was looking for something more turnkey that will work with the 260z & allow the stock electric fuel pump to continue to function.

I have an early 260z & want to improve reliability by upgrading the Alternator - so doing away with the external VR. My idle rpm drops when I turn the headlights on so I think I would also benefit from an increase in Amperage. From what I have read, for the 260Z the VR also seems to drive electrical fuel pump relay's so the plug'n' play MSA Alternator upgrade solutions are not going to work. If anyone with the early 260z has made the switch to a bigger Alternator with the ss VR I would be interested in hearing how you did it. thanks.

NA all the way. With that said, the Motor you are considering will have a CR ~ 10:1 to 10.5:1 - from my experience that's marginal as far as detonation/pinging goes. There are ways to get around this with time & patience, but don't be suprised if you see this issue. With a header, 2.5" exhaust & SU's you will be looking at ~ 170 rhp. The R200(3.9) & the 280ZX (late) 5T IMO will have an even more profound effect than the Motor swop.