Hi all,

I'm about to begin the process of swapping out the automatic tranny in my 72 240Z with a 5 speed unit from an 82 N/A 280ZX. I'll be keeping the 3:54 rear end in my Z.
Since the tranny will be out I'm considering lightening the flywheel. I've thought about an aluminum one but I think that may be too light and am concerned about the longevity and reliability of it. Does anyone have any suggestions about how much weight can be safetly removed from the stock flywheel.
The car will be used as a daily driver with a good amount of spirited driving. I commute daily 100 miles with a good portion of that commute in twisty hilly areas (fun!!!!!) the majority of the commute is highways. So if this would affect how much mass to remove (i.e. not necessarily the most that could be removed.) I'd appreciate any feedback.
Any suggestions would be greatly appreciated.

Best Regards,

Landmizzle