I'm slowly obtaining parts for my F54/P79 engine build.  The block is all stock, no mods, and the head will be shaved .080 with the appropriate shims/spacers/valves.  Stock cam.   Not in any rush, I'd rather wait and save money for parts I want than rush it into the car.  That being said, I'm beginning to think that my original plan to buy a lightweight flywheel/stage 1 clutch won't be that good of an idea considering the amount of traffic in my area.  I use my Z daily in the summer, and while I take it out regularly for open freeway drives when everyone else is off the roads, It sees work commutes alongside Subaru's and Teslas. 

How light can I have a machine shop make my stock flywheel before I need to go beyond the OEM style clutch?

Thanks for the advice, guys.  I'm only thinking of reducing the weight to 18-20 lbs.  I'll ask TEP if they would do that for me.

I believe mine is 18 lbs. 

Perfect!

I was thinking more about this, which I guess is a dangerous thing. Anyway, I live in a pretty hilly area and I wonder if I’m asking for trouble by having my flywheel machined down to 18-20 lbs.  At the time I would have this done, I’d install the close-ratio 5-speed & 3.90 diff that are sitting in my garage.  Do any of you have any thoughts about, or experience with how drivable a Z would be in a hilly environment with a moderately lightened flywheel?

18lbs isn't really that light, maybe for our flywheels but 11-12lbs is usually considered a lightened flywheel.  Just shift faster☺️

My aluminum one is 11lbs.  No problems driving my end of the Appalachian Mountains.  I stall it a couple of times backing up my driveway but that because I'm trying not to disturb my neighbors.  It's kind of loud and raspy when you get the RPMs up.

Thanks guys.  I’m probably overthinking this.  We have San Francisco-type hills around here and I guess I can adjust my use of the pedals to avoid stalling with a bit lighter flywheel.

My Top End Performance 18 lb. flywheel is on my racecar, so I can't say how it is on hills, but I have never had any issues with loading the car on a trailer or driving it around the pits at low speeds.

I don't have any issues in the hills of San Francisco with a 10lb flywheel. The stock pressure plate and disk allow for easy engagement and an L28 with a 3.9 is plenty torquey. You're overthinking it.

Thanks Leon!  I’m going to stop thinking!

Leon V suggested the cheap stock oem clutch and pressure plate was fine, and it was/is. Exedy 6009 I think from amazon, $100. Works great. Thanks again @LeonV

Saved me some $. I was about to go with a $300 stage 3 kit from Center Force.

5 minutes ago, siteunseen said:

I was about to go with a $300 stage 3 kit from Center Force.

I did go with the stage 3 Center Force unit and it was complete overkill, the stock clutch would have been more than adequate, I know now.