Drop flywheel off for lightening

The stock Miata flywheel in 19 pounds. An ICE engine needs the flywheel to keep it revolving between power strokes. An electric motor doesn’t need one. So why keep the flywheel? It’s how the clutch is connected – and I want a clutch (some conversions don’t use clutches, but they are difficult to shift). The lighter the flywheel the better the acceleration – racers know this and use expensive ($500 and up) aluminum flywheels. My plan is to have the flywheel lightened. I called a local machine shop and they told me that only one shop in the Bay Area does this stuff. I gave him a call and he quoted me $160 to lighten it. The shop isn’t open on weekends so I arranged to drop it off on my lunch hour.