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I just pulled the engine from my colt (it was built by someone else so it had the f5m21 trans with the 63t.
I don't know what kind of clutch and flywheel this is. My guess is it's a 2.0 na setup. It's smaller in size than the turbo. The crazy thing is the splines are the same. It slides right on a f5m33 trans. So why the hell wouldn't everybody just use the turbo clutches?

I was POSITIVE I read 100 times before the splines/ size of shafts are different.

The reason they don't use the larger clutch is because you need the larger flywheel to go with it. That's all I can think of, anyway. I used a turbo (225mm) clutch and flywheel in my Mirage with the KM210 trans and it worked perfectly.

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91 GSX - 511fwhp and 352 lb/ft 25psi 110 octane, 7.68 @ 95.9mph 1/8th 21psi 91 octane, 11.93 @ 112.9mph, 117.7mph best trap speed, 20psi 91 octane
98 Volvo S70 T5 - DD

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I thought you had to use the n/a clutch with the f5m21 because it wont clear a bigger flywheel from the turbo.

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91 Summit hatch "Sunchaser" R.I.P.
94 Mitsubishi Mirage "4dr"
06 Kawasaki Ninja 250r "daily driver"

Yeah it musr be size/clearance issue. I think i alwsys just assumed the spline would be different. You could use an awd flywheel i bet, youd just have to modify the starter mount location so the starter would engage. Then you could use the stock turbo clutch. It looks like my car had a stock jobber n/a clutch. It looks brand new. Im surprised it held up to 240ish hp for the brief time i turned the boost up to 15 psi. It worked awesome. I always wondered why it had such a nice feel. Probably the perfect clutch for 10 psi and under