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The reason a supercharger will be a smarter option than a turbo for the FR-S is boost control and 12.5 to 1 compression.
With super high compression you must have very good control of boost turbos do not give that. Fine control and liner boost path are what small superchargers do very well making them consistent and EZ to tune.
Turbos are better in just about every other way but for this car till they change the engine out SC is the way to go.
For RR and big auto/X I currently run a 67/65 with .58 hot side that spools as fast as the stock twins in TT and makes 750 to the wheels. For the road I run a .98 hot side and it makes just under 850 to the wheels (that’s about 1K to the crank). I am a BIG fan of turbos but they are not for every application!
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