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I think the turn-off, for some, of a centri-SC is that it closely mimics the stock torque and power curve (power and torque climb exponentially-ish and RPM increases), while most PD superchargers create more power and torque across the entire RPM band. Much like a turbo, a centri-SC will make most of it's power once it's spinning fast enough to compress enough air, except turbo's can be sized differently to make that power in various places, or doubled up to make power in multiple places. A PD supercharger generally makes less peak power and torque than a centri-SC, but it makes it's power across much more of the RPM band, and in more noticeable amounts.
Since I'll, ideally, be AutoX-ing my car, I need power where I don't have to constantly keep the engine spinning to use, so I need midrange and low end power and torque, which a centri-SC doesn't offer. Also, since this car is my DD, I'd like to not have to drive with the engine wrapped up to 5k+ all the time to feel more power from my engine. My problem with this car is that all of its power is way up high, and a centri-SC just makes that problem worse.
Also, the vortech kit is nearly $5k, which, while I'm sure is an exceptionally quality piece of kit, is an obscene amount of money; especially since there are quality turbo kits and quality SC kits available or becoming available soonish.
All of this is why I don't like centri-SC kits, don't care that they are better on paper because some thermal-dynamic engineer mathematician said so, I don't care that they make X peak power (my car is going to be used, not dyno'd all the time), and why I don't care that "because racecar".
I'd REALLY like a twin sequential turbo set-up, like the FD RX7, but people like to say "it can't be done" with this car, so I'll probably just wait and see.
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