you feel the kick of the turbocharger a bit more imo, but thats probably cause the supercharger always has a pick up and go so theres nothing to not feel .

I like both, more potential out of a turbo really, but i prefer a supercharger for a daily driver

 

I'm partial to turbo's myself in my 240SX it spools fast i make full boost by 2700rpm. and when that sucker spools its like governor swartzenegger just kicked the car in the ass end it throws you back so hard. but i also like superchargers the sound is nice but also i like the sneak up affect it gives you when you let off the gas you realize just how hard you were accelerating. I'm just a forced induction junkie i guess.

 

Nissan released the March SuperTurbo in the late 80s. It used a 900cc 4cylinder with a supercharger and a turbo to give it unmatched torque and power in Japan's under 1.0L racing classes.

Dude, you have a VG30ET powered 240SX!? It's always been my #1 project to stick a VG30DET into a 240. Sorry to go off-topic.

I personally love them both, but I don't think a supercharger can match the low-end torque rush of a well-tuned turbo. Yum.

 

The positive displacement supercharger sets it apart from any turbo because it provides on demand power instead of being tied directly to RPM's. It allows for a more dynamic fuel curve.

Wont get that out of a turbo, or a centrifuge SC for that matter.

 

I'm banking on turbo's majorly pulling away from superchargers in performance once the following trends become common:
1) turbo diesel engines (tuned for performance)
2) dynamic inlet veins for turbos and other anti-lag technology becomes more readily available

For #1 above, the the physics of diesel engines means that octane is not an issue and boost is really only really limited by the strength of the engine components. Superchargers have much more to contend with that limits boost capabilities (not to mention that they don't work well, if at all in diesel apps, that I am aware of at least).

For #2 above, the trade-off from small to large turbos has been surpassed with anti-lag technology that had been around for a long time but still isn't mainstream. Some of the old Shelby GLHS Chargers has variable computer controlled turbo veins to almost eliminate lag, and that was in the 80s, lol. Also, take the Prodrive prototype (P2 I think) that employs "anti-lag", which is some mysterious system, lol. No lag there with boost throughout the rev range.

SCs are just not capable of surpassing their own current inherent physical limits the same ways that turbos can.

However, my points are completely moot because most production and after market turbo applications do not employ the benefits of #1 and #2. But as far as potential goes, turbonium wins IMO.

 

superchargers seem to work better on bigger engines while samller engines get alot more out of a turbo IMO.