An LS-2, Turbo vs. Supercharger

[tyoneal]

To all:

I've heard that a well built Twin Turbo LS-2 will make gobs of power and still get 20-25 MPG.

Is this not possible with a Supercharger. (Magnacharger, Procharger, or??)

The new Superchargers boast that they hardly take any power to run when cruising. Whether actually true or not, I don't have the experience to say one way or the other.

My Goals are 550-575 RWHP with possibly a 6L80e (When and if they can be programable and trick like the 4L80e's, a 6 Speed Shrifter would be cool)

Dependablity, and as good of mileage as possible (Maybe the same as turbo?)

Don't need huge power, or huge engine just a good dependable, street friendly etc. etc.

I've never seen the Shifter work, but I saw a special on the Ferrari Enzo. The paddle shifter on it look like it would be a blast. I realize that this is technically an apples and oranges comparison, but I'm trying to create a clear picture.

This is probably a pipe dream but a properly built twin turbo LSx can really add up quick. $25-$40K

There are a mess of Supercharger companies out there, and I just want to really understand how, or if I could rest these goals without a second mortgage on the house.

Can this be done? If so how, and with what parts?

I mentioned magna charger because I think I saw an add for putting one of their units on a LS-2 Vette and getting around 700 hp out of it.

I would really appreciate any and all thoughts on this idea. I know a BBC is easy and quick, but the new technology is just awesome and I would really like to buy/make the, "Perfect" combination for a very fun engine combination on the street and track and for Power Tour.

Thanks,

tyoneal