AR generally refers to the hotside of a turbo, superchargers don't have hotsides. Vortechs have different compressor "trims".

 

Yea check this out....heres a company that makes superchargers specialy for 12a and 13b.....they have a from a 5" to a 12" supercharger.

They dinoed a 4 port 13b ported and polished engine with a 7" SC
275hp
Torque: 184 lb-ft
Boost 10 psi

If you compare that 2 a stock TT with only 255hp id say its pretty darn cool.

Heres the site. Theres an awsome pic of a 13b with a 7" attched to it.....looks really sweet and shiney!!

http://www.camdensuperchargers.com/

 

With my turbos blown, I'm currently running an N/A FD myself...but not for long.

 

Yeah, those things look sweet, but I don't think many people have them, would be sweet to see an FD with one.

 

Judging from the few comments you've made thus far, it scares me to think of you tackling such a project. You obviously know nothing about the 13B or the Renesis motor. The 13B REW is a low compression motor designed for forced induction. That is why the estimated numbers for a 13B REW are so low. I also can't believe you think you're going to run a 20 psi supercharger on the Renesis. The Renesis wasn't designed for this and you would probably be forced to lower the compression of the engine to make room for all that boost. I hope you have a lot of money for race gas and a lot of spare engine parts (apex seals). You are also comparing a stock ported 13B TT (255 HP@10 psi) with a ported (not specified how much)and supercharged engine (275 HP@10 psi). I'd say the stock numbers aren't really that far off. Do you think it's really worth all that work to get a supercharged engine package that just compares to the output of a stock FD motor? I am curious to see the dyno graphs of those supercharged 13B's so I can compare them to a stock TT FD dyno graph.

 

Actually, the 13B-REW isn't that much of a low compression engine. What is it, 9:1?
Renesis is 10:1
The biggest difference is that REW rotors are made for boost and are stronger, whereas renesis rotors aren't as strong. but theyre lighter, or should be.
Some people use S4 (series 4, 86-88) N/A rotors in turbocharged cars because those rotors are stronger than the later year N/A rotors and can take boost.
And I don't think that N/A rotors would have trouble with boost, as long as it wasn't too much (under a BAR or so) but I have no idea on how strong N/A rotors are.

And yeah, 20psi is a bit high for a streetcar, but I mentioned that before.
Oh well, I think a blown FD would be great (i mean it the other way)