maybe like 270-280whp with headers and a tune. if you get long tube headers and cams you can maybe be around 280-290 tuned. those numbers are on the optimistic side.

and yes vortech is 100x better than the stillen. there are a few ppl making >600hp with a vortech so it has lots more potential, as with the stillen stage 4 ppl are making like 350 and thats pretty much the max potential for it.

 

What's the reasoning behind this? as far as the difference in the superchargers go. does it have to deal with one being a roots and the other centrifugal?

 

well for a roots supercharger its too small to put out any substantial power but is size limited due to how its mounted, which it doesnt even fit under stock hood as is.

 

So that's why people say it's such crap.

Unfortunately Vortech doesn't make a S/C kit for 350z vq35hr motors right? They're stuck with the Stillen.

 

Their SC for the DE is crap. I believe Stillen uses a Vortech compressor on their HR kits so its not too bad.

 

I won't even begin to tell you how much of a waste of time and money the headers will be unless you're doing cams. Not sure why nobody said so other than the fact this thread is whacked and your post was completely OT.