freeunit

what is the difference between these two? What are the pros and cons of both of them? which would you suggest? Do you know any good links to buy from?

beezy

I think roots make mroe power down low and the twin screw is more midrange? ANd I think the roots gets hotter quicker. I could be wrong though, haven't read up much on it seeing as it is out of my price range for quite a while

mustangmike01

I have roots s/c. The roots gives you max. boost at like 2500rpm. The centrifugal s/c makes max. boost at max. rpm so the highter you rev the motor the more boost you make.
I drove a transam with a vortech, I did not like it. I like puting my foot to the floor and making max. boost.
If you have a GT and you what to go with the roots there are only two roots out there the saleen and the KB that I know of.

David_K

Ill tell you. i just ordered a centrifugal kit for my S281 and my SA-15 has a roots on it. but i think the sa-15 blower is broken or something cuz the gauge shows a max boost of 2 PSI and the S281 is faster at the moment w/o any nitrous

Guest

Roots will boost you throughout the rpm band, a Centrifugal will provide more boost through the engines "sweet spot" like a turbo (but with less "lag" down low.)

A roots will also take power to make power since it's belt driven.

I'm putting a roots on the Civic once I get 2500.

David_K

So is a centrifugal s/c. both are belt driven.

Guest

I stand corrected.

I never researched a centrifugal setup before.

beezy

Aren't all S/C belt driven?

David_K

yes.