Why a Roots blower instead of a twin-screw?
We’ve dealt with the twin-screws, and they’re a nice piece. However, the Eaton-manufactured Roots designs have some advantages. They’re very reliable, well packaged and less expensive than the Opcons we used to use. They also have better efficiency at lower to medium boost levels and have been shown to be capable up top. It’s worth noting that nobody currently uses a twin-screw supercharger in a mass-produced car.
