The Eaton M122H is the ultimate modern roots supercharger, This is used for our HMW M122H K.C. Supercharger kit.
The largest commercially available Eaton Roots Supercharger, The M122H, (Not to be confused with the smaller M112) was used in the likes of the Ford Shelby GT500 with its 5.8L Modular V8. This is so far the biggest purely roots based blower you can put under the hood of a BMW while the 6 cylinders are still present. Boasting an Amazing 2L displacement. Out of the box this sees a bar of boost (14PSI) with an intercooler! And that is only utilizing just over half of its potential.
Heavy modern Roots type, Dual rotor and multi lobe design, Positive displacement supercharger.