SLURP!!!!!
The new unit is known as an Eaton Twin Vortices Series (TVS) roots supercharger, which features twin four-lobe rotors and offers a significant performance increase over the already impressive previous unit. Where the standard roots unit delivered compressed air in waves, the TVS unit offers continuous airflow for more power and smoother power delivery. Boost pressure is up significantly, from 11.0 psi to 17 psi. Supercharger efficiency is also up too, nearly 30 percent, while mechanical losses have been reduced to just 10 percent. A liquid-cooled intercooler helps keep the unit cool, preventing power-robbing heat from sapping the system’s efficiency.
There’s more. Stronger and more advanced internal engine parts assist power production and help maintain the high level of reliability you’ve come to expect from this 1,498cc, DOHC liquid-cooled inline-four. Revised pistons team with a pumped-up valve train that includes stronger, hardened-nickel valves with thicker stems, a beefier cam chain and reworked camshafts with revised profiles and increased durability. Stronger crankcases help harness all this extra horsepower, while an advanced and more efficient oil cooler helps minimize temperatures when the action gets really hot upstairs by sandwiching oil between two cooling jackets instead of one as before. The result is a staggering 300 horsepower, a significant jump from the 2010 Ultra 260X.