2003 Ford Mustang Cobra Kenne Bell Twin Screw Supercharger - Mods For Mods Part 2
Boost Curve--Eaton Roots vs. Kenne Bell Twin-Screw (Same Pulley Ratio)
Check out the difference in the boost curves supplied by the two blowers. Even though the two blowers were equipped with the same pulley ratio (the twin-screw was actually spun slightly slower), the twin-screw blower was up by 2.5 psi at 3,100 rpm and carried that advantage for several hundred rpm. As the Eaton M112 started to loose boost pressure, the twin-screw just continued to climb, maxing out at 16.5 psi at 6,500 rpm compared to just 10.9 psi for the Eaton. The Eaton M112 works very well on the Cobra motor and allowed the guys at Ford to achieve a specific power goal at the lowest desired cost. The design and displacement of the Eaton M112 is limited for maximum power usage and huge power gains are available by swapping out the blower for a more efficient design. View Related Article
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