Ford GT Forced Induction Test - Breathing In Rare Air
5.4L Ford GT-Stock vs. Boost and Bolt-ons
The great thing about a factory supercharged car is the ability to dial in more power. The installation of the Kenne Bell HCD drive assembly allowed us to run a smaller blower pulley (2.75 inches) that increased the peak boost pressure from 11.5 psi to 16 psi. The Accufab throttle body and x pipe system were also on hand to improve power. The combination netted an increase from 643 hp at 7,400 rpm and 545 lb-ft of torque at 4,900 rpm to 715 hp at 7,200 rpm and 638 lb-ft at 4,900 rpm. Increasing the blower speed offered sizable power gains throughout the rev range, but the gains tailored off at the very top due to the limited flow rate of the factory 2.3L blower.
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