1999 Ford F-150 Lightning Kenne Bell Blower Swap
Max Power with Stock Air Box
This graph illustrates what happened when we cranked up the boost on the Autorotor. The supercharged 5.4 Lightning mill impressed everyone present, not just with prodigious power but also with the ease at which it was obtained. We wanted to demonstrate what kind of power was possible with the stock air box, MAF and throttle body in place. To that end, we installed a 2.57-inch blower pulley and a 9-inch crank pulley from Johnny Lightning. The combination resulted in a whopping 19.8 psi of boost. With the stock air inlet system, stock injectors and stock fuel pump, the Lightning cranked out a whopping 482 horsepower. The vacuum gauges we installed on the inlet system (see photos) indicating that the stock throttle body, MAF and air box were restricting the motor to the tune of 5 inches. That is an astronomical amount of restriction in any intake system. That the motor produced 482 horsepower with that kind of inlet restriction was a sure sign of things to come. The lower graph indicates the stock power level of the 5.4 equipped with the Eaton. The stock output is only used as a reference point to demonstrate the massive power potential offered by the Autorotor. View Related Article
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