source has come forward with additional details about power
ratings for 5.4-L 3-valve V8 equipped 2009 Ford F-150s. The
ratings vary, whether the truck is fueled with regular
gasoline or E85 (85% ethanol / 15% gasoline).
320hp and 390 lb-ft (running on E85)
- 310hp and 365 lb-ft (running
say another person with a camera phone has revealed news that
Ford has yet to officially confirm, on the forums of our
good friends at Ford-Trucks.com. Last time it was the upcoming
4.4-liter diesel V8 destined for the 2010.5 F-150 and Super Duty,
this time it's the power ratings for the freshened 5.4-liter V8 that
will sit under the hood of the new 2009
Ford dealer attending training for the new half-ton snapped a picture
of an information placard (below) that reveals the six-speed
automatic 5.4-L V8 will achieve 320-horsepower at 5,200-rpm and 390
lb-ft of torque at 3,500-rpm. The new numbers are a modest improvement
over the 2008 Ford F-150's 300-hp at 5,000-rpm / 365 lb-ft at 3,750-rpm.
5.4-L V8 uses Ford's new 'open valve injection' technology.
As the name suggests, open valve injection injects fuel into the cylinders
while the intake valves are open (instead of closed like during conventional
combustion cycles). The incoming air improves the mixture of air and
fuel before the 'charge' is ignited. Ford says the result is increased
horsepower during towing, higher RPMs, and an improvement in emissions
from the more efficient burn.