Evolution of the Powerstroke and F series trucks

    To compete with Dodge and their use of the Cummins B series engines Ford decided to partner with International to use their newly designed T444E.  So midway thru the 1994 model year ford shoved it in the 3/4 and 1 ton trucks and dubbed it the Powerstroke.  Since that day the powerstroke and the F series truck itself has been thru many revisions so here is the highlights

  • 1994 1/2
    • Ford introduces the powerstroke in its 3/4 and 1 ton trucks.  They produced 210 hp and 425 lb/ft of torque.
  • 1997
    • In a bold move, Ford shuts down truck production to completly revamp its truck line
  • 1999
    • Ford releases the new light and medium duty trucks, dubbed the Super Duty.  With disc brakes at all 4 corners boxed frames that were flat from the cab back, these trucks changed the light duty truck market forever.
    • The powerstroke itself went thru a few changes for the new truck line.  For starters they put a much needed air to air intercooler, it got larger 120cc injectors (up from 90cc's) and a higher volume HPOP to feed the larger injectors.  These changes bumped HP rating to 235 hp and 500 lb/ft of torque.
  • 2003 1/2
    • Ford introduces the new 6.0L powerstroke.  Many (including myself) believe that the 6.0 was rushed into production causing the early versions to be highly unreliable.  However, towards the end of the 6.0's production they did seem to get the kinks worked out.  The key changes in the 6.0 is they went from a 2 valve per cyl to 4 valve, the turbo is a variable vane design and slit shot injection.  It's also hard to argue the power output of 325hp and 570 lb/ft of torque.
    • The Super duties themselves also went thru a few small changes in design, one of the biggest was getting rid of the leaf sprung front axle in favor of a coil over setup.
  • 2008
    • Ford introduces the new 6.4L powerstroke to meet the new emission regulations.  Navistar jumped on the high pressure common rail bandwagon with the 6.4 rather than the HUEI system it has used for years.  It also went to a twin sequential turbo setup meaning that a smaller turbo feeds into a larger variable venturi turbo.  This allows for quick spool up at low RPM and still hold boost pressure at higher RPMs
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