The Ford Diesel Website - Re: Mileage/Power Improvement After Brea


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Re: Mileage/Power Improvement After Brea

Msg # 5009 of 8004 on Powerstroke Diesel Conference (1)
To: Dave, From: Mike McLaughlin
Time: Monday 01-26-98, 11:55 am
Oh man - just read this note (monday) - haven't 
read the 20 responses yet, but this is EXACTLY my 
setup (truck) and EXACTLY the same problem I'm 
having - EXACTLY.  Can't wait to read the rest of 
the thread.  Lets keep in contact - I'd like to 
hear how it turns out.
Mike McLaughlin
  On Sunday 01-25-98, 02:12 am, Dave said:
-Folks,
-
-Just picked up a new '97 F350 CC PSD, E4OD, 4x4,
-4.10 gears. Sadly, it seems to both have less 
power
-and get poorer mileage than my '94 F250 SC IDI
-factory turbodiesel (w/ aftermarket turbine 
housing
-& exhaust), 4x4, E4OD, 4.10.
-
-On other PSDs that I've driven, when tromping 
from
-a standing start, you can see the engine rev to 
the
-torque converter's stall speed, and then, over a
-half second or so, feel the boost come on, via 
the
-seat of your pants, with a nice satisfying rush.
-This one is much less distinguished in its 
coming
-onto the boost.
-
-I don't hear any kind of rushing air sound, so I
-don't think that the exhaust butterfly is 
sticking
-shut.
-
-At about 175 miles, took it out solo, with an 
empty
-bed, for about 200 miles, out and back, on 
terrain
-that gains elevation (1-2000 feet) fairly 
smoothly
-over the hundred mile radius, starting pretty 
near
-sea level. I got what I consider to be a 
miserable
-16.1 MPG, having filled the tank to the brim 
both
-before and after the run.
-
-On some steeper hills around here, it would 
barely
-pull beyond 70 MPH, taking 5-10 seconds to gain
-each additional 1 MPH. My recollection of my IDI 
is
-that it accelerated in that situation at least
-twice as fast.
-
-So, my questions to y'all are: Is this typical
-performance? Anybody else disappointed? Any
-suspicions as to what's up? How much improvement
-can I expect as the engine breaks in, and how 
long
-will that be?
-
-TIA,
-Dave

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