Weak at low RPM's - Ford Powerstroke Diesel Forum
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post #1 of 3 Old 02-21-2011, 06:56 PM Thread Starter
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Weak at low RPM's

Is it normal for the 6.4L to seem like it has no power until somewhere around the 2500RPM mark??? It accelerates sooooo slow until I really put down the throttle. As soon as the RPM's come up and the boost reaches about 25lbs or so, she takes off. I'll be doing the DPF delete soon, but want to make sure the truck is running right to begin with.

'08 250 Lariat 4x4 c/c s/b
H&S Mini Max
Cat/dpf delete
S&B Cold Air
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post #2 of 3 Old 02-22-2011, 08:39 AM
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I think so. I whined and complained for 3 months about sluggishness and things like that to my dealer until he let a tech go for a ride with me on my regular travel areas. I was told that it was pretty much in line with others he has been in, driving and riding. He said, personally, it can be much more responsive tuned and dpf removed, but, as a person that is employed by Ford that he couldn't recommend me doing that.
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post #3 of 3 Old 02-22-2011, 07:57 PM
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its hard to say what you think slow is, but i hardley ever go over 2500rpm and my pickup doesnt feel slow considering it weighs so much. before and after the delete that is

2001 f250 extcab lariat 7.3
2003 f550 cab&chassis 6.0
2008 f350 crewcab drw 6.4
2010 f250 crewcab kr 6.4

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