Re: 4.7 sucks for towing

From: Tom Byrne (kerib@ptd.net)
Date: Mon Jul 04 2011 - 13:07:40 EDT


I have the 4.7 HO (265 HP).
----- Original Message -----
From: "M.B." <mailinglists@moparhowto.com>
To: <dakota-truck@dakota-truck.net>
Sent: Sunday, July 03, 2011 11:57 PM
Subject: Re: DML: 4.7 sucks for towing

>
>
> I suppose it depends on which version of the 4.7L you're talking about.
> The early one with 230hp and 290ft/lb had a later torque peak
> (290ft/lb@3600rpm for the 4.7L vs. 300ft/lb@3200 for the 5.2. The later
> ones (dual spark plug heads) had 329lb/ft@3950rpm, more torque but much
> higher up the rev range.
>
> It's kind of apples to oranges for me, comparing my friend's 2000 4.7L 5
> speed to my '95 5.2 with the automatic. I've never done any serious
> towing with my Dakota either, the most I've done is yank fenceposts and
> that wasn't much more than letting off the brake and using the trans
> creep to yank it.
>
> I'd say mine feels stronger in the mid range (2500-3500rpm) but the 4.7L
> has it more up top. The 4.7L had it more accessible though due to the 5
> speed. He'd get me from a 20mph roll every time because the $@#$#
> tranny won't kick down to 1st from that speed, and with the tires I have
> on it 1st gear ain't over until 47mph.
>
> I do remember the time I had about 1000lb of tile in the bed, and I
> hardly felt it other than the rear end riding nicer. On his 4.7L he had
> about the same amount of concrete edging brick for his garden in the bed
> and he had to rev it pretty good to get it up to the speed limit.
>
> Too bad you're not supposed to tow with the MP PCM, that really made a
> big difference in the 2000-3500rpm range. I'd take the 5.2L with the MP
> PCM over the 4.7L any day.
>
> I'd take the 360 over either for towing, though the only 360 I've
> experienced was in a Ram 2500, and it was a dog due to all the weight
> and I suspect it had the "Death flash" PCM.
>
> If I ever have to pull my 318 for a reman I can tell you a 360
> (330ft/lb@3200) is going back in it's place. The fuel economy can't get
> much worse for my commute!
>
> M.B.
>
> On 7/3/2011 7:46 PM, Barry Oliver wrote:
>>
>>
>> I have had my Dak WAAAY over the rating more time than I can count and
>> it never sicked this bad.. Hell, I drug a Full size CASE backhoe on a
>> 3 axle lowboy trailer with a pintle hook hitch 25 miles down the
>> highway when my buddy blew up his F350 and the Dak got the job done.
>> I suspect the *trailer* was close to 6K before the tractor...
>>
>>
>> But back on topic, my main complaint is that when compared back to
>> back with my Dak with the 5.2, the 4.7 sucks. Many of you have chimed
>> in that the 4.7 did OK or got the job done, and that's cool. How many
>> of you have had the opportunity to compare the 2 motors back to back?
>>
>
>



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