Gas vs PSD
Postmaster
Joined: Apr 2008
Posts: 4,724
Likes: 4
From: Rogersville, TN
Depends on what it is. f150, f250, reg cab, crew cab, automatic, manual, 4x4, 2 wheel drive, etc? He said what the set up of his truck is, which would put it in the 8k range. My point is that I have the same year psd as him, much lighter truck, better gearing, etc, and it won't pull with a 5.4 pulling the same weight but somehow his can out pull one with him pulling more weight.
Cargo Master
Joined: Jan 2005
Posts: 2,413
Likes: 11
He was saying his truck and trailer combined weighed 16k lbs. If his truck weighs 8,000 lbs then he was pulling an 8,000 lb trailer. That isn't too much more than the 6,000 lbs he estimated the 5.4 was pulling(assuming he estimated correctly). Saying 16k lbs for his weight just made it sound like he was pulling 3 times as big of a trailer instead of just saying what both trailer weights actually were.
He estimated the trailer weights, and people usually overestimate their weight and underestimate on their competition. He admitted he had no idea what kind of rpms the 5.4 was turning or if the guy was even trying to keep up with him(it's not a race if the other guy doesn't know about it). I would also require video proof since I am required to provide pictures and videos of everything I pull and where I pull them.
He estimated the trailer weights, and people usually overestimate their weight and underestimate on their competition. He admitted he had no idea what kind of rpms the 5.4 was turning or if the guy was even trying to keep up with him(it's not a race if the other guy doesn't know about it). I would also require video proof since I am required to provide pictures and videos of everything I pull and where I pull them.
Posting Guru
Joined: Aug 2008
Posts: 2,313
Likes: 0
From: Sunny, Snowy, CO
Depends on what it is. f150, f250, reg cab, crew cab, automatic, manual, 4x4, 2 wheel drive, etc? He said what the set up of his truck is, which would put it in the 8k range. My point is that I have the same year psd as him, much lighter truck, better gearing, etc, and it won't pull with a 5.4 pulling the same weight but somehow his can out pull one with him pulling more weight.
Cargo Master
Joined: Jan 2005
Posts: 2,413
Likes: 11
Josh really your 5.4 walks all over your 7.3?
Posting Guru
Joined: Aug 2008
Posts: 2,313
Likes: 0
From: Sunny, Snowy, CO
(I know...I'm just seeing how his pain pills affect his memory)
Posting Guru
Joined: Aug 2008
Posts: 2,313
Likes: 0
From: Sunny, Snowy, CO
His 7.3 must run on 3 or 4 cylinders if it does. We've got some nice 7.3's around these parts. My 6.4 would eat his 5.4, but he doesn't believe that either....(Too many oxy's)
Cargo Master
Joined: Jan 2005
Posts: 2,413
Likes: 11
His 1st gear 5.7 x 350=1995 lb
Your 1st gear 3.1 x 650=2015 lb
His 2nd 2.9 x 350=1015 lb
Your 2nd 2.2 x 650=1430 lb
No prayer.
Another highlight for the diesel is we cruise at around 1800 rpms and around 360 lbs of tq. That's why we don't lose momentum when we hit hills or grades.
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Elder User
Joined: Apr 2009
Posts: 685
Likes: 0
From: Spokane, WA
No kidding. Even w/ his manual transmission he doesn't have a prayer.
His 1st gear 5.7 x 350=1995 lb
Your 1st gear 3.1 x 650=2015 lb
His 2nd 2.9 x 350=1015 lb
Your 2nd 2.2 x 650=1430 lb
No prayer.
Another highlight for the diesel is we cruise at around 1800 rpms and around 360 lbs of tq. That's why we don't lose momentum when we hit hills or grades.
His 1st gear 5.7 x 350=1995 lb
Your 1st gear 3.1 x 650=2015 lb
His 2nd 2.9 x 350=1015 lb
Your 2nd 2.2 x 650=1430 lb
No prayer.
Another highlight for the diesel is we cruise at around 1800 rpms and around 360 lbs of tq. That's why we don't lose momentum when we hit hills or grades.
Cargo Master
Joined: Jan 2005
Posts: 2,413
Likes: 11
Tractive force is used on trains and farm tractors. It would that these masters of pull{what else are they going to do} would be in a controlled eviroment. But they are not. So I don't play with tractive values. They are very misleading.
Thread Starter
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Modular motor junkie
Joined: May 2009
Posts: 6,190
Likes: 8
From: Texas
The vidoe was a couple pages back.
I have not pulled that engine yet. It might be a week or two before I get the chance but I will post pics of the damage when I get into it.
Posting Guru
Joined: Aug 2007
Posts: 1,714
Likes: 1
From: Canton, IL
I found this video that may help make your point of some modulars not being able to go over 5k rpm. It's not of a SD, but it may help. 
YouTube - Ram 1500 out-tows the Ford F-150
I don't think the new F150 went past 3900 rpm at WOT. After watching the video, it seems to me that the computer was limiting the F150 to not downshift and go at higher rpms.
The dodge was WOT in 2nd gear (1.50:1) at 4400 rpm.
What you do and everyone else think?
YouTube - Ram 1500 out-tows the Ford F-150
I don't think the new F150 went past 3900 rpm at WOT. After watching the video, it seems to me that the computer was limiting the F150 to not downshift and go at higher rpms.
The dodge was WOT in 2nd gear (1.50:1) at 4400 rpm.
What you do and everyone else think?
Cargo Master
Joined: Jan 2005
Posts: 2,413
Likes: 11
Good point. That's how it was in 04 and 05. Regcab 8' bed. 4.11 rear.
Posting Guru
Joined: Aug 2008
Posts: 2,313
Likes: 0
From: Sunny, Snowy, CO
I thought you could get max tow (you could in the 08's because I had it) in a Screw, but max PAYLOAD was only in the Scabs. Maybe they changed it though.
Hotshot
Joined: Mar 2007
Posts: 10,101
Likes: 40
From: Pa
That test was done with what looks like a 2010' model which was only available with the 4.6l 2V, 4.6l 3V or 5.4l 3V. Reg cabs, SCs and Screws all could get the Max tow during those years if configured properly. During that MY the Raptor was the only 150 available with the 6.2l. If that test was done with the Screw with the 6.2l even without the max tow I'd bet it would have slapped that Dodge around pretty hard.