I also think that the guy in the video is under estimating the effect of drag on the two different trailers. the trailer on the dodge looks to me to have less drag via less surface area to direct air around. The test is screwy to me. Trucks that don't match option wise, different trailers, etc....

Pretty lame test......

 

oops, doubled up....

 

No matter how you look at it, the Ford just flat out lost.
Its still the better truck, but it has steeper gears and less HP.

My 2V V10 makes the same power as the F150.
The Ram would run off and leave it just the same.

 

Yea it sucked in 04 and 05.

 

After watching the video, and looking up the tires size for the F150, I think the truck had a 3.73 rear, and was pulling in 3rd gear. This combo would match the rpm they quoted for every speed they gave, and I couldn't find anything else that would even be close with the rear gears offered. In that case a downshift from 3rd to 2nd (1.52:1 to 2.34:1) probably wouldn't have realistic. 3900 in 3rd would have gone to just over 6k in 2nd. Even 3300 would have gone to almost 5100, then the truck would have had to shift back to 3rd after gaining only 2-3 mph.

At 3300-3900, I would have thought the Ford would have still been able to accelerate, but it evidently couldn't. While a slightly lower overall gear would have gotten it closer to peak hp, it wouldn't have been enough to keep up with the Dodge. Basically, the Ford was beat by a truck with a more powerful engine.

 

The diesel guys are no different. When someone claimed he knew the trucks were 6.4 diesels, Chargersfan jumped all over him saying he couldn't tell from the badges (when in fact he could). Someone else claimed to have passed a 5.4. The F150 he was talking about has an engine badge as small as the SD Chargersfan said was too small too read, but without the large, identifying red or black section. In reality, that truck could have had a 3V 5.4, a 3V 4.6, or even a 2V 4.6. Not a peep out of a diesel owner anywhere, because he said what they wanted to hear.

 

What happens when you include the rear gear ratios in the calculations? I think it would be a 4.10 for the gas, and a 3.73 for the diesel?

*Note that I "accidentally" left out 2nd gear.

 

Thanks for that explaination. I didn't know what rear gear the ford had, so I was thinking it was in 4th gear and the computer wouldn't let it downshift; but I see from your explanation that wasn't the case.

 

If you watch the whole video, you will see immediately after the first run they swapped trailers and did the run again.

 

David I'm going to combine both my replies here cause I'm on mobile and haven't figured out how to put more than 1 quote in a post.
I've defended the 5.4 and the 6.8. I've strived very hard to prove that my psd has it's mark in the towing world and that neither gasser will out tow my psd. This is very hard for me cause I'm pretty dumb and even dumber with words.
I believe I was the first to say that the badges could be seen. Not a gasser. Unless a post slipped in while I was typing. I try to keep everything 1:1 as possible. I try very hard to correct my mistakes and things that I've said that was wrong or explain myself better. I don't see you exposing your self doing math problems or making video to support what you say.
I left the axle out because the engine and tranny in the 2 trucks is unchangeable. I don't know if you could order the 4.10 in the 6.4, but you could most certainly put it in after buying the truck. What's says you now. I have 4.11 in my truck. In 04 you had a quite a few rear gears to chose from.
The 1 thing that nobody points out about tractive force is that when we start out I'm working in my max tractive force. Its very easy to achive. The gasser has to rev up to or dump the brake or clutch in his powerband. We know what will happen. He'll either lunge and slip when he jerks the trailer or slip as soon as the power is sent to the rear. Which means - tractive force. This formulas is meant to find the maxium pulling power a system CAN reach. It doesn't mean it WILL reach it.to many factors hinder it.

 

If you're going to quote or paraphrase me, you need to get it right. I called BS on it because it was a LIE from the get go. Hook up the same trailer to a V10, and one to my 6.4, and that V10 is NOT going to pass me if I'm giving it all its got. After several other posts, it turned into the badges, but that was after the 3 "I can tell by the tailpipes" crap...Once I pointed out you can;t see the tailpipes if there's a trailer behind the truck, then it focused on the badges, and I still call BS on that. Mine look black sitting in my driveway. Of course, my truck is red though. If you fail to believe that, then look at the pic on my profile. Also, learn how to READ because the guy never said "they were 6.4 diesels". He said one was a 6.4 and the other a 6.0.

 

You notice I didn't take up for the gasser guy when he made that argument don't you Several others took up for him, but I wasn't one of them. I agreed with what you said to him about eyeballing weights or truck types, whether the guy knew he was racing, etc, so there was no need to repeat exactly what you just said. So on that one, we agree.

 

What I was referring to weighing the same was the trailers that the 7.3 was pulling compared to the trailer the 5.4 was pulling. I wasn't saying the combined weights were the same.

Depends on how you compare them. If you do it in the same gear at the same speed and the same rpm, my 7.3 will win, but that eliminates half of my 5.4's rpm band(which happens to be where it makes the most power). If I compare them at the same speed but in different gears, with both starting at peak tq, my 5.4 will run off and leave it. From 0-60 the 5.4 wins. Topping a hill at a faster speed, the 5.4 wins. The 7.3 gets better mpg's and has to downshift less.

 

lol...that was my post talking about eyeballing the weight and type PSD's, and exile talking about "Did the other guy know he was racing"?...You were probably in the land of oxy-buzz.

 

I'm sorry I didn't see where you said anything to that guy. I'll withdraw my statement.
I actually meant from a dead still, or going down the highway like in the ram and Ford video. Will your 5.4 take off and leave it? I'm not taking on paper or trick work outs. Just simple nose to the ground back breaking work. Why I ask is because depending on what year and what unit its put in the HP where fairly close between the 2. The overwhelming difference is the 7.3's tq. Not getting on the tq kick I just don't know what 5.4