I dunno....the 3/4 and 1 tons use auto tranny's and tow far more than 10K lbs.....they seem to be working pretty well.....

 

That's what they said about the 300-6. If I could find a new F-150 with the 5.4 /manual I would certainly try putting through the paces of my current truck. So far it ain't going to happen. If you read my other posts, it will become quite clear my thoughts on autos in a truck.

 

There is alot of potential in these engine left. They breathe much better than the wedge heads of yesteryear. Take a Vortec supercharger kit for instance.
The kit for a 5.0 Mustang went from 225hp to 326hp with 6lbs of boost That's about 101hp. The same boost on a 300hp 3V 4.6 Mustang will take it to close to 425hp.
24hp more from the same mod tells me that these engines have better breathing with alot of potential left in them.
The 5.4L is the same way, the 2V version went from 260hp to 380hp with a supercharger in the Lightning.
I'm not knocking the old school engines, my 5.0 in my Mustang is very torquey, but is also hauling close to 3000lbs less weight around.
The 5.0 in my Dads 89 F150 pul nowhere near as hard as the 4.6L in the 2008 rental truck that I am driving right now. And the 2008 is probably close to 2000lbs heavier. Both have 3.55 gears and an auto trans. Dads is a standard cab with 8ft. bed and the 08 is a supercab shortbed with taller tires that kills the gear ratio even more.
We'll just have to wait and see what the engineering gurus can do with the next 5.4L to see what kind of power gains they will get.

As for the industial thing, I don't know why they wouldn't last. There are many 5.4L's out there with over 500,000 miles on them. Mainly they are not in the industy field is that they are a faily young engine (now 11 yrs old) and they are huge in size. Even larger than a 460. They also are deigned to be run with a lot of electronics compared to the old 300 engines with a 1bbl carb.
Both are good engines, it's just that technology has passed them by.

 

Yeah, I felt the same way until I bought my 05 250...It changed my thinking...

Tim

 

An industrial engine has a different purpose then automotive. An automotive engine revs high for acceleration then returns to a lower rate of speed. An industrial egine is required to run at full speed for hours on end. A 5.4 develops peak power at 4500 RPM. For engine to spin that high for hours on end. the 300'6 develops peak power at 3200RPM. Which brings the next thing most industrial applications do not do very well with high spinning engines. Could you imagine a 5.4 spinning at 4500RPM for a 18 hour day? The 300-6 in the tractors and swathers have no problem spinning at 3000RPM for the same length of time.

 

Face it fellas Old Rust Bucket is set in his ways...if he doesn't understand torque curves then it is pointless to try and explain.

 

agreed....we'll leave it at that

 

The 5.4L makes peak torque at 3,750 RPM and there's no reason it can't stay there 24/7. Additionally, it makes almost the same torque from 1000 RPM all the way up to 3,750. So, you can run it at 1500 RPM all day, 2000 RPM all day, 3750 RPM all day. Its still got another 2000 RPM before its redlines. However much horsepower you need, it has the torque available at that RPM. The 5.4s torque curve is incredibly flat. Ford sells industrial/marine engines in both the 4.2 and modular engine families. The 4.2 and V10 are used primarily in industrial, and the 4.6/5.4 primarily in marine (because they have to run all day at a wider variety of RPMs) - none of them are exclusive to those applications.

 

You just go ahead and say that then. You still can't provide an answer though.

 

What was the question again???

Tim

 

My 01 2v 5.4L makes peak torque @ 2500rpm (only 5 lb.ft less than the 3V) and max hp@4500rpm at which it would run all day long.

 

Go back at look it up I ain't repeating it.

 

We know, you don't like technology and that's ok. So why do you come here and bash the new stuff when we have forums for the older vehicles that you praise?

 

Well, where hell is it? I'm not going to dig through all of your post...If you took the time to say that, why couldn't you have just said told us the question again???

Tim

 

the 5.4 may pull more than the 300.but the thing i like about the 300 is that is much toughere than the 5.4.the 5.4 cant take a beating like the 300 can.so 15 years down the road my 300 will be still pulling whatever ei need and the 5.4 will be at the scrapyard.as for the 5.4 making 80 percent of it peak torque at 1k rpms ive heard that isnt true.but i do believe it makes good torque at low rpms cuz my dad has one.along with a bunch of problems