Guys, put this in the top 10 of the worst posts on this thread. LOL

This is the same as "My v10 will smoke your PSD. By the way, I have never even been in a PSD let alone driven one."

 

Ok, what about snow plowing do I not get?
If I am missing something please tell me.

I have towed with a PSD before.

 

Have you towed with a 6.4, 6.0, or 6.7?

 

No and I have also never towed with a 3V or a TorqueShift.

The 6.7 is not even in the same class as the 6.0/6.4 IMO.

 

So what could you possibly be comparing anything to? It would be like owning a 6yr-old Samsung cellphone and comparing it to a Droid II when you've never even used anything with the Android OS on it...

 

The 6.0, 6.4 and 6.7 PSDs have more torque than the V-10. My 2009 6.4 PSD has 650 foot pounds of torque vs your V-10 that has 457 foot pounds of torque. I have 193 more foot pounds of torque than the V-10. I pull a trailer with a bobcat that weighs about 10,000lbs. In my 2005 F-350 with the V-10 I used to get blown away by the PSDs pulling the same amount of weight uphill. There is a night and day diffrence pulling a trailer with the PSD. I am not talking about a 3000lb boat I am talking about trailers that weigh 10,000-12,000lbs. Plowing snow and pulling a trailer you have more power at the wheels with the PSD.

 

lol...welcome to this forum...

 

Ok,since you're apparently new-I'll introduce you to facts.
These two videos are of my 2005 6.8L/4.10 truck, and Tom's 6.4L/3.73 truck. He had a combined weight of approx 19,000lbs,and I had a combined weight of approx 21,000 lbs.
Tom's truck 0-60 in 23 seconds:
<param name="movie" value="http://www.youtube.com/v/MwVY3Jhzefo&color1=0xb1b1b1&color2=0xd0d0d0&hl=en_ US&feature=player_embedded&fs=1"></param><param name="allowFullScreen" value="true"></param><param name="allowScriptAccess" value="always"></param><embed src="http://www.youtube.com/v/MwVY3Jhzefo&color1=0xb1b1b1&color2=0xd0d0d0&hl=en_ US&feature=player_embedded&fs=1" type="application/x-shockwave-flash" allowfullscreen="true" allowScriptAccess="always" width="640" height="385"></embed>
Tom's load:

My truck 0-60 in 27 seconds:
<param name="movie" value="http://www.youtube.com/v/7rBE0-mrOro"><param name="allowFullScreen" value="true"><param name="allowScriptAccess" value="always"><embed src="http://www.youtube.com/v/7rBE0-mrOro" type="application/x-shockwave-flash" allowfullscreen="true" allowScriptAccess="always" width="425" height="344">
My load:

Looks nothing like a Night and Day difference to me.
JL

 

My 7.3 has 75 more foot pounds of torque than my 5.4 but my 5.4 will out pull it all day long with whatever size trailer you want to hook to them. The 7.3 pulls harder at low rpms than my 5.4 does(low end torque just means more low end hp), but my 5.4 pulls harder at higher rpms than my 7.3 does at any rpm.

The big thing that you are forgetting is that it was decided a few pages back that you didn't actually have a load hooked to your truck, so your weight doesn't count

 

Thats at the flywheel. At the ground going 70 the V10 makes more at the wheels.

The 6.7 has nothing to do with this, and it will out pull a V10 with ease.



Not this again.

 

Yeah,yeah...we know who that was too. He'd have probably argued about my datalog screenshots showing the unloaded 0-60 of 7.21 seconds too. I notice when I posted that before it never got any responses either.
JL

 

And a 6.4 will do the same, buddy....

 

What matters when towing is tractive force, which can be generated from engine torque or from gearing. For example, at 2,000 rpm my 7.3 has 161 hp and 425 tq and at 2,500 rpm my 5.4 has 167 hp and 350 tq. That is a pretty big torque advantage for the 7.3, but it has less hp.

If I am towing a trailer with both of them and I am in 5th gear with my 7.3 and 4th gear with my 5.4 my wheel rpms are 643 for my 7.3 and 610 for my 5.4, so going roughly the same speed. Tractive force for my 7.3 is 1,315 and 1,438 for my 5.4. Even though my 5.4 is way behind in torque at those rpms, it has more hp and is putting a lot more power to the ground and pulling the load easier than my 7.3.

Engine torque only matters when you are comparing them in the same gear at the same rpm because at that point the one with more torque is also generating more hp.

 

Your comparing gearing and not the engines. Put both tucks in the same gearing at the same speed with the same load on the same grade, gotta be apples to apples or all of us are just blowing hot air and wearing out keyboards.

If the 5.4 could out pull the PSD, why the &ell would they not charge a premium for that engine?

Each one these engines had a specific market that ford wanted to sell in. Maybe we should have brought the Ford engineer into this thread.......

 

Because you just can't do that. If you make them run the same gearing, same tire size, in the same transmission gear at the same speed. You are going to severally handicap one, while the other will be right in its sweet spot for power. A 5.4 makes most if its power around 5000 RPM, and it can handle that rpm, a 6.0 cannot. A 6.0 makes most of its power around 3200 RPM, a 5.4 doesn't and would be gimped.

You have to put each truck in a gear that puts the engine where it makes optimal power - because you CAN do that in the real world . Diesel guys seem to have this mentality that since their truck can't downshift 2-3 gears at highway speeds and rev out to 5000 RPM - that the gassers shouldn't be allowed to either - even though they can.

Will a gasoline engine get good fuel economy screaming at 5000 RPM up a hill? No. Will it be pleasant to hear/feel a gasoline engine screaming along at 5000 RPM up a hill? No. Will the engine last 1,000,000 miles screaming along at 5000 RPM? Probably not. But will a specific HP gasoline engine pull the same load as a diesel with the same HP if you let each engine go into their sweet spot for power? Yes it will.

That is why the diesel is the premium engine. It will let you pull the same load as the gasser but it will do it without revving out so high, get better fuel economy doing it, and with the latest generation of diesels probably quieter too.