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Old Aug 18, 2010 | 12:45 PM
  #7306  
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From: WV
Originally Posted by phillips91
Honestly, I am not too impressed with the 6.2 off the line even with the 6 speed and 4.30 gears. Comparing it to my 2v 5.4 with both in 1st gear and turning 4,500 rpm the tractive force is 6,929 for the 6.2 and 7,112 for my 5.4. The 6.7 has seen a massive increase in low end power AND gets the 6 speed tranny while the 6.2 at its best is worse off the line than a 2v 5.4 with a manual.....
Off the line, probably so. But to be honest I've never been worried about off the line. There has been quite a bit of talk on here about off the line and getting a load started, and to be honest I think the truck would brake down long before either of these engine couldn't move a load. The extra gears are probably set up for better mpg, not better towing.
 
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Old Aug 18, 2010 | 12:51 PM
  #7307  
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Originally Posted by Kajtek1
Talking about low end toque. When my Superduty with 7.3 PS blow the differential, I rented 2004 Superduty with 6.0 PS.
The newer engine with very low torque and poorly design automatic almost made me costing couple of accidents when it took 20 seconds for the set to move across intersection.

I've never been impressed with Ford's auto trannies in there trucks. I've never owned a GM heavy duty, but their half tons seem to be a little more snappy in the tranny than Ford's. Dodge has some of the best tranny's for acceleration IMO though, to bad they only last 80k miles if they never tow anything.
 
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Old Aug 18, 2010 | 12:56 PM
  #7308  
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Originally Posted by Kajtek1
Than we are diverting the topic to other engines again.
I know, and I apologize for that, was just using it as an example of how turbo diesels' acceleration doesn't drop off as much as you'd think, and why.
 
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Old Aug 18, 2010 | 12:57 PM
  #7309  
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Originally Posted by Jrfish007
Off the line, probably so. But to be honest I've never been worried about off the line. There has been quite a bit of talk on here about off the line and getting a load started, and to be honest I think the truck would brake down long before either of these engine couldn't move a load. The extra gears are probably set up for better mpg, not better towing.
The off the line part is pretty important to me though. Our city planners around here aren't the brightest and they love to put red lights, stop signs and intersections right in the middle of 15-20% slopes. We have one road that they have to close any time it rains because you can't go up it in 2 wheel drive because it is so steep and pulling out from a dead stop.
 
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Old Aug 18, 2010 | 01:10 PM
  #7310  
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Originally Posted by phillips91
The off the line part is pretty important to me though. Our city planners around here aren't the brightest and they love to put red lights, stop signs and intersections right in the middle of 15-20% slopes. We have one road that they have to close any time it rains because you can't go up it in 2 wheel drive because it is so steep and pulling out from a dead stop.

At least they close it. Around here they just leave it open and let "the traffic take care of itself."

But in that case you simply have to much tractile force, so better opt for the V6 on a rainy day.
 
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Old Aug 18, 2010 | 01:23 PM
  #7311  
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From: Rogersville, TN
Originally Posted by Jrfish007
At least they close it. Around here they just leave it open and let "the traffic take care of itself."

But in that case you simply have to much tractile force, so better opt for the V6 on a rainy day.
I have driven around the road closed signs a few times just to try it out and I couldn't even get up it with a 2.3 4 cylinder. It's steep, pulling out from a dead stop AND grooved concrete.
 
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Old Aug 18, 2010 | 01:24 PM
  #7312  
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Originally Posted by Jrfish007
I've never owned a GM heavy duty, but their half tons seem to be a little more snappy in the tranny than Ford's. Dodge has some of the best tranny's for acceleration IMO though, to bad they only last 80k miles if they never tow anything.
Having recently gone through the Chevy thing for a brother-in-law, those half-tons are known to be "snappy" to a fault.

The Dodges have a very low 1st gear, or so I've been told, which is why the Hemis can pull away from me at a stoplight. Until they hit 2nd gear. Then they stop pulling away whatsoever and if it's a 2500, I start gaining as soon as they hit 2nd. If I had 4.30's, it wouldn't be a contest in the first place.
 
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Old Aug 18, 2010 | 01:55 PM
  #7313  
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Originally Posted by phillips91
The off the line part is pretty important to me though. Our city planners around here aren't the brightest and they love to put red lights, stop signs and intersections right in the middle of 15-20% slopes. We have one road that they have to close any time it rains because you can't go up it in 2 wheel drive because it is so steep and pulling out from a dead stop.
I thought we had the market on incompetent city planners....
 
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Old Aug 18, 2010 | 02:01 PM
  #7314  
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Originally Posted by ChargersFanInCO
I thought we had the market on incompetent city planners....

Apparently there is no shortage...
 
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Old Aug 18, 2010 | 02:09 PM
  #7315  
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Originally Posted by Krewat
That's the turbo. It's hard to explain, but at any one point in time during acceleration, a more-heavily loaded vehicle keeps the engine from spinning up as fast, giving the turbo more time to come up and provide more boost.
The only time I see 40psi of boost is when I have a large load. The turbos (even the sequential ones like mine) don't seem to boost very much until the RPM's get up to 1500. Once I get 1500 on it, it takes off shifting like a dirtbike and staying in the powerband of 2000-3500rpms. IOW, when I do a WOT 1-2 or 2-3, or 3-4 shift at 3500-4000rpms it doesn't drop below 2000rpms when it shifts which keeps the boost up depending on the load. Empty around 15-25lbs and with a load 30-40lbs...at WOT.
 
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Old Aug 18, 2010 | 02:13 PM
  #7316  
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Originally Posted by Jrfish007
Apparently there is no shortage...
I was stuck in traffic today dreading a regen that never materialized because they shut off a major artery to install flowerboxes in the median. They didn't close one lane; they closed the whole road and detoured people through a residential area with a zillion stop signs. I idled through a 3 mile obstacle course. No warning it was coming...just the obligatory ROAD CLOSED sign when you got 1/2 a mile past the last possible exit you could take to avoid it.
 
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Old Aug 18, 2010 | 02:22 PM
  #7317  
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Originally Posted by Krewat
Having recently gone through the Chevy thing for a brother-in-law, those half-tons are known to be "snappy" to a fault.

The Dodges have a very low 1st gear, or so I've been told, which is why the Hemis can pull away from me at a stoplight. Until they hit 2nd gear. Then they stop pulling away whatsoever and if it's a 2500, I start gaining as soon as they hit 2nd. If I had 4.30's, it wouldn't be a contest in the first place.
Yeah, never said they last longer. lol

All the same I'm not a fan of Ford's Buick style shifting. It makes for a smooth ride I guess, it's a super duty truck, it's not really ment for super smooth riding. At least 5R's seem to be reliable for a truck tranny.

As for the 4.30 thing, it can also work against you. while you will be putting down more power, you will be shifting earlier. So while you are in 3rd, they might still be second and start pulling on you. But yeah, they have a pretty low 1st gear, and so do Toyota's I think. The Hemi WAS a nice engine, but is old now. I mean Ford's new 5.0 in the F150 will be about the same power rating and it's only the mid-range engine. The Hemi 2500 is like putting the 5.0 into an F250.

In a way I kind of feel bad for Dodge and their fan base, the company has been turned over so many times and none of the previous owners have been willing to really put money into the truck line up. Then I run into a Cummins RULZ moron all that sympathy goes out the door.
 
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Old Aug 18, 2010 | 02:39 PM
  #7318  
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Originally Posted by Jrfish007
In a way I kind of feel bad for Dodge and their fan base, the company has been turned over so many times and none of the previous owners have been willing to really put money into the truck line up. Then I run into a Cummins RULZ moron all that sympathy goes out the door.
Truest thing I've read in here....
 
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Old Aug 18, 2010 | 03:11 PM
  #7319  
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Originally Posted by Jrfish007

In a way I kind of feel bad for Dodge and their fan base, the company has been turned over so many times and none of the previous owners have been willing to really put money into the truck line up. Then I run into a Cummins RULZ moron all that sympathy goes out the door.
Do they have the mirrors all the way out like they do here?!!! I know one of these days, I'm gonna get one of those mirrors with my work truck one day. I have a nephew that told me that having the mirrors out is suppose to be cool. I told him that having the mirrors out when not towing is the sign of a bleepin' idiot.
 
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Old Aug 18, 2010 | 03:11 PM
  #7320  
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Originally Posted by Jrfish007
As for the 4.30 thing, it can also work against you. while you will be putting down more power, you will be shifting earlier.
Very true. By 15%. Not enough to worry about, me thinks
 
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