Another Duramax, Powerstroke & Cummins Tow Test
#16
I do have to agree on the steering, that is probably the thing I dislike the most about my truck. they should have really speed up the steering box that would have made the truck feel a ton more agile, instead the slow steering ratio makes it just feel like a huge truck.
#17
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Troy
Have you read some of the posts in other forums about the horsepower being king in this comparison? The Ford clearly has more torque. This is totally ignored. My question was serious and not intended to provoke another debate. In the real world, what matters more? Torque or horsepower.
Have you read some of the posts in other forums about the horsepower being king in this comparison? The Ford clearly has more torque. This is totally ignored. My question was serious and not intended to provoke another debate. In the real world, what matters more? Torque or horsepower.
Yes the Duramax platform has had a few issues in the past and present, but when compared to Fords history (ie. three engine platforms since the Duramax launch, lawsuits like crazy, divorcing it's engine supplier with numerous lawsuits again etc... etc...) Who really has the better track record... That's another story!
#18
That is my concern with Ford, however, I am ponying up. The d-max has something about it that I love, however the rest of the truck is less desireing. Hard for me to the switch. I have a great relationship with My local GMC dealer and they have always treated me right. Not to mention that my current D-max has been perfect. Time will tell.
#19
Torque is more important for getting the load moving, HP is more important for "at speed" acceleration.
These compare-Ohs are really just fodder for forums and for the uneducated buyer. They have no value in the real world as all the results are so close and the next 2 specimen trucks they test may test differently. You'd be wise to ignore these unscientific tests and simply buy the truck that appeals to you the most. You really can't buy a bad one today.
These compare-Ohs are really just fodder for forums and for the uneducated buyer. They have no value in the real world as all the results are so close and the next 2 specimen trucks they test may test differently. You'd be wise to ignore these unscientific tests and simply buy the truck that appeals to you the most. You really can't buy a bad one today.
Last edited by Tom; 02-07-2011 at 12:11 PM. Reason: fixed quote!
#20
What matters more in the truck world is Torque without a doubt. But let's be clear here and that the engine's torque got to make to to the rear wheels. Although the Ford has more (Advertised)torque at the crank it appears the Duramax/Allison combo is more efficient at putting the engine's torque to the rear wheels which explains the better towing performance. What I question here is did Chevy understate is engine torque or did Ford overstate it's engine torque and someone is lying. Either way the proof is in the pudding and like I told you months ago, the Duramax is not maxed out and don't underestimate it's potential.
Yes the Duramax platform has had a few issues in the past and present, but when compared to Fords history (ie. three engine platforms since the Duramax launch, lawsuits like crazy, divorcing it's engine supplier with numerous lawsuits again etc... etc...) Who really has the better track record... That's another story!
Yes the Duramax platform has had a few issues in the past and present, but when compared to Fords history (ie. three engine platforms since the Duramax launch, lawsuits like crazy, divorcing it's engine supplier with numerous lawsuits again etc... etc...) Who really has the better track record... That's another story!
Your assertion that there is a transmission power transfer problem with the Ford does not measure up on this comparisons dyno runs. Forget the horsepower losses, all three trucks lost 14% of the published torque through the transmissions. I suspect some sandbagging has taken place with the GM. Ford needs to hurry up and get that 430/900 flash out here.
Regards
#21
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I agree... Ford needs to be atleast prepared since I suspect once Dodge gets their auto tranny beefed up, guess what numbers the cummins will be at; but it can't come with a reduction in fuel economy.
Also I suspect the future price of diesel will spoil all this fun so Ford better be prepared for this aspect also since the day to pay the piper is coming at the diesel pump.
Also I suspect the future price of diesel will spoil all this fun so Ford better be prepared for this aspect also since the day to pay the piper is coming at the diesel pump.
#22
Usually in these tests they never mention the details such as tire size, gear ratio and weight.
Ford 3:55 gears, tires 275-65-20 which is 34.07 inches tall, and weighs 7900 lbs
Chevy 3:73 gears. tires 265-70-18 which is 32.6 inches tall, and weighs 7500 lbs
Dodge 4:10 gears, tires 265-70-17 which is 31.6 inches tall, and weighs 7640 lbs
It is easy to see that Ford is at a disadvantage right away, it's heavier, has bigger tires and a very high gear ratio but yet isn't really that much slower. Imagine if the Ford had 4:10 gears---look out.
Ford 3:55 gears, tires 275-65-20 which is 34.07 inches tall, and weighs 7900 lbs
Chevy 3:73 gears. tires 265-70-18 which is 32.6 inches tall, and weighs 7500 lbs
Dodge 4:10 gears, tires 265-70-17 which is 31.6 inches tall, and weighs 7640 lbs
It is easy to see that Ford is at a disadvantage right away, it's heavier, has bigger tires and a very high gear ratio but yet isn't really that much slower. Imagine if the Ford had 4:10 gears---look out.
#23
there is a reason, albeit not a good one. Both Ford and GM have much higher profit margins in their trucks than the Dodge. Your multi-line dealer would sooner sell you something other then the Dodge to put the most money in their profit. I've had numerous dealers tell me this, each brand of dealer through my purchase research... Both Ford dealer and GM dealer admitted to having much higher profit margins than the Dodge, but were unable to match price with Dodge on equivalently equiped trucks.
#25
I do have to agree on the steering, that is probably the thing I dislike the most about my truck. they should have really speed up the steering box that would have made the truck feel a ton more agile, instead the slow steering ratio makes it just feel like a huge truck.
#26
#29
A good test to show torque is the same track, with more and more weight applied each run of the track. You take a run, add 500 lbs, do another, add 500, do another, add 500, until you get to either one of the trucks rated capacity (if indeed one was lower than another), a predetermined capacity, or max rated capacity (given all trucks have an equal rated towing capacity).
This tpye of race kind of plays out like pulling sleds.
You can run 2 sets of times:
-One with each truck at a given speed
-One with each truck at its rated max torque.
So now you have one variable which is weight, and then a performance graph of each truck and its times at a given speed and at max rated torque.
You then take the average times of each truck over the multiple track runs and see which one kept closer times.
If one started slowing down more and more compared to other (times were wider apart), it was not capable of either keeping speed or towing the weight.
If one did the track at 55 empty and did it in the same time at rated capacity, then obviously the torque is greater than the others.
This tpye of race kind of plays out like pulling sleds.
You can run 2 sets of times:
-One with each truck at a given speed
-One with each truck at its rated max torque.
So now you have one variable which is weight, and then a performance graph of each truck and its times at a given speed and at max rated torque.
You then take the average times of each truck over the multiple track runs and see which one kept closer times.
If one started slowing down more and more compared to other (times were wider apart), it was not capable of either keeping speed or towing the weight.
If one did the track at 55 empty and did it in the same time at rated capacity, then obviously the torque is greater than the others.
#30