Ford 6.7L 1050 ft lbs TQ at 1,600 rpm, 475 HP at 2,800 rpm

Cummins12V98 wrote:
So 8 minutes is the perfect time. Sorry GM guys your new multi speed truck performs no better than the heavier truck.

Nope not loosing any sleep.

RAM is next to release their 2020. I’m thinking they may bump the TQ again.

It clearly bothers you for some reason. You have brought it up several times.

The new crop of trucks have adequate power to maintain the speed limit. Now they will add ways to differentiate themselves. Things like comfort either real or perceived by having the different gear selections, noise, smoothness and other tangible and intangible traits. You are getting too wrapped up in a test that will add less and less meaningfulness as more and more vehicles achieve perfect scores.

ShinerBock wrote:

RCMAN46 wrote:
" the Duramax should have mopped the floor with the Cummins on the last supper Ike test instead of being less than a 15 second difference."

The major reason for the close times both trucks were able to run most of the hill at the speed limit set by the test. So depending on the accuracy of the speedometers used and how close to the speed limit the driver held the trucks to could easily result in a 15 second difference in an 8 mile run.

We need to load the units such they are not able to obtain the speed limit imposed to find which can make the most power up the hill. If this can not be done find a steeper or longer hill for the tests.

Not in the videos I saw in the 2017 tow test where they did all three at once.

The times were 10:28(with a red light at the end) for the 385hp rated Cummins and 10:17 for the 445hp rated Duramax. If they were able to do 60 mph most of the way up, then their time would have been closer to 8:00 since that is 60 mph in 8 miles. At 10:28 over 8 miles, the average speed would be 45.86 mph for the Cummins and at 10:17 the average speed is 46.68 mph for the Duramax. That is less than 1 mph difference yet the Duramax had 60 more peak horsepower.

The 2017 test was limited to 22,800lbs to keep things even and that is all that the Chevy was rated for. Now that all are rated for 35,000+lbs we may see more difference in the tow speeds.

2017 Ike Gauntlet

The load discussion starts at a minute thirteen seconds.

Cummins12V98 wrote:
So 8 minutes is the perfect time. Sorry GM guys your new multi speed truck performs no better than the heavier truck.

Nope not loosing any sleep.

RAM is next to release their 2020. I’m thinking they may bump the TQ again.

Why do you insist that if there isn’t a significant drop in time in the race up Ike (something you and virtually everyone else on here rarely if ever run) the transmission isn’t an improvement? (Other than the fact that whatever you have is the absolute BEST).

Cummins12V98 wrote:
So 8 minutes is the perfect time. Sorry GM guys your new multi speed truck performs no better than the heavier truck.

Nope not loosing any sleep.

RAM is next to release their 2020. I’m thinking they may bump the TQ again.

Ram did release their 2020 trucks by showcasing 3 new packages.

Link

If they do will that be enough to entice you into buying a new buck? Or do you wait to see if the Aisin can take it.

So 8 minutes is the perfect time. Sorry GM guys your new multi speed truck performs no better than the heavier truck.

Nope not loosing any sleep.

RAM is next to release their 2020. I’m thinking they may bump the TQ again.

ShinerBock wrote:

RCMAN46 wrote:
" the Duramax should have mopped the floor with the Cummins on the last supper Ike test instead of being less than a 15 second difference."

The major reason for the close times both trucks were able to run most of the hill at the speed limit set by the test. So depending on the accuracy of the speedometers used and how close to the speed limit the driver held the trucks to could easily result in a 15 second difference in an 8 mile run.

We need to load the units such they are not able to obtain the speed limit imposed to find which can make the most power up the hill. If this can not be done find a steeper or longer hill for the tests.

Not in the videos I saw in the 2017 tow test where they did all three at once.

The times were 10:28(with a red light at the end) for the 385hp rated Cummins and 10:17 for the 445hp rated Duramax. If they were able to do 60 mph most of the way up, then their time would have been closer to 8:00 since that is 60 mph in 8 miles. At 10:28 over 8 miles, the average speed would be 45.86 mph for the Cummins and at 10:17 the average speed is 46.68 mph for the Duramax. That is less than 1 mph difference yet the Duramax had 60 more peak horsepower.

The Duramax definitely should have beat the Ram by a significant margin but it only has a 60 HP advantage at 2800 rpm. Likely the trucks were running much of the hill at an rpm significantly lower than 2800. Was it the 930 lb ft Cummins that was up against the Duramax or the 900 lb ft engine? Either way the fact that the torque iof the two engines is not much different could partially explain why the time was as close as it was.

ShinerBock wrote:

RCMAN46 wrote:
" the Duramax should have mopped the floor with the Cummins on the last supper Ike test instead of being less than a 15 second difference."

The major reason for the close times both trucks were able to run most of the hill at the speed limit set by the test. So depending on the accuracy of the speedometers used and how close to the speed limit the driver held the trucks to could easily result in a 15 second difference in an 8 mile run.

We need to load the units such they are not able to obtain the speed limit imposed to find which can make the most power up the hill. If this can not be done find a steeper or longer hill for the tests.

Not in the videos I saw in the 2017 tow test where they did all three at once.

The times were 10:28(with a red light at the end) for the 385hp rated Cummins and 10:17 for the 445hp rated Duramax. If they were able to do 60 mph most of the way up, then their time would have been closer to 8:00 since that is 60 mph in 8 miles. At 10:28 over 8 miles, the average speed would be 45.86 mph for the Cummins and at 10:17 the average speed is 46.68 mph for the Duramax. That is less than 1 mph difference yet the Duramax had 60 more peak horsepower.

The Duramax definitely should have beat the Ram by a significant margin but it only has a 60 HP advantage at 2800 rpm. Likely the trucks were running much of the hill at an rpm significantly lower than 2800. Was it the 930 lb ft Cummins that was up against the Duramax or the 900 lb ft engine? Either way the fact that the torque iof the two engines is not much different could partially explain why the time was as close as it was.

ShinerBock is likely right on the money regarding these trucks not being able to make peak HP for a sustained pull up the Ike due to high exhaust gas temperatures. At 10,000 feet the turbos may be limiting the amount of air and the after coolers are going to be less effective both of which will lead to hotter exhaust. None of the trucks.... including the Frieghtliner pulled the way they should have had they been making their claimed power. If the engines are holding back fuel on account of hot exhaust the outside air temperature at the time of the test could impact the way one truck measures up against another if the trucks are not run up the hill at the same time. Even if the 2020 Powerstroke can sustain 475 HP for a long pull at some elevation there will certainly be an elevation where its power is going to start dropping off.

Cummins12V98 wrote:
What is the net time it takes to complete the course at the posted speed limit???

What was the GM's time and what was the RAM's time?

Then let's talk why GM didn't mop the floor.

You are the expert so what were the times, speed limit used and distance covered?