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 > F350 Super Duty vs 3500 Denali vs The Ike Pulling 30k lbs

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2001400ex

Veradale, WA

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Posted: 01/25/20 03:42pm Link  |  Quote  |  Print  |  Notify Moderator

I wish they would have posted more information like they did in the past. Like the DB reading going up the hill. There was very little video of either run up the hill. They should discuss how many times the fan clutches engage. The temps up the hill. All relevant information.

That being said, the Ford did a great job pulling.

I also want to see a more relevant test, 15k RV up the hill and see how each performs.


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Cummins12V98

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Posted: 01/25/20 04:09pm Link  |  Quote  |  Print  |  Notify Moderator

4x4ord wrote:

Cummins12V98 wrote:

Will be nice to see how the measly 400/1000 with 4.10's RAM does with it's ancient outdated 6 speed AISIN.

Very easy to have ZERO brake applications if one chooses running cruise control.


The new Ram has already run up against the Duramax 10 speed towing 16000 lbs. The Ram and GM had identical times of 8:24.


click
m

Not towing 30k.


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4x4ord

Alberta

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Posted: 01/25/20 04:20pm Link  |  Quote  |  Print  |  Notify Moderator

2001400ex wrote:

I wish they would have posted more information like they did in the past. Like the DB reading going up the hill. There was very little video of either run up the hill. They should discuss how many times the fan clutches engage. The temps up the hill. All relevant information.

That being said, the Ford did a great job pulling.

I also want to see a more relevant test, 15k RV up the hill and see how each performs.


You might find these videos of some interest:


F450 with 30k lbs


F350 SRW towing a 13k Grand Design


2017 F350 SRW Platinum short box 4x4.
B&W Companion
2008 Citation Platinum XL 34.5

4x4ord

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Posted: 01/25/20 04:37pm Link  |  Quote  |  Print  |  Notify Moderator

Cummins12V98 wrote:

4x4ord wrote:

Cummins12V98 wrote:

Will be nice to see how the measly 400/1000 with 4.10's RAM does with it's ancient outdated 6 speed AISIN.

Very easy to have ZERO brake applications if one chooses running cruise control.


The new Ram has already run up against the Duramax 10 speed towing 16000 lbs. The Ram and GM had identical times of 8:24.


click
m

Not towing 30k.


Right. So it will be interesting to see how it handles 30k ... should be similar to the Duramax maybe a little slower.

theoldwizard1

SE MI

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Posted: 01/25/20 05:14pm Link  |  Quote  |  Print  |  Notify Moderator

Have they run a F-series Super Duty with 7.3L gas towing up Ike yet ?

Huntindog

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Posted: 01/25/20 05:45pm Link  |  Quote  |  Print  |  Notify Moderator

In those conditions, it would be difficult to do a comparison, unless they were run side by side..

Another thing stuck out for me.

They said that their new standard was a perfect run is now 10 minutes... IIRC, it used to be 8 minutes. Either the climb has gotten longer, or the speed limit for the test has decreased.

Or was this a one time reduction due to the weather conditions?

They don't say.

As for the concerns about the temps.... Not an issue in these conditions. Run them up in the summer and it will likely be a different story

I would like to see the tranny ratios for each 10 speed tranny as well.



Huntindog
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4x4ord

Alberta

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Posted: 01/25/20 05:51pm Link  |  Quote  |  Print  |  Notify Moderator

Cummins12V98 wrote:

4x4ord wrote:

Cummins12V98 wrote:

Will be nice to see how the measly 400/1000 with 4.10's RAM does with it's ancient outdated 6 speed AISIN.

Very easy to have ZERO brake applications if one chooses running cruise control.


The new Ram has already run up against the Duramax 10 speed towing 16000 lbs. The Ram and GM had identical times of 8:24.


click
m

Not towing 30k.


The interesting thing about the Cummins vs Duramax is that the Duramax makes 445 Hp @ 2800 rpm vs the 400 hp of the Cummins. But as the Duramax pulls down it dramatically looses power. In fact if it were allowed to pull down all the way to 1600 rpm where it makes peak torque it would loose 167 hp. The Cummins on the other hand looses very little hp as the engine slows down. In fact the Cummins only looses 57 hp slowing from 2800 rpm down to 1800 rpm where it makes its peak torque. For this reason the Cummins doesn't need a 10 speed to compete with the Duramax. The Cummins will be putting out more power than the Duramax at rpms below 2250. Above 2250 the higher power of the Duramax starts to come into play.
The Ram's ability to produce power at a lower rpm might allow it to get a little better fuel economy under certain conditions.

4x4ord

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Posted: 01/25/20 06:07pm Link  |  Quote  |  Print  |  Notify Moderator

Huntindog wrote:

In those conditions, it would be difficult to do a comparison, unless they were run side by side..

Another thing stuck out for me.

They said that their new standard was a perfect run is now 10 minutes... IIRC, it used to be 8 minutes. Either the climb has gotten longer, or the speed limit for the test has decreased.

Or was this a one time reduction due to the weather conditions?

They don't say.

As for the concerns about the temps.... Not an issue in these conditions. Run them up in the summer and it will likely be a different story

I would like to see the tranny ratios for each 10 speed tranny as well.


I think it makes sense to increase perfect score to 10 minutes when towing the loads that the dualies are now capable of towing.

link to a thread giving the Ford gear ratios.

With 10 speeds to choose from exact ratios aren't going to make much difference.

rjstractor

Maple Valley, WA

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Posted: 01/25/20 07:36pm Link  |  Quote  |  Print  |  Notify Moderator

4x4ord wrote:

I think it makes sense to increase perfect score to 10 minutes when towing the loads that the dualies are now capable of towing.


It also falls in line with SAE towing standards that have slower speed requirements for DRW pickups.

Cummins12V98

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Posted: 01/25/20 08:00pm Link  |  Quote  |  Print  |  Notify Moderator

4X, you understand all the technical stuff and how to apply it. I have always respected you for this ability. I have consistently felt my truck wouldn’t make a difference with a 10 speed just from seeing how my truck performs. That is why I am curious how the 20 RAM we’ll compare to the others.

On the test you mention I felt the GM should have destroyed the RAM with all the 10 speed hype but it didn’t.

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