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 > Why do you Cummins guys want more gears

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4x4ord

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Posted: 04/05/21 03:48pm Link  |  Quote  |  Print  |  Notify Moderator

^^^Peak torque to the rear wheels at full throttle would mean the CVT would adjust to keep the engine at 2800 rpm where it makes peak hp and it still wouldn’t keep up to the Powerstroke.


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Me Again

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Posted: 04/05/21 04:19pm Link  |  Quote  |  Print  |  Notify Moderator

4x4ord wrote:

^^^Peak torque to the rear wheels at full throttle would mean the CVT would adjust to keep the engine at 2800 rpm where it makes peak hp and it still wouldn’t keep up to the Powerstroke.


I-6 vs V-8 is a race is no contest, the V-8 will win most of the time due to a shorter stroke and less rotating mass. When we bought our RAMs(three of them) it was to tow trailers not race.


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4x4ord

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Posted: 04/05/21 04:29pm Link  |  Quote  |  Print  |  Notify Moderator

Me Again wrote:

4x4ord wrote:

^^^Peak torque to the rear wheels at full throttle would mean the CVT would adjust to keep the engine at 2800 rpm where it makes peak hp and it still wouldn’t keep up to the Powerstroke.


I-6 vs V-8 is a race is no contest, the V-8 will win most of the time due to a shorter stroke and less rotating mass. When we bought our RAMs(three of them) it was to tow trailers not race.



There has never been a diesel in a pick up with a power curve shaped to pull like the 2021 Cummins.

Me Again

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Posted: 04/05/21 04:45pm Link  |  Quote  |  Print  |  Notify Moderator

How does the saying go. Kid one says my mother is better looking than yours. Kid two says, right my dad thinks so also.

mich800

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Posted: 04/05/21 04:49pm Link  |  Quote  |  Print  |  Notify Moderator

Me Again wrote:

4x4ord wrote:

^^^Peak torque to the rear wheels at full throttle would mean the CVT would adjust to keep the engine at 2800 rpm where it makes peak hp and it still wouldn’t keep up to the Powerstroke.


I-6 vs V-8 is a race is no contest, the V-8 will win most of the time due to a shorter stroke and less rotating mass. When we bought our RAMs(three of them) it was to tow trailers not race.


The v8 has more horsepower which is why it will win a timed race. Many just prefer the drivability and feel of the torque curve the I6 delivers.

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Posted: 04/05/21 05:17pm Link  |  Quote  |  Print  |  Notify Moderator

+120hp.


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Posted: 04/05/21 05:40pm Link  |  Quote  |  Print  |  Notify Moderator

Me Again wrote:

4x4ord wrote:

^^^Peak torque to the rear wheels at full throttle would mean the CVT would adjust to keep the engine at 2800 rpm where it makes peak hp and it still wouldn’t keep up to the Powerstroke.


I-6 vs V-8 is a race is no contest, the V-8 will win most of the time due to a shorter stroke and less rotating mass. When we bought our RAMs(three of them) it was to tow trailers not race.


Typically a truck that can accelerate faster while towing can also tow easier with less drama. Acceleration is just one metric to measure towing performance.


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4x4ord

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Posted: 04/05/21 06:49pm Link  |  Quote  |  Print  |  Notify Moderator

FishOnOne wrote:

Me Again wrote:

4x4ord wrote:

^^^Peak torque to the rear wheels at full throttle would mean the CVT would adjust to keep the engine at 2800 rpm where it makes peak hp and it still wouldn’t keep up to the Powerstroke.


I-6 vs V-8 is a race is no contest, the V-8 will win most of the time due to a shorter stroke and less rotating mass. When we bought our RAMs(three of them) it was to tow trailers not race.


Typically a truck that can accelerate faster while towing can also tow easier with less drama. Acceleration is just one metric to measure towing performance.


It kind of depends what you mean by 'drama". The 2021 Powerstroke/10 speed is definitely going to get to the top of the hill 1st vs the 2021 Cummins, but to do so, it might drop 4 gears, then pick up a gear and drop it one more time. The Cummins, on the other hand, might drop its two overdrive gears and settle in and pull .... slowly accelerating just a bit where the hill levels out and digging back in when it needs to.

Dadoffourgirls

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Posted: 04/05/21 06:52pm Link  |  Quote  |  Print  |  Notify Moderator

Huntindog wrote:

Shinerbock wrote:

But you have to admit, this hatred for anything Allison is a bit irrational.

I think it is because the Allison was the first auto tranny worth having in the 3/4-1 ton class. I remember when it was common for auto trannys to need rebuliding at 70-90K. I bought a 96 Dodge 1 ton back then. Got the manual so it would last.

GM bringing the Allison on board forced the others to step up their game. But (perhaps because it was first) the Allison for quite awhile was considered by many to be the gold standard.
Naturally this did not set well with OB fans.
...
[emoticon]


GM owned Allison until 2007. The original Allison was Allison. When GM sold Allison to The Carlyle Group and Onex Corporation for $5.6B, the deal allowed GM to continue using the name and the design.


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Cummins12V98

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Posted: 04/05/21 08:30pm Link  |  Quote  |  Print  |  Notify Moderator

Dadoffourgirls wrote:

Huntindog wrote:

Shinerbock wrote:

But you have to admit, this hatred for anything Allison is a bit irrational.

I think it is because the Allison was the first auto tranny worth having in the 3/4-1 ton class. I remember when it was common for auto trannys to need rebuliding at 70-90K. I bought a 96 Dodge 1 ton back then. Got the manual so it would last.

GM bringing the Allison on board forced the others to step up their game. But (perhaps because it was first) the Allison for quite awhile was considered by many to be the gold standard.
Naturally this did not set well with OB fans.
...
[emoticon]


GM owned Allison until 2007. The original Allison was Allison. When GM sold Allison to The Carlyle Group and Onex Corporation for $5.6B, the deal allowed GM to continue using the name and the design.


This is a new design and I am betting Allison gets a cut for using their name on something they have nothing to do with.


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