2020 7.3l f350

catalac · Aug 8, 2020

Currently own a 2017 Cummins 370hp/800tq and a 2020 f350 475 / 1050 10 speed. I really like the Cummins for but the new ford kills it for acceleration and towing, would like to try one of the ho Cummins 400 / 1000, I would imagine it’s a nice motor.

rightsideup · Aug 9, 2020

pfi572 said:
Wonder why the trans problems.
I have a 10 speed in my 2019 1/2 ton and it’s awesome so far .
31000 kms and not a problem.
Hmmmm

I had a 2017 ecoboost 3.5 ten speed with 64000kms no issues first year of the ten speed. Now have a 5 liter 10 speed with 2500km 2020 model year

mur190 · Aug 9, 2020

Agreed, I had a 2011 HO cummins with a lot of work done (tuning, turbo, nozzels ect…) and I think my 2019 6.7 Powerstroke would beat it tow or strip with a delete 50HP tune.

catalac said:
Currently own a 2017 Cummins 370hp/800tq and a 2020 f350 475 / 1050 10 speed. I really like the Cummins for but the new ford kills it for acceleration and towing, would like to try one of the ho Cummins 400 / 1000, I would imagine it’s a nice motor.

Caper11 · Aug 9, 2020

ABMax24 said:
Torque is nice, and really helps to keep rpm's down when lugging down the highway, and prevents downshifting when rolling up hills.

But when you put your foot to the floor and need the absolute max the truck can deliver hp is all that matters.

I really hate Dodge marketing in this regard, torque does not make you the fastest guy up the hill, hp does, and it most certainly doesn't make the Cummins the most powerful diesel pickup as their marketing claims, it is in fact the least powerful. Torque and HP are directly related by rpm, Torque is meaningless with rotational speed to provide power, you have to carry that torque up the rpm range to make power.

Torque is everything, its what gets you moving and gets you up hills, torque is what gets a mathematical HP number on a dyno. The I6 engine does not make a significant increase in torque at the “high torque” range at max rpm like a v8 does, so therefore no significant increase in max HP like V-8’s.
As I mentioned earlier, how long does a engine actually rev at its peak HP when climbing a hill, whats the hp curve look like?
Ecm mapping and changing those curves can get higher peak HP in these electronic engines.

This story is not new, it happened decades ago when the high HP v-8 diesels got replaced by the Lower HP I-6, in highway trucks, but the torque remained relatively the same.

As I mentioned, in 2019 the cummins got a redesign, new turbo etc. With a new transmission it could be a interesting to see how it will compare to the new ford.

pfi572 · Aug 9, 2020

The new trans with more ratios , gears is making a huge difference .
Don’t see big rigs running 4 to 6 speed trans . Lol
Pulling power from 1400 to 1900 rpm ish you need lots of ratios like 18 speed .

catalac · Aug 9, 2020

from Cumminshub:
I6 6.7, 400 hp and 2800, 1000 lbs at 1800

from Powerstrokehub:
v8 6.7, 475 hp at 2800, 1050 lbs at 1800.

On heavy load I don’t seem to see either my ram or ford get near 2800 so maybe the 400 and 475 number is more marketing than function. Hate the torque limiting in both transmissions the ford a bit worse than the dodge will get hung in a gear and not shift like its saving it's self. The ten speed nice but imo 8 would be lots as it skips gears quite often, Ram with 8 speed would be nice.

ABMax24 · Aug 9, 2020

Caper11 said:
Torque is everything, its what gets you moving and gets you up hills, torque is what gets a mathematical HP number on a dyno. The I6 engine does not make a significant increase in torque at the “high torque” range at max rpm like a v8 does, so therefore no significant increase in max HP like V-8’s.
As I mentioned earlier, how long does a engine actually rev at its peak HP when climbing a hill, whats the hp curve look like?
Ecm mapping and changing those curves can get higher peak HP in these electronic engines.

This story is not new, it happened decades ago when the high HP v-8 diesels got replaced by the Lower HP I-6, in highway trucks, but the torque remained relatively the same.

As I mentioned, in 2019 the cummins got a redesign, new turbo etc. With a new transmission it could be a interesting to see how it will compare to the new ford.

Unfortunately we are going to have to agree to disagree. Power is what does work, period. A motor with lots of torque at low rpm also creates lots of power at low rpm. It is then the purpose of the drive train to take this power and create tractive force at the tires. Assuming inefficiencies in the drive train are the same more power equals more tractive force, always.

Power is the fundamental measurement of energy output for any mechanical device. There is no other way to measure how much work an engine can do.

Comparing high revving pickup diesels to semis proves nothing. Semi's need to create more torque as a function of the lower rpm to make the same power. Halving the rpm requires a doubling of torque to make the same power.

[h=5]HP = Torque x RPM ÷ 5252[/h]

Caper11 · Aug 9, 2020

https://youtu.be/-GKgKwTfOio

Your right, HP is a calculation.

If your looking for a comparison vid and If you have time watch this. The trucks engines do not stay in peak HP when pulling.
Why is the chev the slowest of all three?, but it has more HP over the ram, and a 10 speed.
I was surprised to hear the fan come on so many times on the ford, at ambiant temps below zero.
I bet the ford would of been alot faster than the ram, instead of being just over a min behind the ford.
The Ford is a beast, thats for sure.

Torque is the capacity to do work, power is how fast work is done.

Regardless they are all capable trucks.

Bury Me With My Toys · Oct 25, 2020

Caper11 said:
Torque is everything, its what gets you moving and gets you up hills, torque is what gets a mathematical HP number on a dyno. The I6 engine does not make a significant increase in torque at the “high torque” range at max rpm like a v8 does, so therefore no significant increase in max HP like V-8’s.
As I mentioned earlier, how long does a engine actually rev at its peak HP when climbing a hill, whats the hp curve look like?
Ecm mapping and changing those curves can get higher peak HP in these electronic engines.

This story is not new, it happened decades ago when the high HP v-8 diesels got replaced by the Lower HP I-6, in highway trucks, but the torque remained relatively the same.

As I mentioned, in 2019 the cummins got a redesign, new turbo etc. With a new transmission it could be a interesting to see how it will compare to the new ford.

Torque in simple terms is the amount of work being done.
Horsepower is how fast that work gets done.

If you had 5,000 foot pounds of torque, and 1 horsepower, it would be useless, as it would take a day to get up to 100 kms/hr. So you cannot say that its only torque that matters.

AreWeThereYet · Oct 25, 2020

The thread is on the 7.3L gas engine,.. not a diesel.

ABMax24 · Oct 25, 2020

Bury Me With My Toys said:
Torque in simple terms is the amount of work being done.
Horsepower is how fast that work gets done.

That's not right either. Torque is not a measurement of work, it is a measure of force.

Power is the amount of work that gets done, in the case of engines it's usually measured in horsepower. To get more work done in the same amount of time you need more power.

Unfortunately the power sports world is full of incorrect anecdotes that try to relate torque and hp to other things.

Caper11 · Oct 25, 2020

Bury Me With My Toys said:
Torque in simple terms is the amount of work being done.
Horsepower is how fast that work gets done.

If you had 5,000 foot pounds of torque, and 1 horsepower, it would be useless, as it would take a day to get up to 100 kms/hr. So you cannot say that its only torque that matters.

Yes Torque is the force or work done to get a object to move.
Mathematically that’s impossible your numbers are impossible, HP is a calculation of torque produced.
Whats important is the peak HP of one engine to another is. Whats the HP and torque produced at cruising RPM.

If 50HP really mattered why does cummins offer 565 Hp and 2050 torque and 605 hp and 2050tq on the X15??? Max Hp is not as important as everyone wants to believe.

Pedaling pete · Oct 25, 2020

5000ft/lbs x 1.0504rpm ÷ 5252= 1hp

She wouldn't be a rev'er that's forsure lol

2020 7.3l f350

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