Numbers Are Out!
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From: Home Base Nebraska
Denny
Tuned
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Cargo Master
Joined: Apr 2019
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as of right now it looks like the 6.6 Duramax is the only engine available in 4500-6500 trucks. that engine is derated to 350hp and 700 ft lbs of torque
Elder User
Joined: Mar 2018
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Been rumors gm working on something larger than the 6.6 for exactly that need. 8L+. Big, simple, no DI. But just rumor at this point.
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Cargo Master
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From: Seattle area
It would make sense. The crazy hp/tq wars in the diesel arena has left a gap and opportunity.
Junior User
Joined: Sep 2017
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Plot of 6.2L (2011-2016) and new 7.3L engine specs
I put the 6.2 and the 7.3 engine specs on the same plot for comparison. Everyone is talking about how the new 7.3 has a nice flat torque curve from 1500 rpm on up but the 6.2 torque curve is actually pretty flat by comparison.
Some notes:
- I used the 2011 to 2016 version of the 6.2 because that is what I own.
- I started the plot at 1500 rpm because that is where the published 7.3 plot begins.
- The 7.3 displacement is about 18% greater than the 6.2 and the torque and HP increase roughly matches this ratio.
Elder User
Joined: Mar 2007
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I laugh at the people that are not impressed with the numbers on this engine. It's already better numbers wise than any other HD gas engine. Why would Ford put this engine out and not be more than just a little better than the competition? They have to leave room for improved power numbers in the future just like the diesel engines have done. I would like to see what the numbers are in 3 years compared to now.
Junior User
Joined: Sep 2017
Posts: 73
Likes: 1
I laugh at the people that are not impressed with the numbers on this engine. It's already better numbers wise than any other HD gas engine. Why would Ford put this engine out and not be more than just a little better than the competition? They have to leave room for improved power numbers in the future just like the diesel engines have done. I would like to see what the numbers are in 3 years compared to now.
The 6.2 torque was increased by about 5% in 2017 - if the same is done for the 7.3 it will reach the magical 500 ft-lbs number that many expected to see.
The 7.3 paired with the 10 speed transmission should be a great combination and provide the right gear for any load or grade.
Thread Starter
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Logistics Pro
Joined: Apr 2017
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From: Lost in the Ozone....
Plot of 6.2L (2011-2016) and new 7.3L engine specs
I put the 6.2 and the 7.3 engine specs on the same plot for comparison. Everyone is talking about how the new 7.3 has a nice flat torque curve from 1500 rpm on up but the 6.2 torque curve is actually pretty flat by comparison. .