2011 Superduty diesel: 390hp/735tq
02-27-2010, 10:40 AM
#16
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All that huge power, with peak torque occurring at 1600 RPM. and I would tend to think that the torque curve isn't very flat.
That is where the inline still shines, torque, and lots of it, from the bottom end, right through the midrange. And for someone who works a truck, and doesn't want to drive it like they're mad at it, usable torque is what matters.
Don't get me wrong, I have both a 5.9 ISB, and a 7.3 PSD. The ISB with 3.55s and a 5 speed, 33 inch tall tires, will outpull the ford, with a 6 speed, 4.88 gears, and 33 inch tall tires. In fact, if I have any trailering to do at all, the dodge does it. The ford barely pulls itself.
Both are 01 models, dodge was 235hp stock, ford is 275 stock.
Take that as a history lesson.
.
That is where the inline still shines, torque, and lots of it, from the bottom end, right through the midrange. And for someone who works a truck, and doesn't want to drive it like they're mad at it, usable torque is what matters.
Don't get me wrong, I have both a 5.9 ISB, and a 7.3 PSD. The ISB with 3.55s and a 5 speed, 33 inch tall tires, will outpull the ford, with a 6 speed, 4.88 gears, and 33 inch tall tires. In fact, if I have any trailering to do at all, the dodge does it. The ford barely pulls itself.
Both are 01 models, dodge was 235hp stock, ford is 275 stock.
Take that as a history lesson.
.
But when the Ford got a 80hp superchips and the Dodge got a BD plug in play. The Dodge had way more power, was better on fuel and was the dominte towing truck.
Something is Marjory wrong with your 7.3 if it has 4.88 gears and keep up with a stock dodge with 3.54 gears.
I am not a big Ford fan and there isn't a doubt in my mind that a inline engine is more durable then a V-8. But I am just excited to see a all new engine with new technology, with even a higher power rating.
04-04-2010, 01:36 PM
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Good thing is Cummins dosen't need to "build" a bigger engine. Just need to drop in a 12.8 L ISX or another heavy duty engine and be done with it. 500hp and 2400 foot lbs of torque 
Ford and Chevy will just give up 
Ford and Chevy will just give up
04-07-2010, 02:54 AM
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All that power comes at a price: complexity. Two separate cooling systems, etc... The more parts you have, the more things can go wrong. But a lot of people buy new trucks every few years, so as long as it'll last 100k miles everyone is happy.
04-07-2010, 07:14 PM
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7.3 in stock form is an awesome motor. Just operates a little different than 5.9, if you try and drive it like a 5.9 it wont pull crap. it's sweet spot is 2200-2700 with stock fueling
I work with a guy regularly who has over 480k on his in an electricain's truck with a service body, just changed oil and cps
I work with a guy regularly who has over 480k on his in an electricain's truck with a service body, just changed oil and cps
04-14-2010, 12:30 AM
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Sorry to dump water on Ford's parade, but that F-series is repulsive in the front end! How much more "unsubtle" can they get? Do the chrome shopes in China really need that much more work with that grill?
Okay - that's the subjective part. Seems they are not concerned with longevity, with statements such as this one:
The 6.7-liter diesel also uses a unique approach to staying cool while working hard to help increase the numbers. It has two separate cooling systems, each with its own radiator and water pump. The primary cooling loop cools the engine while the secondary loop controls the temperatures of the exhaust gas recirculation, fuel and transmission coolers and a brand-new air-to-water charge air cooler that replaces the previous air-to-air intercooler.
Ah -how I long for the days when diesel's were rated not for "Peak" HP & Torque, but instead for "continous duty" HP & torque, where the engine was designed to run 24/7 for the entire life cycle of the engine. 215/440 dosen't sound too bad after it's been at that rating for 10,000 hours constant.
Okay - that's the subjective part. Seems they are not concerned with longevity, with statements such as this one:
The 6.7-liter diesel also uses a unique approach to staying cool while working hard to help increase the numbers. It has two separate cooling systems, each with its own radiator and water pump. The primary cooling loop cools the engine while the secondary loop controls the temperatures of the exhaust gas recirculation, fuel and transmission coolers and a brand-new air-to-water charge air cooler that replaces the previous air-to-air intercooler.
Ah -how I long for the days when diesel's were rated not for "Peak" HP & Torque, but instead for "continous duty" HP & torque, where the engine was designed to run 24/7 for the entire life cycle of the engine. 215/440 dosen't sound too bad after it's been at that rating for 10,000 hours constant.
04-14-2010, 12:39 AM
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thats actually some involved though on Fords side.
keeping the EGR circuit separate from the water jackets, will do alot to not over work the cooling system. and happier engine in the long run.
keeping the EGR circuit separate from the water jackets, will do alot to not over work the cooling system. and happier engine in the long run.
04-14-2010, 07:38 PM
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Ah -how I long for the days when diesel's were rated not for "Peak" HP & Torque, but instead for "continous duty" HP & torque, where the engine was designed to run 24/7 for the entire life cycle of the engine. 215/440 dosen't sound too bad after it's been at that rating for 10,000 hours constant.
04-14-2010, 08:12 PM
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04-18-2010, 03:45 PM
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I just noticed on the commercial today that they said it is the "All Ford built Powerstroke" ...I may have missed something in the past couple years, but wasn't the P.S. an IH motor?
And yeah, I like how they sacrifice things for other things. First thing I thought of on the 19.5"s like someone already said...who needs a 90mph truck? Stock, at least. If you buy a dually for it's intended purpose of pulling, you'll want the 19.5"s...if ya wanna mod it or do whatever, put higher speed rated tires on yourself
And yeah, I like how they sacrifice things for other things. First thing I thought of on the 19.5"s like someone already said...who needs a 90mph truck? Stock, at least. If you buy a dually for it's intended purpose of pulling, you'll want the 19.5"s...if ya wanna mod it or do whatever, put higher speed rated tires on yourself
04-24-2010, 08:56 PM
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Ford owns the rights to aweful powerstroke name. I just got the April 2010 trailer life and they got 16.6 mpg out of a F450. And before someone responds with "I can get 123105640mpg from my dually", just my experience usually magazine fuel economy numbers are WAYYY lower than what the average person can get. IIRC motor trend got something like 13-14 mpg from an 03 dodge back in the day. It should be interesting to see whose strategy works better Ford and GM (urea injection, higher initial cost but supposedly lower operating costs) vs. Dodge (lower initial cost but supposedly higher operating costs).
