Forum Discussion
- Fake news.
Wild Card wrote:
RCMAN46 wrote:
Wild Card wrote:
No brainer that the inline engine produces more torque. Hp is derived by the RPM the engines can spin to...again no brainer that the V engines spin faster thus produce more HP.
Lets take a look at the spes.
Ram 6.7 385 hp @ 2800 rpm
900 ft/lbs @ 1700 rpm
Ford 6.7 440 hp @ 2800 rpm
925 ft/lbs @ 1800 rpm
Duramax 445 hp @2800 rpm
910 ft/lbs @1600 rpm.
Again... Horse Power is a calculation.
Torque in ft# X RPM /5252, thats it...this is the only way to calculate Horsepower
I also dont buy those numbers above. The V8 diesels red line almost 1k RPM above the I6. Do the math yourself.
Buy the numbers or not but they are the numbers published by the respective truck manufacturers.
Take The time to look them up at the respective truck websites.
Despite popular belief the chassis dynamometer measures horsepower directly and then the computer calculates the torque curve.
Look up how a chassis dynamometer works.RCMAN46 wrote:
Wild Card wrote:
No brainer that the inline engine produces more torque. Hp is derived by the RPM the engines can spin to...again no brainer that the V engines spin faster thus produce more HP.
Lets take a look at the spes.
Ram 6.7 385 hp @ 2800 rpm
900 ft/lbs @ 1700 rpm
Ford 6.7 440 hp @ 2800 rpm
925 ft/lbs @ 1800 rpm
Duramax 445 hp @2800 rpm
910 ft/lbs @1600 rpm.
Again... Horse Power is a calculation.
Torque in ft# X RPM /5252, thats it...this is the only way to calculate Horsepower
I also dont buy those numbers above. The V8 diesels red line almost 1k RPM above the I6. Do the math yourself.4x4ord wrote:
RCMAN46 wrote:
Wild Card wrote:
No brainer that the inline engine produces more torque. Hp is derived by the RPM the engines can spin to...again no brainer that the V engines spin faster thus produce more HP.
Lets take a look at the spes.
Ram 6.7 385 hp @ 2800 rpm
900 ft/lbs @ 1700 rpm
Ford 6.7 440 hp @ 2800 rpm
925 ft/lbs @ 1800 rpm
Duramax 445 hp @2800 rpm
910 ft/lbs @1600 rpm.
The number of cylinders has absolutely nothing to do with torque.
That is not what I said, now is it?RCMAN46 wrote:
Wild Card wrote:
No brainer that the inline engine produces more torque. Hp is derived by the RPM the engines can spin to...again no brainer that the V engines spin faster thus produce more HP.
Lets take a look at the spes.
Ram 6.7 385 hp @ 2800 rpm
900 ft/lbs @ 1700 rpm
Ford 6.7 440 hp @ 2800 rpm
925 ft/lbs @ 1800 rpm
Duramax 445 hp @2800 rpm
910 ft/lbs @1600 rpm.Cummins12V98 wrote:
Percentage of advertised HP and TQ loss.
RAM
HP loss 12 percent
TQ loss 8
Ford
HP loss 12
TQ loss 13
GM
HP Loss 24
TQ loss 15
This doesn't make sense. Another way of stating this should be to say, at 2800 rpm both the Ram and Ford made 88% of the manufacturer's rated torque at 2800 rpm.
Yet for some reason at lower rpm the manufacturers apparently over rate the Ford and under rate the Ram. Or the dyno by.bers are off. My guess is the dyno numbers are off.RCMAN46 wrote:
Wild Card wrote:
No brainer that the inline engine produces more torque. Hp is derived by the RPM the engines can spin to...again no brainer that the V engines spin faster thus produce more HP.
Lets take a look at the spes.
Ram 6.7 385 hp @ 2800 rpm
900 ft/lbs @ 1700 rpm
Ford 6.7 440 hp @ 2800 rpm
925 ft/lbs @ 1800 rpm
Duramax 445 hp @2800 rpm
910 ft/lbs @1600 rpm.
The number of cylinders has absolutely nothing to do with torque.- I want a red one. I don't care which brand.
- who cares about the dyno, hook the same trailer to each, race them uphill, downhill, see who stops fastest and then measure fuel economy. They are all great at what they do bottom line is bang for the buck and reliabilty. A new diesel will run 60-75k to buy. Frankly you can bulletproof an older 6.0 for much cheaper, you can find an 06-07 duramax, an older 5.9 cummins that you can tune and not deal with DPF and DEF. I went from diesel to a 3v v10 yeah mielage sucks but it tows good and its cheap to maintain, I can replace my engine 3 times vs 1 6.7 diesel.
- A Chassis dynamometer or more correct an inertia dynamometer does not do well in measuring peak torque on a Diesel engine.
The testing is usually started at an RPM that is greater than the max torque rpm.
