Powerstroke Vs Duramax & Cummins

We compared the Ford Powerstroke against their chronological peers to see who made the best diesel engine!

7.3 Powerstroke Vs. 5.9 Cummins 24-valve ISB

First we run the 7.3 Powerstroke Vs. 5.9 Cummins 24-valve ISB. These engines are truly fundamentally different yet they tend to produce rather similar horsepower, torque and fuel economy figures. The 7.3 L Powerstroke Vs. the competition displaces 7.3 liters or 444 cubic inches while the 5.9 L Cummins at 5.9 liters or 359 cubic inches is a much smaller motor. This discrepancy is brought even more to light when it is considered that the 5.9 L Cummins has two less cylinders than the 7.3 L Powerstroke Vs. the competition, and it becomes rather surprising how the 5.9 L Cummins can keep up. But keep up it does, as the 5.9 L Cummins generates 235 brake horsepower at 2700 rpm but in high output version can go all the way up to a very respectable 325 brake horsepower 2900 rpm. The 7.3 L Powerstroke Vs. the competition pretty well topped out at 275 brake horsepower at 2,800 rpm and 525 lb-ft at 1600 rpm. However, the 7.3 L Powerstroke Vs. the competition has a better reputation for long term reliability than the 5.9 L Cummins, so it is a bit of a draw. 7.3 Powerstroke Vs. 5.9 Cummins = 1 to 1.

6.0 Powerstroke Vs. 6.7 Cummins

Next is the 6.0 Powerstroke Vs. 6.7 Cummins. Although both have a block and head cast from iron, the differences become very obvious when you consider that the 6.0 L Powerstroke Vs. the competition has two extra cylinders over the 6.7 L Cummins and weighs about 150 more than its 6 cylinder competitor. However, the 6.7 L Cummins has a total of 6.7 liters of displacement, equivalent to 408 cubic inches, while the 6.0 L Powerstroke Vs. the competition displaces only 6.0 liters or 365 cubic inches. Surprisingly the power generation is somewhat similar between the engines with the 6.0 L Powerstroke Vs. the competition cranking out 325 brake horsepower at 3300 rpm and 570 lb-ft of torque at 2000 rpm, while the 6.7 L Cummins doles out out 350 brake horsepower at 3000 rpm and 610 lb-ft of torque at 1500 rpm. Generally the 6.7 L Cummins is a thirstier engine than the 6.0 L Powerstroke Vs. the competition but it does generate a bit more power. 6.0 Powerstroke Vs. 6.7 Cummins = A win for Ford for similar performance from a lot smaller motor.

6.4 Powerstroke Vs. 6.6 Duramax LMM

Last up is the 6.4 Powerstroke Vs. 6.6 Duramax LMM. Both the 6.4 L Powerstroke and the 6.6 L Duramax are V8 engines, but while the 6.4 L Powerstroke Vs. the competition head is iron, the 6.6 L Duramax opts for an aluminum head. The displacement and compression ratios are similar with the 6.4 L Powerstroke Vs. the competition displacing 6.4 liters or 390 cubic inches, and the 6.6 L Duramax 6.6 liters or 403 cubic inches, and the compression ratios 16.7:1 vs 16.8:1. The power generation figures are also almost identical. The 6.4 L Powerstroke provides 350 brake horsepower at 3000 rpm, while the 6.6 L Duramax cranks out 365 brake horsepower at 3100 rpm; and the 6.4 L Powerstroke Vs. the competition has 650 lb-ft. at 2000 rpm while the 6.6 L Duramax barely tops it at 660 lb-ft. at 1800 rpm. Both engines have not taken well to new emission standards and suffer from poor economy. 6.4 Powerstroke Vs. 6.6 Duramax LMM is another tie, 1 to 1.

Powerstroke Vs Duramax

Powerstroke Vs Duramax is a tie. When comparing the 6.4 Ford to the 6.6 GM: Not much difference between the two.

Powerstroke Vs Cummins

Ford ties the Cummins in the older engine and wins in the 6.0 Powerstroke Vs. 6.7 Cummins. If only the Ford didn't have such a horrible reliability record with that 6.0 L!

©2010 - WholesaleCarsDirect, Inc. Terms of Service | Privacy | Site Map |     

Car Dealer SEO by