Cummins is a bulletproof motor in a turd of a truck. It also features Tow/Haul mode for reduced shift cycling and Auto Grade Braking, which automatically downshifts when needed for engine braking and reduced brake wear. As mentioned above, most people buy diesel trucks for their superior torque output. 6.7L Power Stroke engine has everything. the first range of duramax had injector issues that are under the valve covers and extremely hard to get to. In 2011, they replaced 6.4l to 6.7l. Verdict: The PSD and CTD are pretty neck-in-neck when it comes to torque production. The OEM fasteners may not handle the load if youre boosting horsepower and compression ratio. In the Nissan Titan XD, the Cummins engine makes 555 lb-ft, but in the 2018 Ram Heavy Duty, the Cummins makes 930 lb-ft of torque. ft. limit with the Ram 3500 Heavy Duty, with the 400 hp High Output I-6, with a six-speed transmission. Knowing these three diesel engines, it will be challenging to select the most reliable engine for you. Here is some quick data about each platform. If you use poor quality fuel and do not change the fuel filter regularly, the injection system will face a problem. Both put out similar horsepower and torque numbers, and both can tow as much as any non-CDL driver would ever need. I would go full gages, lift pump, super fuel and oil filtration, Fluidampr, Gearvendor, and any other weak condition on these Dodges as I've done with my GM diesels. Then, in early 1994, Ford introduced the 7.3-liter Powerstroke engine. Interior is better and so is the ride, but as far as easy to work on and having all out towing grunt you can't beat a cummins. 2 viewed per hour 6 liter Duramax Diesel will compete with It has a twin turbocharger and a 4-valve-per-cylinder valvetrain. Power: 370 hp @ 2,800 rpm (68RFE automatic transmission) Torque: 1,050 lb-ft @ 1,800 rpm Whether you decide to buy a Ram Cummins diesel or a Ford Powerstroke diesel truck, you can count on ProSource Diesel to supply all the aftermarket diesel truck parts you need to get the most out of your vehicle. the 05.5-6.5 i believe have coolant flow issues and will overheat under a load in all situations. We provide top quality parts for the specific make of your diesel truck. Sometimes the high-pressure fuel pump creates a small crack on the fuel filter. This contributes to the reliability of the 7.3 liter Powerstroke found in models such as the 2000 Ford F-250 diesel pickup truck. Compression ratio: 16.2:1 Winner: Power Stroke. It seems like he found it. Don't be afraid to travel/have shipped. Valvetrain: OHV with four valves per cylinder The pump produces debris to the entire fuel system, and you have to replace the fuel pump and other parts. Then they update the displacement. The bearings are made from ceramic, which creates issues most of the time. So to make them better buy parts from us. Other than that I LOVE my cummins. Powerstroke Diesel vs. Cummins Turbo Diesel Reliability. The ISB is used in everything from transit buses, box trucks, mining equipment, construction equipment, generators, pumps, etc. A closer look at these two engines might reveal the better choice for a particular buyer. What is the gas mileage on a Silverado 2500 HD? MechanicAble. when I open my hood I can see the engine..the duramaxes and even the powerstrokes are a nightmare to get to things. After having the injectors replaced right inside the warranty, I added up the total in repair bills I would have paid if not under warranty. It faces clogging injection, burn out tank heater, damage NOx sensor, and other issues are very common. If you want to buy a motor, between the two I say CUMMINS POWA! But it depends on your comfort and choice, so knowing which is better, you should try them all and then decide. This heavy-duty engine has a common-rail Bosch CP3 injection pump, which is different from other engines, 4-valves-per-cylinder is another improvement. Thats one of the reasons Cummins-equipped Ram trucks are a favorite choice for those looking for a capable tow vehicle. Verdict: Its a tie as all light-duty PSD or CTD trucks come with the same length of warranty. Is Cummins 6.7 Turbo Diesel a good engine? It was a 5.9L six-cylinder 12-valve turbodiesel engine that generated 160 horsepower and 400 lb.-ft. Other trucks were available with diesels, but turbocharging took diesel performance to the next level. Both are great trucks, but I'd vote for a Cummins all day long. Within six years, the company offered the first 100,000-mile warranty. Should you have questions during any point in the research process, contact our Chevy dealership in Boonville, MO, 6.7L high-output Cummins turbo-diesel I6. The top problems on these two engines are as follows: The exhaust manifold issue with shrinking and cracking is most often found on trucks with the CTD that do a lot of towing. There was a magazine article I read comparing the 07 diesels in from the big three. The other two big brands, Ford and General Motors, were using diesel engines in their trucks, but they didnt have turbochargers. It has a NOx sensor that can damage at high exhaust temperatures. Head Material: Cast iron Powerstroke engine is another reputed line for power and heavy-duty vehicles. Cummins is still the diesel offering for Ram Trucks, which before 2010 were known as Dodge Ram trucks. Asking in the mechanical forum because I'm In the 2007 model year, the 5.9L Cummins converted into 6.7 liters. The CTD is the oldest diesel engine of the two. The design of the crankcase ventilation system is not that good. But the newcomers from Ford and GM have pushed Cummins away from complacency. Learn more about engine specifications, additional capabilities, and other ratings to ensure you select the right engine for your exact requirements. And i can work on my cummins, i wouldnt know where to start on hers. If youre embarking on a high-performance build, a weak head stud or fastener can be catastrophic for the performance and the life of your vehicle. In 2004, they updated the engine that calls the LLY engine. The GM 6.6 L Duramax engine is known for its reliability. In fact, its one of the most reliable diesel engines on the market. Thats why so many truckers and commercial drivers rely on it. When properly maintained, the Duramax engine can last for hundreds of thousands of miles. Its also capable of pulling heavy loads without breaking a sweat. Displacement: 6.7L (408ci), 6.4L Power Stroke. In the end, it's cheaper to make 800 horse with a cummins than a duramax. However, as noted by AutoWise, the Power Stroke ultimately produces more horsepower, which is a better indicator of engine strength in real driving situations. Check out the following examples of torque production on different trucks and engines: Going by engines alone, the first generation 7.3-liter PSD made 425 pound-feet of torque. If youre looking for torque, this is the engine you want. Overall, the 6.7L I6 Turbo-Diesel High Output Cummins engine from Ram takes the cake when it comes to the best towing and payload abilities. If you need heavy-duty power, the Cummins or Duramax diesel engines can help you complete your work without fail. But some of them are still you can feel such as. The six-bolts-per-cylinder head design and the low stock cylinder pressure contributed to its long life. In 1998, the P7100 injection pump created 215 horsepower and 420 lb.-ft. Of torque. Came out to around $7,000 in two years. It has a cast-iron block and cylinder heads. But in daily use, you may not notice. If youre looking for an engine that will withstand your plans for insane amounts of power, consider the 6.4L Power Stroke from 2008-2010 F-250s and F350s. If youd like to go old school, check out the 2006-2007 Chevrolet/GMC 2500HD and 3500HD. Valvetrain: OHV with four valves per cylinder All three engines will benefit from upgrading the cylinder head fasteners. Bore x stroke: 4.21 x 4.88 inches The fastest was the duramax, the fastest loaded pulling 20K was the duramax. in 2003, they invented a common-rail injection system. The engine was first created for farm use, and then it was produced for vehicles like ram trucks, busses, Fiat Chryslers Ram, and Many other truck makers. Although they have some superficial differences so which brand is the best, it depends on your choice. Although diesels are designed to run thousands of miles, just about every engine type has suffered from a bout of poor reliability. In 1982, General Motors produced a 5.7L Duramax engine with 120 horsepower and 220 lb.-ft. of torque. However, horsepower is also important for towing and hauling. The 6.7L Cummins and the 6.7L Power Stroke share the same displacement, while the 6.6L Duramax comes in last. Cummins has the edge in long-term diesel design and building experience. Lots of good input right off the batt! The replacement PSD was a 6.0-liter, and it offered more power than the previous engine, but it also ran into a number of problems. More on Diesel Engines!Driving the 2019 Ram 3500 Heavy DutyDriving Chevrolet Diesel-Powered Silverados2020 Ford's Super Duty Pickup 6.7L Power Stroke Dyno Test. The problems they say with duramaxes arent so bad if you put bettter fuel filtration the injectors on the lb7s will last a very long time also the llys problems are hit and miss and that i believe was only 04.5 to 05 ones then they changed something to fix it lbzs are prettty solid and cracked pistons arent that super common, 93 W250 getrag pump tweak 4inch exhaust hx35, 7x12s, low pressure 2nd gen lp, valair clutch, 2002 LB7 efi 4inch exhaust built allison. What Duramax Does Better Than Powerstroke and CumminsPerformance. While Powerstroke and Cummins lead the diesel market with incredible numbers, with Duramax coming in at third place with 445 horsepower and 910 lb-ft, the efficiency of Duramax is Durability. As the name Duramax suggests, these trucks offer maximum durability. Reliability. Re-Sale Value. This is especially true of the F-150. The 6.7-liter engine ranges in the middle of that at 350,000 with no modifications and proper services. Verdict: PSD engines generally have more horsepower than CTD, and the current engines are no exception. There isnt a wrong choice in most cases, but one may perform better for you. Ram started the party in early 2019, by announcing that the high-output Cummns 6.7L I-6 engine in its heavy-duty rigs makes 400 hp and 1,000 lb-ft of torque (370hp/850 lb-ft for the standard version). I would certainly avoid the upper midwest/east coast, because they salt the hell out of their roads. Power: 445 hp @ 2,800 rpm The following 6.7-liter improved on this with 650 pound-feet. It enables the truck to get up to speed faster. Long the domain of the heavy-duty or light commercial level of pickups, diesels are starting to show up in smaller trucks. Displacement: 6.7L (408 ci) While horsepower and torque for the 6.6L Duramax L5P V-8 engine in Chevrolet's and GMC's 2020 big rigs is still 445hp and 910 lb-ft (since 2017), the powerplant's performance and efficiency was catapulted to the next level by the all-new, Allison ten-speed automatic transmission that is now standard in those rigs. The cylinder heads are made from aluminum, which was also reliable. The first CTD available in Dodge Ram trucks was the 5.9-liter six-cylinder. Hi there! In 2018, they did not upgrade the emission system much, just increase the horsepower at 370 and 800 lb.-ft. of torque. But my dodge will drag my wifes truck up and down the block all day. Filed Under: Car Tagged With: Cummins Vs Duramax, Cummins Vs Powerstroke, Powerstroke Vs Duramax, Your email address will not be published. Which one is best? The fuel line design is also another problem, and there is no fuel lift pump. Motor Trend says the compound turbocharged 350 hp can be massaged to fulfill any pulling dreams you have. Paid the premium price for the diesel for durability. The three engines you refer to are known as medium duty in the industry not actually HD as has been mentioned by others. However, Duramax has never quite matched the best that Cummins and Power Stroke have had to offer. The CTD name is arguably more popular, but Ford pickups are more popular than the Rams. The 5.9-liter engine can expect to churn out 300,000 to 400,000 miles. This contributes to the reliability of the 7.3 liter Powerstroke found in models such as the 2000 Ford F-250 diesel pickup truck. The 6.7L has become a favorite of drag racers, with the high-pressure common rail system and an appetite for handling copious amounts of boost. The 03-04's get good fuel mileage also. Diesel goes light-duty, but this small-but-mighty EcoDiesel is the industrys lone light-duty diesel engine: 6.7L 24-Valve. From 1983-1987, Ford had a 6.9-liter IDI diesel engine made by International Harvester followed by a 7.3L IDI engine. A Cummins diesel first appeared in a Ram pickup in 1989. Plus I was always a Dodge guy. SOLD the cummins - Picked up an 08 LTZ Duramax - Best Decision Ever! Heres a comparison of the best options for given duty applications. Robust, iron parts, conservative power and low engine speed are the key ingredients for any diesel engine lasting foreverand if a 7.3L has gone unmodified yet been well maintained its entire life. The housing is also inadequate. Buyers looking for their first diesel pickup might lean towards the CTD for this reason alone. Why should a prospective truck buyer choose one over the other? The 2018 Chevrolet Silverado HD and GMC Sierra HD Duramax engine make 910 lb-ft. 3rd Gen. That number is the most the average truck owner can tow in the United States without a CDL. Fuel dilution is another problem you will face in this engine. However, diesel engines offer more power than gas engines and generally superior fuel economy. To understand the differences between Cummins Vs. PowerStroke Vs. Duramax, we will have to understand the history and features of each engine. Your email address will not be published. The injection parts are sensitive here. All the chevy engines outside of the newest, 07+ have internal design issues. The most recent model of the F-150 3.0 PSD gets an EPA estimate of 22 mpg city, 30 mpg highway and 25 mpg combined. The CTD offered 400 pound-feet of torque and direct injection as well. The most recent model of the Titan XD 5.5 CTD gets an EPA estimate of 15 mpg city, 21 mpg highway and 18 mpg combined. Glow plugs are a susceptible part and weak point of the engine. While diesel engine builders have come and gone over the years, the top three currently available in pickups are Cummins, Fords Powerstroke, and GMs Duramax. The big three pickup truck manufacturers have offered trucks with diesel engines for more than 30 years. It is only their first venture, the other Powerstroke engine produced by international Navistar. Ford recognized the demand for a diesel in the F-150 and bolted in a Power Stroke that should get up to 30 mpg on the highway. This week, I find the Chevy dealer wants $8,000 to replace injectors and related parts along with pulling the head to remove broken glow plug. The intercooler and connecting tubing often face the problem. You like what you like, and not always for rational reasons. With each model, The Duramax improved in durability, power, fuel efficiency and lower noise. For the CTD, the first 5.9-liter made 400 pound-feet of torque as previously mentioned. They reduce emissions and added several new additions. If you want to buy a truck that will last then get the chevy/gmc. You will find these engines in the early years ofChevrolet Colorado, GMC, Chevy Silverado, and other truck models. Power: 450 hp @ 2,800 rpm The Cummins brand is extremely reliable and prides itself on long-lasting engines. In 2003, the displacement increased to 6.0L. Except it left me sit 6 times. The factory design has some lacking, which is the leading cause of the cooling problem. You simply can't beat the maximum 35,100 lbs. With each model, The Duramax improved in durability, power, fuel efficiency and lower noise. In 1994, Ford and Navistar International debuted the first Power Stroke diesel engine. Most diesel enthusiasts seem to agree that the Cummins Turbo Diesel is the better engine in terms of reliability, but the Easy fix (piece of mind) with more filtration. The Cummins brand is extremely reliable and prides itself on long-lasting engines. In 2011, they released the LML engine and added higher-pressure fuel injection with 397 horsepower and 765 lb.-ft. of torque. But the history of the diesel engine goes back to the 1890s, brought to life by Rudolf Diesel, a French inventor. Cummins. Verdict: Another tie. Step up to head studs from TrackTech Fasteners, which are engineered and constructed for strip and circuit performance for Ford Power Stroke, Chevy Duramax and Ram Cummins applications. Si in 2008, they redesigned the engine in 6.4l and increased 350 horsepower, and 650 lb.-ft. of torque. Failure of these glow plugs can damage the entire engine but the 6.7l resolve the issue, and you wont face this problem much. The second PSD engine in the 6.0-liter improved on this with 570 pound-feet of torque. In 1988, the displacement increased to 7.3L. Required fields are marked *. The best and worst years for Duramax include the 2007 engine, widely regarded as the best, and the 2003 Chevy Engine, which was the most problematic. The Allison 6-speed automatic transmission, exclusively paired with the Duramax engine, offers electronic control with overdrive, which allows for smoother shifting. My wife has a 05 duramax, it does ride nicer and a bit more luxorious interior. The faults or problematic issues are also fewer than Duramax and power stroke. The fittings of the coolant are not that good. Engine: Cummins B-Series. He was looking for an alternative to the steam engine. In 1994 the injection pump was replaced by the Bosch P7100. Are you in the market for a new pickup truck and would prefer a diesel engine? These elements include an electronically controlled variable-geometry turbocharger, a Venturi Jet drain oil separator, and cold-start technology. Hes written extensively on the subject for major publications and is widely considered an expert on the topic.
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