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Cummins is Reviewing its Emissions Certification Process
2019 Ram Heavy Duty 6.7 liter Cummins I6 with 400hp and 1000 lb ft torque
Cummins has announced its intension to perform an internal review, looking over its emissions certification processes.
Back in January, Fiat Chrysler Automobiles (FCA) agreed to pay about $800 million in fines thanks to multiple lawsuits claiming that diesel engines in Ram pickup trucks violated clean-air rules.
Cummins says that conversations with both the U.S. EPA and the California Air Resources Board (CARB) lead to the company reviewing its own certification processes. The review is being conducted by external advisors according to Cummins, to ensure that it is fair and unbiased.
Cummins recently signed another multi-year deal with FCA to supply 6.7-liter diesel engines for Ram Heavy Duty models, so thee is no doubt that both companies want to make sure there are no issues in the future.
We recently took a Ram 3500 with the 6.7-liter diesel and its 1000 lb-ft of torque and loaded it with a 29,000-lb trailer. Check it out in the video below!
Deep Dive: How Did the New 6.7L Cummins Get to 1,000 Lb-Feet of Torque? Explained (Video)
This is the new Cummins 6.7-liter turbo-diesel and there’s some serious numbers being generated by it.
There is a lot of interest with the new (or significantly updated) 6.7-liter Cummins that’s powering many of the 2019 Ram heavy duty pickup trucks. The fact that this Cummins diesel can make 400 horsepower and up to 1,000-lb-ft of torque is mind blowing.
Cummins is celebrating 100 years in business and it’s their 30th year of powering Dodge/Ram pickup trucks.
Andre interviews Roger Hapka, Lead Engineer for Cummins Pickup Truck Engines, at their engine booth in the 2019 NAIAS (North American International Auto Show) in Detroit, MI.
Roger Hapka and Andre Smirnov talk torque. Photo: TFLtruck
The base of the improvements comes from the Compacted Graphite Iron (CGI) block used in this application. According to Hapka, “It’s a much higher strength material which becomes part of the equation to gain the higher torque capacity.”
Stonier crankshaft, main marring caps with larger bolts, piston-pins with bushings, thicker flex plate (which is 10-bolt replacing the 8-bolt) and more. Yet, despite all of these increases, they focused on noise vibration and harshness including the addition of hydraulic lash adjusters
The numbers speak for themselves. Photo: TFLtruck
A new Bosh fuel-injection unit and a modified turbocharger are both needed for the increased performance demands.
In this video, Andre gets to do a deep dive into this remarkable power plant and gives us a detailed interview to boot!
We will be testing this power plant in every single way we can – including a battle against our toughest test, the “Ike Gauntlet.”
