The third-generation 3.0-liter EcoDiesel V-6 embodies the philosophy that has made FCA US powertrains a dominant auto-industry presence.
“Our goal is to design, engineer and deliver compelling products that exceed the expectations of our customers, while contributing to greater environmental sustainability,” says Micky Bly, Head of Powertrain Engine Engineering, FCA – North America.
In the 2020 Ram 1500, where it makes its debut, the 3.0-liter EcoDiesel V-6 is rated at a best-in-class 480 lb.-ft. of torque at 1,600 rpm, a 14 percent increase from the previous-generation EcoDiesel V-6 that peaks 400 rpm earlier. Horsepower increases 8 percent to 260 hp at 3,600 rpm.
Several significant changes contribute to the new EcoDiesel’s improved dynamic and fuel economy performance:
- A new-generation water-cooled turbocharger with variable geometry turbine (VGT) increases efficiency and responsiveness during transient conditions
- Redesigned cylinder head intake ports improve swirl and flow, increasing performance and fuel economy
- The exhaust gas recirculation (EGR) system design has been updated to a dual loop (low- and high-pressure) system. The added low-pressure circulation system draws gases after the diesel particulate filter, thus minimizing turbocharger energy losses, which increases fuel economy
- The compression ratio has been optimized to 16.0:1 from 16.5:1
- High-pressure (29,000 psi/2,000 bar) direct-injection fuel injector nozzles were redesigned to match the newly designed and optimized combustion chamber
- Lightweight aluminum alloy pistons were completely redesigned to include thinner rings and
- low-friction coating on the pin and side skirts to reduce losses
- NVH has been reduced by offsetting piston pin by 0.3 millimeters from the centerline; thus, minimizing mechanical noises
- The lower portion of the two-piece oil sump uses a lightweight sandwiched polymer/metal material that further reduces NVH
- The dual vacuum pump system uses electric and a new mechanical low-friction pump with new blades that improve overall system efficiency
The upgrades build on the EcoDiesel V-6’s previous success, the attributes and performance of which made it a winner of “Wards 10 Best Engines” for three consecutive years (2014, 2015, 2016).
Please click here to view the full press release.
SOURCE: FCA
