All-new 2.7-litre turbo available on 2019 Chevrolet Silverado

A 2.7-litre turbo engine will be available for the 2019 Silverado line.
A 2.7-litre turbo engine will be available for the 2019 Silverado line.

The 2019 Chevrolet Silverado 1500 will be offered with an all-new, technologically advanced 2.7L Turbo that expands the range of available engines  and builds upon additional choices to help customers find a Silverado that perfectly suits their needs.

Standard on LT and RST trims, the new engine delivers an SAE-certified 310 horsepower and 348 lb.-ft. of torque, for 22 percent more torque than the 4.3L V-6 it replaces. Developed specifically for truck applications, the new 2.7L Turbo inline four-cylinder engine delivers peak torque from 1,500 to 4,000 rpm.

The next-gen Silverado with the 2.7L Turbo delivers 0-60 mph performance in less than seven seconds and weighs 380 pounds less than the current Silverado with the 4.3L V-6. Compared with competitive full-size trucks, the Silverado 2.7L Turbo is expected to deliver comparable towing and payload capability with greater torque and fuel efficiency than the 3.3L V-6 in the Ford F-150 XLT and the 3.6L V-6 in the Ram 1500 Big Horn.

"The new 2.7L Turbo is a technological marvel, with our most advanced valvetrain," said Tom Sutter, chief engineer for the 2.7L Turbo. "With a broad, flat torque curve and quick throttle response, it punches above its weight, delivering surprising performance and efficiency."

The cornerstone of the 2.7L Turbo is an innovative double-overhead-cam valvetrain that enables Chevrolet's first use of Active Fuel Management (cylinder deactivation) on a turbocharged engine, high- and low-lift valve profiles, and continuously variable valve timing.

Additional engine technologies supporting the engine's performance and efficiency include:

  • Dual-volute turbocharger housing, for improved throttle response and low-speed torque.
  • Chevrolet's first application of Active Thermal Management, which uses targeted engine heating and cooling to improve engine performance in hot and cold ambient temperatures.
  • An integrated exhaust manifold that is part of the cylinder head assembly and recovers exhaust heat for faster engine and transmission warmup, with quicker turbo response.
  • Stop/start technology that automatically stops the engine in stop-and-go traffic for fuel efficiency.
  • An electric water pump that eliminates the drag of a conventional, engine-driven pump to enhance efficiency. It also enables continual cabin heating even when the engine is shut off by the stop/start feature.

Designed as a truck engine

The new 2.7L Turbo engine represents a clean-sheet design for Chevrolet and was developed from the outset as a truck engine.

To help generate the strong, low-end torque customers expect in a truck, it was designed with a long piston stroke of 102 millimetres (4.01 inches), which is the distance the piston travels up and down within the cylinder.

The long stroke enables improved combustion and thus a higher compression ratio. Typically, a long stroke can increase the load of the pistons against the cylinder walls, generating more friction. That's alleviated in the 2.7L Turbo with an offset crankshaft. It is slightly off-center from the cylinders, allowing a more upright position for the connecting rods during their movement.

To support the high cylinder pressures that come with turbocharging, the crankshaft is made of forged steel, and the pistons are made of a tough aluminum alloy with a cast iron ring groove insert.

All elements of the 2.7L Turbo were designed for the demands of turbocharged performance in a truck environment; the engine was subjected to the same rigorous durability standards as the Silverado's proven V-8 engines.

The 2.7L Turbo features an aluminum block and cylinder head for reduced mass.

The 2.7L Turbo's valvetrain is GM's first to incorporate variable lift, duration and Active Fuel Management to optimize performance and efficiency across the rpm band. It is a key reason the engine's peak torque is available at only 1,500 rpm.

The system's electro-mechanical, variable camshaft effectively allows the engine to operate with three different camshaft profiles, complementing the variable valve timing system to deliver optimized operating modes for different engine speeds and loads:  

  • High valve lift for full power
  • Low valve lift for balance of power and efficiency
  • Active Fuel Management shuts down two of the cylinders in light load conditions to further conserve fuel

"It's like having different engines for low-, and high-rpm performance," said Sutter. "The camshaft profile and valve timing is completely different at low and high speeds, for excellent performance across the board."

The camshaft design alters the lift of the intake and exhaust valves. As the engine load changes, electromagnetic actuators allow a movable shaft containing different cam lobes to shift imperceptibly between high-lift and low-lift profiles.

Lift is the distance the valve travels from its seat when opened, and duration is the amount of time the valve remains open. Higher lift and longer duration allow more air to flow into the combustion chamber, so the system's high-lift lobe profile enhances performance at higher rpm, while the low-lift profile optimizes efficiency at low- and mid-range speeds.

Dual-volute turbocharger builds torque

The 2.7L Turbo engine employs an advanced dual-volute turbocharger that elevates the performance and efficiency advantages of a conventional turbo, with quicker response and enhanced low-rpm torque production.

Rather than a single spiral chamber (volute) feeding exhaust gas from the exhaust manifold to drive the turbine on the turbocharger, the dual volute design has a pair of separate chambers with two exhaust gas inlets and two nozzles to drive the turbine. The design allows the exhaust pulses of the engine to be leveraged for faster spool-up and subsequent boost production, particularly at low rpm, where the effect significantly enhances torque output and driveability.

It works in unison with the engine's integrated exhaust manifold/turbocharger housing, which splits the exhaust channels from the cylinder head so the exhaust flows through two separate channels in the turbo housing, based on the engine's exhaust pulses. When complemented by the precision of the engine's valvetrain, that separation leverages exhaust scavenging techniques to optimize gas flow, which decreases exhaust gas temperatures, improves turbine efficiency and reduces turbo.

An electronically controlled wastegate and charge-air cooling system support the turbocharger and enhance its effectiveness. Compared to a conventional wastegate, the electronically controlled version offers more precise management of the engine's boost pressure for smoother, more consistent performance.

With the charge-air cooler, the pressurized, heated air generated by the turbocharger is pumped through a heat exchanger before it enters the engine. That lowers the air charge temperature by about 74 degrees Celsius (130 F), packing the combustion chambers with cooler, denser air that enhances power production. The system achieves more than 80 percent cooling efficiency with less than 2 psi (12 kPa) flow restriction at peak power, contributing to the engine's available torque production at low rpm.

A variable-pressure oiling system, with a continuously variable-displacement vane oil pump, enhances efficiency by optimizing oil pressure as a function of engine speed and load. With it, the oil supply is matched to the engine requirements rather than the excessive supply of a conventional, fixed-displacement oil pump.

Active Thermal Management helps the engine warm up faster and achieve its optimal engine temperature for performance and efficiency. The system uses a rotary valve system to distribute coolant through the engine in a targeted manner. It sends heat where it's needed to warm up the engine to reduce friction and heat the cab, or cools when needed for high power operation.

An electric water pump - a first for Chevy trucks -supports the Active Thermal Management system and further enhances the engine's performance and efficiency by eliminating the parasitic drag that comes with a conventional engine-driven water pump.

Direct fuel injection is used to optimize efficiency and performance. With direct injection, a higher compression ratio (10.0:1) is possible because of a cooling effect as the injected fuel vaporizes in the combustion chamber, reducing the charge temperature and improving resistance to spark knock. Direct injection also enables scavenging from the combustion chamber to the turbo for fast response.

Dual overhead camshafts contribute to the 2.7L Turbo's smoothness and high output, with dual independent continuously variable valve timing working with the valvetrain to deliver optimal performance and efficiency. The dual independent system, which allows the intake and exhaust valves to be phased at different rates, promotes linear delivery of torque, with near-peak levels over a broad rpm range, and high specific output (horsepower per litre of displacement) without sacrificing overall engine response or driveability.

An integrated exhaust manifold on the cylinder head assembly promotes faster engine warmup and quicker turbo response.

Oil jets located in the block are employed for performance and temperature control. They target the underside of the pistons and the surrounding cylinder walls with an extra layer of cooling, friction-reducing oil. The jets reduce piston temperature, allowing the engine to produce more power and enhance long-term durability.

Stop/start enhances fuel economy in city driving. The driver-selectable system shuts off the engine at stoplights and certain other stop-and-go situations, saving fuel. The engine automatically restarts when the driver takes their foot off the brake.

The all-new 2.7L Turbo is matched with a Hydra-Matic eight-speed automatic transmission, featuring enhancements designed to improve shift quality, as well as a new centrifugal pendulum absorber torque converter that reduces vibrations to improve smoothness.

The 2019 Silverado goes on sale this fall. Transport Canada fuel economy estimates and towing/payload capacities are not available yet and will be announced closer to launch.

Company Info

Related Products

Latest News

Tags
Industry News
Pipelines

Operations strong but challenging Canadian industry knocks Cenovus for net loss in 2018

Overall, Cenovus's 2018 upstream financial results were significantly impacted by widening light-heavy oil price differentials, which reached historical highs in the fourth quarter, as well as realized hedging losses of $1.6 billion largely in the first three quarters of the year.

Cenovus Energy Inc. delivered strong operating performance in 2018 but took a financial hit in the process, the company reported in its year-end results release. While solid production continued across Cenovus operations, a $1.3 billion loss in the fourth quarter pushed it to a net loss of $2.9 million for the year.

Read More

Tags
Industry News

Oil and gas price forecasts tempered; DBRS sees no impact on credit ratings

Oil and gas price forecasts tempered; DBRS sees no impact on credit ratings

With growing evidence of a softening in global economic activity, DBRS Limited (DBRS) is tempering its base case price forecast for West Texas Intermediate (WTI) oil and Brent Oil over the period 2019 through 2021. DBRS is also reducing its base case forecast for the spot price of natural gas delivered at AECO in Alberta due to continued weak supply and demand fundamentals for Canadian natural gas. A CAD/USD exchange rate of 0.75 (versus 0.78 previously) has been assumed over the forecast period to align with current exchange rates. The current forecasts are updated from the previous forecasts published on October 26, 2018. See the commentary "DBRS Updates Oil and Gas Price Forecasts: Discounted Commodity Prices in Canada Remains the Prevailing Theme."

Read More

Doosan Portable Power introduces dual-flow air compressor with 210 cfm high-pressure mode

For reduced downtime, the P250/HP210 runs eight hours at 100 percent load on low-pressure mode and nine hours at 100 percent load on high-pressure mode.

Doosan Portable Power has introduced the P250/HP210 Tier 4 Final portable air compressor. The "two-in-one" model delivers the pressure and flow typically supplied by two units in a single air compressor. The P250/HP210 is the only air compressor on the market to offer 210 cfm high-pressure mode.

Read More

Tags
Industry News
Instrumentation, Systems & Automation

FLIR launches industry-first high-definition handheld cooled optical gas imaging camera for oil and gas inspection professionals

The new GF620 is FLIR's highest resolution OGI camera. Equipped with a 640x480 infrared detector, the camera is calibrated to measure temperature, allowing the user to assess the thermal contrast between the gas and the background scene, and adjust it to improve visibility.

FLIR Systems, Inc. has introduced what it calls the industry's first high-definition (HD), handheld optical gas imaging (OGI) camera, the FLIR GF620. Designed for oil and gas industry professionals, the GF620 camera sets a new standard for detecting and visualizing invisible leaks of hydrocarbons, such as methane, and common volatile organic compounds (VOCs). With four times the pixels of previous models, the HD resolution GF620 helps inspectors survey for fugitive hydrocarbon emissions from further, safer distances than possible with lower-resolution OGI cameras. 

Read More

Tags
Industry News

ARC Resources Ltd. reports fourth quarter and year-end 2018 financial and operational results

ARC Resources Ltd. has reported its fourth quarter and year-end 2018 financial and operational results. Fourth quarter production averaged 136,502 boe per day, net income was $159.7 million ($0.45 per share), funds from operations totaled $208.6 million ($0.59 per share), and net debt was $702.7 million as at December 31, 2018. 

Read More

2019 Ram Chassis Cab brings capability and advanced technology

While keeping true to the work truck mission, Ram Chassis Cab designers worked closely with engineering to give Ram's line of halo-capability trucks an optional level of comfort with the new Limited model for those customers who have an enthusiast's passion and want a fitting truck to handle the weight.

The new 2019 Ram 3500, 4500 and 5500 Chassis Cab will usher in a new generation of work trucks — one that leads the segment in capability, but also never-before-offered comfort and technology. Ram Chassis Cab trucks are the most durable, most capable and most confident cab and chassis trucks Ram has ever engineered. With a towing capacity up to 35,220 pounds, the highest Gross Combined Weight Rating of 43,000 pounds and payload up to 12,510 pounds, Ram's heaviest haulers are built for unforgiving duty cycles while achieving new levels of efficiency and upfitter friendliness.

Read More

Tags
Industry News

Schneider Electric research tracks corporate energy and sustainability progress, obstacles

More than 50 percent of respondents work for companies that have made public commitments to energy, carbon and waste reduction, and are turning words into action.

Schneider Electric has released the 2019 Corporate Energy & Sustainability Progress Report, a look at the global trends, barriers and opportunities impacting enterprise energy and carbon-management programs. Although corporate teams responsible for these efforts still struggle with funding and data, the report reveals that a majority of large companies have set public-facing sustainability targets — goals that are driving the adoption of innovative strategies and technologies, and shifting perceptions of the value of conservation and climate action.

Read More

Tags
Industry News

Malaysian refinery trusts Rotork Client Support Programme for tailored valve actuation management

Awarded to Rotork Malaysia, the CSP will run for two years initially, with the option to extend to four. It is designed to meet the company's specific needs, encompassing 157 Rotork electric actuators, a Rotork Master Station and Pakscan control loop testing facility.

The Rotork Client Support Programme (CSP) has been chosen by the Hengyuan Refining Company Berhad for the asset management of Rotork valve actuation equipment at its Port Dickson refinery, which is the leading refiner, manufacturer and supplier of petroleum products in Malaysia.

Read More

Tags
Industry News

Oil Spill Response Limited (OSRL) announces new global UAV service for members

To facilitate the service on a global basis, and to ensure the shortest time to mobilization, OSRL has signed ‘call-off agreements' with a number of third-party UAV providers around the world.

Oil Spill Response Ltd (OSRL) has expanded its member offer with the launch of an Unmanned Aerial Vehicle (UAV) service. The new service aims to enhance preparedness and response capabilities to better support members' needs in the event of a spill.

Read More

Tags
Drilling & Production
Industry News

Average January rig count for Canada sees increase: Baker Hughes

Baker Hughes, a GE company announced  that the Baker Hughes international rig count for January 2019 was 1,023, down 2 from the 1,025 counted in December 2018, and up 63 from the 960 counted in January 2018. The international offshore rig count for January 2019 was 241, up 7 from the 234 counted in December 2018, and up 45 from the 196 counted in January 2018.

Read More

Tags
Environmental
Industry News

MGX Minerals announces oilsands lithium extraction and wastewater treatment system deployments

MGX Minerals Inc. and engineering partner PurLucid Treatment Solutions are pleased to report a second deployment of an advanced wastewater treatment system is near completion and commissioning is expected shortly. The system is capable of processing up to 10 cubic metres per hour. The system will significantly reduce greenhouse gases through energy savings on steam generation. The technology provides superior treatment outcomes when compared to conventional technology which requires offsite trucking and high cost (due to toxicity) disposal. 

Read More

Tags
Drilling & Production

BHGE introduces light non-composite conventional frac plug

Constructed completely of an engineered alloy material, the MILLITE plug does not contain any heavy metal or ceramic parts, making it the lightest conventional plug on the market.

Baker Hughes, a GE company has introduced the MILLITE lightweight frac plug, which mills out more smoothly and cleans up better than any other conventional frac plug on the market, cutting costs and helping customers achieve first oil faster.

Read More

Chevrolet debuts all-new 2020 Silverado HD lineup

New, more powerful 6.6L V-8 gas engine with direct injection for greater performance and stronger trailering capability with 21 percent more torque and up to 18 percent more towing compared to previous 6.0L gas engine.

Chevrolet has debuted the full lineup of its all-new 2020 Silverado HD — the strongest, most advanced, most capable Silverado HD ever. Max towing capability increases an enormous 52 percent to an available 16,102 kilograms (35,500 pounds). It is also the third all-new Silverado in just 18 months, each designed for different customers.

Read More

Tags
Industry News

Suncor Energy reports fourth quarter 2018 results

Funds from operations were $2.007 billion ($1.26 per common share) in the fourth quarter of 2018, compared to $3.016 billion ($1.83 per common share) in the prior year quarter.

Suncor saw a slower fourth quarter in 2018 than the year previously thanks to price differentials and other factors, but overall experienced a solid 2018, according to the company's Q4 earnings statement.

Read More