The torque and power output is excellent for a V6 ...... so chrysler put it in the jeep...
The 3.6-liter V-6 engine, part of Chrysler’s $3.6 billion powertrain offensive, is introduced for the first time in the all-new 2011 Jeep Grand Cherokee. The more fuel efficient V-6 engine features 11 percent improved fuel economy, 33 percent improved horsepower, 11 percent improved torque. Environmental-friendly design: lead-free engine, recyclable oil filter element with no-spill removable feature. “The engine team went out and benchmarked the best in V6s – your Toyotas and Hondas. Found all the elements from each of them to come up with the best V6,” said Matt Nyquist, Jeep Product Planning.
“The all-new Pentastar is the most advanced six-cylinder engine Chrysler has ever offered,” said Bob Lee, Vice President—Powertrain Product Team. “This new family of engines uses an architecture conceived with future technology growth and integration in mind.” The all-new 3.6-liter V-6 engine is an all-new design featuring double-overhead camshafts (DOHC) and a high-pressure die-cast aluminum cylinder block in a 60-degree configuration.
“Our all-new engine delivers better performance and the capability Jeep customers demand.” “Similar to what we did with the HEMI® engine, our engineers used the best combination of design features and technologies to create an engine that satisfies customer requirements”. “The elegantly simple design maximizes the functionality of each design element rather than adding technology to claim a feature. The result gives our customers everything they demand from an engine today—class-leading levels of refinement, fuel-efficiency, performance and cost of ownership.”
The 3.6-liter V-6 engine design features a double-overhead cam (DOHC) and high-flow intake and exhaust ports, which in combination with VVT via dual independent cam phasing, allows optimum volumetric and combustion efficiency over the full speed and load range. This results in an exceptional, flat torque curve along with high specific power. The engine’s torque exceeds 90 percent of its peak value from 1,600 to 6,400 rpm, which provides customers with outstanding drivability and responsiveness.
The all-new 3.6-liter V-6 engine will deliver 290 horsepower (216 kW) at 6,350 rpm and 260 lb.-ft. (353 N•m) of torque at 4,300 rpm, an increase of 38 percent in horsepower and 11 percent in torque over its predecessor, while providing customers up to an 11 percent improvement in fuel economy. The Pentastar V-6 is designed to run on regular gasoline, offering a 10 percent reduction in fuel cost compared with premium fueled engines. The engine also is flex-fuel capable, offering consumers the choice of gasoline or E85 fuel.
An environmental-friendly oil filter system with optional integrated oil cooler is used to help protect the environment via incineration of the filter element. The use of long-life spark plugs and a high-energy coil-on-plug ignition system also helps reduce cost of ownership.
Refinement was a key objective for every component during the design phase of the engine and was achieved by utilizing advanced computer-aided engineering techniques. Structural, intake and exhaust areas of the engine are designed to deliver low levels of overall noise and achieve specific sound quality goals that meet discerning customer requirements. The result is a refined engine in all applications. Idle quality refinement is improved due to use of the dual independent cam phasing.
In developing the Jeep Grand Cherokee’s all-new 3.6L V6 engine, reliability and quality are assured via extensive validation testing. More than 3.3 million customer equivalent miles were accrued on engine dynamometers prior to production. Test severity was increased by 50% versus previous Chrysler V6 engines in order to accommodate high load applications such as trailer-towing.