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FCA's Pentastar V6 gets more power, efficiency for 2016

Already a vital member of FCA's powertrain lineup, the 3.6-liter Pentastar V6 is receiving major efficiency improvements for 2016. Thanks to a massive amount of new tech attached to the mill, fuel economy is up six percent, and torque below 3,000 rpm jumps nearly 15 percent. The updates arrive first in the 2016 Jeep Grand Cherokee, but they should proliferate to other models eventually. At least in the Grand Cherokee, the tweaks push power up five horsepower to 295 ponies. FCA's engineers went through the Pentastar from top to bottom to eke out as much efficiency as possible. For example, there's now a two-speed variable-valve lift system that can run in low- or high-lift modes. This upgrade is responsible for 2.7-percent better economy, the company claims. A new intake manifold with longer runners and updated variable-valve times also helps boost the torque output. Further improvements come from pushing the compression ratio to 11.3:1, from 10.2:1 before. Perhaps most impressive is that despite all of the innovations, the latest Pentastar actually weighs four pounds less than the current version. Beyond the Pentastar improvements, all of the FCA US gasoline engines, except for the Viper's 8.4-liter V10, will be E15-compatible for 2016. The company says that it wants to be ready for the higher ethanol content fuel's greater use in the near future.

Ford Explorer, Jeep Grand Cherokee flunk IIHS passenger-side crash test

The Insurance Institute for Highway Safety (IIHS) has uncovered major safety-related problems while crash testing a number of popular midsize SUVs. Among those that scored an overall rating of "poor," the lowest possible score, are the Ford Explorer and Jeep Grand Cherokee. Both SUVs showed a high risk of injury to a front passenger during the IIHS' passenger-side small overlap front crash test. This test simulates what might happen if a car or SUV strikes an immovable object, like a telephone pole, at 40 mph and with roughly 25-percent of its front width. "Although some vehicles in this group offer very good protection, in other models, the airbags, safety belts and structure showed serious deficiencies," says IIHS chief research officer, David Zuby. "In those SUVs, a front-seat passenger would be at risk of injuries to the head, hip or leg in a right-side small overlap front crash." In the 2018 Ford Explorer, the front of the SUV showed the structure was "seriously compromised" during both driver- and passenger-side small overlap crash testing, according to the IIHS. The lower and upper door hinge pillar showed intrusion levels of 15 and 13 inches, while the door sill itself was pushed inward 6 inches toward the crash test dummy. The IIHS states these results indicate a high probability that a front occupant would suffer injuries to their right hip and lower left leg. The 2018 Jeep Grand Cherokee didn't fare much better. Not only did the Jeep exhibit 10 inches of intrusion at the lower door hinge pillar, the front passenger crash test dummy's head hit the dashboard through the front airbag. Worse still, the side curtain airbag didn't deploy and the front passenger door opened. The IIHS says there is a strong chance this would result in right leg injuries, along with the possibility of a serious head injury. Even vehicles that earned an "acceptable" in the small overlap front crash test showed definite room for improvement. The 2018 Honda Pilot, for example, showed good structural performance during the crash itself. But the front passenger crash test dummy's head slid off the deployed airbag and hit the dashboard hard, indicating a head injury might result in a similar real-world crash scenario. Two other SUVs that scored "acceptable" ratings included the 2018 Nissan Pathfinder and 2018 Toyota Highlander. Scoring top marks of "good," the highest rating, in these IIHS crash tests were the 2018 Volkswagen Atlas, 2018 GMC Acadia, and 2019 Kia Sorento.

2016 Jeep Wrangler to ditch solid axles to save weight?

Hey, Jeep fans. If you think the idea of a funky-looking, car-based Cherokee revival is offensive, have a listen to what might be in store for the next-gen Jeep Wrangler. Automotive News is reporting that as Jeep develops the 2016 Wrangler, weight reduction is a crucial target, and the Wrangler's rugged solid axles could be sacrificed in the name of better fuel economy.
We've already heard the next Wrangler will go on a serious diet using aluminum body panels and an air suspension system, so the idea of a four-wheel independent suspension setup for this OG SUV isn't all that surprising. Besides, it's not like an independent suspension would limit the Wrangler's off-road abilities - just check out the Hummer H1. In fact, it might be the aftermarket parts companies - not Wrangler enthusiasts - who would be most disappointed by such a drastic suspension change, as the article states that the Wrangler's solid axles and coil-link suspension make it the most popular SUV for customization.
There are probably still a couple years before we'll start hearing any concrete details about the 2016 Wrangler, at which time it will be interesting to see how stricter fuel economy and crash safety regulations have been balanced with traditional Wrangler cues like its removable doors and roof and folding windshield. Let us know in the comments below if a Wrangler sans solid axles is any less of a Wrangler.