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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.

Autoblog Podcast #413

Episode #413 of the Autoblog Podcast is here, and this week, Dan Roth, Chris Paukert, and Brandon Turkus recap all of the big debuts that took place this week at the 2015 North American International Auto Show in Detroit. Of course, the podcast starts with what's in the garage and finishes up with some of your questions, and for those of you who hung with us live on our UStream channel, thanks for taking the time. Check out the rundown with times for topics, and you can follow along down below with our Q&A. Thanks for listening! Autoblog Podcast #413 The video meant to be presented here is no longer available. Sorry for the inconvenience. Topics 2015 Detroit Auto Show In The Autoblog Garage 2015 Chevrolet Trax 2015 Audi RS 5 2015 Ford F-150 Long-Term 2014 Jeep Cherokee Hosts: Dan Roth, Chris Paukert, Brandon Turkus Runtime: 01:xx:xx Rundown Intro and Garage - 00:00 2015 Detroit Auto Show – 37:49 Q&A - 01:32:48 Get The Podcast UStream – Listen live on Mondays at 10 PM Eastern at UStream iTunes – Subscribe to the Autoblog Podcast in iTunes RSS – Add the Autoblog Podcast feed to your RSS aggregator MP3 – Download the MP3 directly Feedback Email – Podcast at Autoblog dot com Review the show in iTunes

Jeep Cherokee Trail Carver is a more rugged Trailhawk

We briefly mentioned the Jeep Cherokee Trail Carver that was heading to SEMA last week when discussing the Mopar lineup set to be shown in Las Vegas. At the time, though, we weren't able to dive too deeply into details. But with SEMA in full swing, we were able to sneak over and grab some snaps of one of the first modified Cherokees we've seen. The Cherokee is, after all, kind of an unknown quantity in the modification department, being so new and featuring such a polarizing design. We were quite interested to see what Mopar could come up with.
Starting with the Trailhawk 4x4 and its 3.2-liter V6, the engine is fitted with a Mopar cold-air intake and a new exhaust, although it's not clear what sort of power boost has resulted. We'll admit, we were hoping Jeep and Mopar would get a bit more aggressive with the Cherokee's suspension (has anyone thrown a few-inch lift on the new Jeep yet?), but there's no mention of upgrades beyond the knobby, off-road tires. Those should do some good when the going gets rough, while rock rails are there to protect the Auburn Pearl paint on the body.
Speaking of that paint, it's complemented by an interesting graphics package in contrasting black and Crush Orange. The cabin sports Katzkin Amaretto leather seats, along with tech-friendly items like a wireless charging system for cellphones and wireless internet.