Here’s info I picked up off of JP Magazine’s website this weekend:

More power and torque for our favorite Jeeps

New Jeep Pentastar V-6

Posted Yesterday 05:36 PM by Jp Editor
Filed under: Editorials, Jeep Enthusiast Culture, John Cappa

Chrysler says the Pentastar V-6 engine will replace seven V-6 engines currently in production for Chrysler, Ram Truck, Jeep and Dodge vehicles. And why not? Here is what else Chrysler has to say about the new Pentastar 3.6L V-6:

Chrysler says:

“In the all-new 2011 Jeep Grand Cherokee, the all-new 3.6-liter Pentastar 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 an 11 percent fuel economy improvement.”

JP says:

That’s 85 more horsepower than the 3.8L V-6 currently found in the Wrangler! And better fuel economy! Bring it!

Kevin says:

For those of you who don’t own a JK, the 3.8L in the current Wrangler is EXTREMELY anemic, and fuel economy suffers because it seems like I’m in the throttle all the time just to keep up with traffic.  More Horsepower is a good thing, and hopefully we’ll get better fuel economy to boot, but do you know what ELSE Jeep could do to improve torque and fuel economy??  Diesel!

Chrysler says:

“—the engine’s torque exceeds 90 percent of its peak value from 1,800 to 6,350 rpm, providing customers with outstanding driveability and responsiveness, without the need for premium fuel.”

JP says:

That means no need to rev the motor to the moon to make the low-end grunt often required for off-road driving.

Kevin says:

That kind of sounds like marketing mumbo-jumbo to me.  What engine does NOT develop 90% of it’s peak torque at less than 6,400 RPM?  A motorcycle?

Chrysler says:

“Future applications of Pentastar V-6 will incorporate Multiair, direct-injection and turbocharging”

JP says:

With factory-offered turbo components available on the new Pentastar V-6 it should be even easier to make power in the Wrangler when it gets the Pentastar V-6 too! How’s somewhere in the neighborhood of a reliable 350hp sound? Sign us up!

Kevin says:

Outstanding!  I think forced induction is where it’s at for driveability, fuel economy, and power when you require it.

All-new Chrysler 3.6-liter, DOHC, 24-valve Pentastar V-6 Technical Specifications
Displacement: 3.6 liters
Bore x stroke: 96 x 83 mm
Valve train system: Double-overhead cam with roller finger followers and hydraulic lash adjusters. Dual independent cam-torque actuated phasers
Fuel injection: Multi-point port fuel injection
Construction: High-pressure die-cast aluminum cylinder block and semi-permanent mold aluminum cylinder head
Maximum engine speed: 7200 rpm
Fuel requirement: E85 (Ethanol) or unleaded regular, 87 octane (R+M)/2
Emission capability: PZEV

Kevin Says:

Looks to me like Mopar is headed in the right direction…and I love to see it.  The new JK is an amazing vehicle in so many ways, but the engine makes it FAR less fun to drive than it should be.  As the Beastie Boys said…”Slow and Low that is the tempo” (at least for the current engine).

My hat’s off to Chrysler and the work they seem to be acomplishing in technology of engines and engine management!

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