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  #13  
Old 01-31-2011, 10:19 AM
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Re: Overland's V6 Pentastar Engine?

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Originally Posted by the1jake View Post
I can't wait until an aftermarket computer programmer comes out so the shift points can be adjusted. That's my main complaint is the dead spot when accelerating. Sometimes the pedal does feel a bit sluggish, but it's *not* the engine, it's the programming.
Is there any reason for you that the shift points in sport mode are not good? Sport is set up with more aggressive shift points than auto. It also stays in a lower gear at a higher rpm when you are maintaining speed, so it won't have to downshift when you get on it.
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Old 01-31-2011, 10:20 AM
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Re: Overland's V6 Pentastar Engine?

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Originally Posted by the1jake View Post
I have to echo those sentiments. The extra torque would have been nice, but I like the range that I can go on a single tank of gas. I've found it has plenty of power when merging onto the interstate in passing situations. I can't wait until an aftermarket computer programmer comes out so the shift points can be adjusted. That's my main complaint is the dead spot when accelerating. Sometimes the pedal does feel a bit sluggish, but it's *not* the engine, it's the programming.

Now that the 3.6 is making it's way into the rest of Chryco's lineup (e.g. Challenger, Charger, etc.) I'm sure aftermarket tuning options will be just around the corner.

The Pentastar makes some great numbers, but gearing and programming seem to hamper it in the WK2 platform. In the Challenger I believe the 3.6 is producing a 6.4 sec 0-60 time; about 2 secs better than in the WK2. This difference cannot be reconciled by just the weight difference as the Challenger is a heavy vehicle as well. (I think ~4500 for a WK2 v6 4x4 and ~4200 for the Challenger SE)
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  #15  
Old 01-31-2011, 10:35 AM
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Re: Overland's V6 Pentastar Engine?

Get the V8 hemi if you enjoy driving more as an enthusiast and for the fun factor and dont mind the slightly lower fuel economy and extra $1,995 initial purchase price. Its obviously still not a sports car but the power is great and the sound is excellent. Sounds like a lot more serious SUV from the second you press the start button. The back end looks a little cooler with the dual exhaust tips as well but thats just something minor that I like.

I have driven all three of the vehicles mentioned above. I had a newer RDX as a loaner when my TL was in the shop. The RDX feels like a lot smaller SUV (obviously because it is) and is much more nimble and a lot stiffer of a ride. I cant specifically remember how quick it was but I think it was pretty decent. I would say the RDX acceleration is somewhere inbetween the V6 and the V8 Grand Cherokee. Acura makes some pretty decent interiors but I think overall the Overland interior is much classier and the RDX being a little more on the sporty side.

All great cars but my vote goes to the V8 Overland. Hope this helps.

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  #16  
Old 01-31-2011, 11:49 AM
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Re: Overland's V6 Pentastar Engine?

We have about 10,000 miles on our v-6 overland. I would order the same engine again. I like the lower rpms cruising down the road compared to the v-8 and am quite satisfied with the performance. If speed and acceleration are important, I would go with a different vehicle. Cost and gas mileage are not important in my choosing the v-6. That said, I would be quite happy with the v-8 also. I have a duramax(v-8) in my pickup, but have inline 6 cylinders in our farm and semi tractors. I like the less whinny sound of 6's. Maybe because my ear is more used to the lower sound of a 6 is why I am more comfortable with it. A quite minor point to most, I am sure.
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  #17  
Old 01-31-2011, 12:11 PM
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Re: Overland's V6 Pentastar Engine?

There are a lot of good posts/info here! My father had an RDX for 3 years before trading up to the MDX a few months ago. Overall the RDX is probably a little zippier off the line due to considerably less weight but you really need to wind out the 4cyl turbo if you want to get moving.

One thing I have noticed is that the V6 WK2 is without a doubt limited by the drive by wire throttle system. Next time you test drive switch it into sport mode and try manually shifting through all the gears from a standstill... BIG difference. The engine has plenty of power - its the DBW and traction control that dumb things down. I would be very surprised if aftermarket tuners do not come out with a chip that eliminate these issues making it even more fun to drive.

I also have to disagree that the fuel economy of the V6 is only slightly lower than the hemi. The V8 mileage poll thread has an average of 11-13 mpg city driving and I am averaging 16mpg - That's over 30% more driving out of every tank!

It all comes down to what workes best for you! If you tow heavy loads frequently, go with the V8 - if not the V6 has been an excellent choice that I do not regret one bit.
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  #18  
Old 01-31-2011, 12:27 PM
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Re: Overland's V6 Pentastar Engine?

I have drove my V-6 for now about a 1000 miles here in Salt Lake City and driving up a few canyons to get to the mountains (Drove up to Park City and Sundance with no issues what so ever) and needless to say I am very impressed. This car gets up to speed in a timely manner (I feel that it is quicker than my 4.7 V8 WK I had previously). Overtaking cars going uphill was great and can do all this while getting 5-6mpg better than my previous car. I do not regret not getting the Hemi as I probably will not use it to tow anything and there is not any use for the larger engine. But I do look forward to getting my hands on a tune in the future to further improve my results.
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  #19  
Old 01-31-2011, 12:27 PM
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Re: Overland's V6 Pentastar Engine?

While I have the Hemi, I drove several 4x4 WK2 vehicles with the Pentastar V6 and liked the engine very much. However, I could not find V6 vehicles optioned the way I wanted so settled on the Hemi with no regrets; actually I love the Hemi and the fuel economy is acceptable.

The only detracting aspect of the new Pentastar V6 is that Chrysler attached it to rather tall gearing in the WK2 so you will not feel as much of a surge off the line as others noted. The power is definitely noticeable once underway. While I have not driven the Acura, I suspect the powerband feels similar between the two albeit the WK2 has a many more pounds to push. Those extra pounds provide the higher safety ratings, towing capability and ride comfort over Jeep's competition.

The best course of action is to thoroughly drive both.
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  #20  
Old 01-31-2011, 12:34 PM
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Re: Overland's V6 Pentastar Engine?

Ive had the pentastar for about 4 months and am pretty pleased. Sport mode makes it more fun to drive in stop and go traffic...highway driving is effortless. Im glad to have the jeep this week in Chicago..expecting up to 2 feet of snow.
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  #21  
Old 01-31-2011, 12:39 PM
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Re: Overland's V6 Pentastar Engine?

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Originally Posted by BadLuck View Post
Is there any reason for you that the shift points in sport mode are not good? Sport is set up with more aggressive shift points than auto. It also stays in a lower gear at a higher rpm when you are maintaining speed, so it won't have to downshift when you get on it.
Not really, except that I haven't used it as much after changing from the 20" wheels to 18" A/Ts. (not taking the corners as fast) Just a personal preference, nothing more.
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  #22  
Old 01-31-2011, 12:42 PM
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Re: Overland's V6 Pentastar Engine?

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Originally Posted by JTS97Z28 View Post
Get the V8 hemi if you enjoy driving more as an enthusiast ...
I enjoy driving as an enthusiast .... In my 1988 BMW M5, on a track -- with other skilled drivers who are concentrating on their driving and who react predictably. It's an exhilarating experience. I highly recommend it (look into your local sports car clubs.)

On the highway, whether I'm in my M5 or my JGC, I do my best to drive with what I term "active courtesy". I try to practice situational awareness, knowing who is around me and anticipating not only mistakes by them but the possibility of me helping them deal with others' mistakes.

The JGC handles very well for its size and center of gravity, but you can't repeal the laws of physics. If you must drive an SUV-like vehicle in a spirited fashion on asphalt, drop the $$ on a BMW X5 or Porsche Cayenne and sacrifice some off-road chops. But really, take the advice of others on this forum and get a sports car for that.
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  #23  
Old 01-31-2011, 01:39 PM
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Re: Overland's V6 Pentastar Engine?

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Originally Posted by SixZeroFour View Post
There are a lot of good posts/info here! My father had an RDX for 3 years before trading up to the MDX a few months ago. Overall the RDX is probably a little zippier off the line due to considerably less weight but you really need to wind out the 4cyl turbo if you want to get moving.

One thing I have noticed is that the V6 WK2 is without a doubt limited by the drive by wire throttle system. Next time you test drive switch it into sport mode and try manually shifting through all the gears from a standstill... BIG difference. The engine has plenty of power - its the DBW and traction control that dumb things down. I would be very surprised if aftermarket tuners do not come out with a chip that eliminate these issues making it even more fun to drive.

I also have to disagree that the fuel economy of the V6 is only slightly lower than the hemi. The V8 mileage poll thread has an average of 11-13 mpg city driving and I am averaging 16mpg - That's over 30% more driving out of every tank!

It all comes down to what workes best for you! If you tow heavy loads frequently, go with the V8 - if not the V6 has been an excellent choice that I do not regret one bit.
I have to emphasize this part. The little 3.6 has a bit of a jekyll and hyde personality when you let it rev a little in manual mode, I was pretty shocked the first time I did that.

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  #24  
Old 01-31-2011, 05:22 PM
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Re: Overland's V6 Pentastar Engine?

OP, as others note, it is doubtful that either the 4,470 lb. V6 or the 5,000 lb. V8 JGC will feel at all like your smaller & lighter 3,970 lb. RDX.

However, the MDX at 4,550 lbs with 300 hp 3.7 V6 is very comparable to the Pentastar JGC in terms of power to weight ratio, and you'll find both reasonably snappy vs. older generation engines. Note that my wife's '07 MDX is butt ugly and it has nowhere near the off road capabilities of the JGC (sorry honey).

Definitely go take both JGC's for a spin.
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