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  #49  
Old 07-29-2010, 02:22 AM
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Re: Test drove V-6 today - Not excited

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Originally Posted by 5.7Unlimited View Post
So in summary, the V6 is underpowered for the WK which they made EVEN heavyer for the new model. So nothing has changed...Plus they lowered the gear ratio on the Hemi to 3.47 (from 3.73) to neuter that a little bit. oh well, the new trans should solve that.

On a positive note, the 3.6 should at least be pretty decent in the Liberty.
I hope that the Liberty don't get it. I would be pissed


But really, its the transmission that holding it up. The V6 is great IMO and get good gas mileage but it really need 6 gears. That would make it better on power and gas.

I think that the new V6 was made just to justify taking out the 4.7L, replacing horsepower with horsepower. I always question any car that is TC/SC as far as longevity. Like the new 4 banger that Ford is putting out that Ford said would only last for about 150,000 miles. However, my moms turbo charged car is going to be a test car for me to change what I think about it.

I think they may have been better off putting a new 6 speed in their cars and using their 3.5L V6 that is being used in the LX platforms.
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  #50  
Old 07-29-2010, 05:27 AM
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Re: Test drove V-6 today - Not excited

that 3.5 v6 from the LX cars is a piece of shiat and way underpowered. Like I said above...YOU guys need to drive a 3.6...your ALL making assumptions
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  #51  
Old 07-29-2010, 10:01 AM
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Re: Test drove V-6 today - Not excited

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Originally Posted by Knightrider03m View Post
I always question any car that is TC/SC as far as longevity. Like the new 4 banger that Ford is putting out that Ford said would only last for about 150,000 miles. However, my moms turbo charged car is going to be a test car for me to change what I think about it.

I think they may have been better off putting a new 6 speed in their cars and using their 3.5L V6 that is being used in the LX platforms.
I agree on the forced induction. If you take a small engine and beat the tar out of it, it just won't last as long, period. You'll be blowing head gaskets, wearing out piston rings, and so on. You get really nice power for a given displacement and better efficiency, but there's just no way a small engine all wrung out will last longer than a larger engine that isn't working all that hard. Of course, turbodiesels are an exception, but they're also tremendously overbuilt to handle the load.

As for the transmission vs. Pentastar, I'll take the new engine, thanks. T'were it a 4 speed auto, you'd have a point, but the new engine is nice and tractable. Another couple cogs wouldn't hurt, but the current V-6 and W5A580 transmission is not a bad combo.
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Old 07-29-2010, 10:59 AM
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Re: Test drove V-6 today - Not excited

As someone who flies 4 and 6 cylinder airplanes I can tell you that is the truth. Cars dont have an recommended overhaul time as airplanes do. But then again airplane engine are routinely run at 75-80% constant power for hours at a time. Thats why after about 2000 hours or so manufacturers generally call for an overhaul. Its expensive but has to be done.

I think its crazy that we are going to head that direction on cars. Think about when that last time or if ever you have run your engine at 75-80% of max rpm for even 10 minutes. It doesnt happen but apparently that is the equivalent of what they are trying to do with the new engines.
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  #53  
Old 07-29-2010, 11:05 AM
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Re: Test drove V-6 today - Not excited

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Originally Posted by Scottina06 View Post
that 3.6 v6 from the LX cars is a piece of shiat and way underpowered. Like I said above...YOU guys need to drive a 3.6...your ALL making assumptions
When mated with the 4 speed its a POS. Back when Chrysler was putting the 5 speed in the 3.5Ls, the engine was more than capable to move the Charger/300. I notice that when I drove a 06 Charger than turned around and drove a 07 300.
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  #54  
Old 07-29-2010, 11:18 AM
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Re: Test drove V-6 today - Not excited

It seems like some are comparing the Pentastar 3.6L V-6 to other V-6s in current and recent past production vehicles (or I'm just getting confused by people bringing up the older engines; I would rule that out). It's time to quit those comparisons.

The Pentastar 3.6 in the WK2 is NOT currently used in any other products. LX cars or whatever else, if it is not a 2011 Grand Cherokee or a development test mule (which I'm betting nobody here has driven), it isn't the Pentastar.

Comparing the V-6 engines used in other Chrysler products to the one in the new Grand Cherokee is irrelevant and a waste of time. It's not only NOT the same engine, it isn't even related; the Pentastar is a clean sheet design.
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Old 07-29-2010, 11:37 AM
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Re: Test drove V-6 today - Not excited

The new 3.6L will replace most, if not all other V6 engines. That is including the LX platforms, Wrangler, Ram, etc. The 2011 Chargers/300 will get this new engine along with the 5.7L and the new 6.4L(?)

My biggest compliant is and always was that Chrysler spending money on the wrong things. This is why Chrysler has been number 3. I would like to see Chrysler be on par with Ford (GM for that matter) as far as new technology. A transmission with more gears make the car smoother, more fuel efficient, and give it more useful power. Work on getting a transmission then work on the engine. Ford started to do that years ago and GM is just now coming around to it, why not Chrysler?
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  #56  
Old 07-29-2010, 01:48 PM
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Re: Test drove V-6 today - Not excited

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Originally Posted by Knightrider03m View Post
My biggest compliant is and always was that Chrysler spending money on the wrong things. This is why Chrysler has been number 3. I would like to see Chrysler be on par with Ford (GM for that matter) as far as new technology. A transmission with more gears make the car smoother, more fuel efficient, and give it more useful power. Work on getting a transmission then work on the engine. Ford started to do that years ago and GM is just now coming around to it, why not Chrysler?
See, I disagree. I'd rather give up a couple cogs in the gearbox for a modern engine that is smooth, tractable, and efficient at delivering power than hook up a new whiz-bang transmission to the same old gutless engines that were never that great at reliability, efficiency, and seem to make more fan noise than horsepower (even when you flog it, which you have to do since low RPM power doesn't exist).

Ultimately, it was a variety of things that almost killed Chrysler (again). Their interiors were from 1983. The overall chassis were uninspired (with very few exceptions). That stopped more people from buying than the powertrains, which did indeed need major work, but the transmission is usually way down the list. Sure, they needed to make them more reliable on the higher end (which they've been doing... gradually), but there's just no point to a great transmission when the rest of the vehicle is so bad. Look at the Sebring; the transmission was the least of the car's worries. The interior was garbage, engines gutless, handling wallowy. Even mounting a BMW dual clutch gearbox to it wouldn't save that irredeemable and unrepentant turd of a car.

With the new GC, everybody would notice a mediocre engine. The transmissions are certainly acceptable, if not world-leading. They had bigger fish to fry- only when the rest of the vehicle is excellent is it worth spending the time taking transmissions from "acceptable" to "world beating." Now, if the 545RFE (Hemi) and W5A580 (Pentastar) were absolute junk, then I'd be right there with you. But they do not seem to be. They're fine for now, even if they are the next place where development is needed. But if the new WK platform and Pentastar engines weren't worth squat, we wouldn't be discussing transmissions.
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Old 07-29-2010, 11:28 PM
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Re: Test drove V-6 today - Not excited

Allow me to add my two cents. I too test drove the V-6 today right after test driving a 2010 4Runner and a 2010 VW toureag [both with V-6s]. The W2 is a better vehicle in all ways except for acceleration. Unfortunately, the W2 had noticeably weaker low end and top end power. I don't know if it is the tranny, gearing, weight, or overrated HP and torque [I think that both the Hemi and V-6 are not as powerful as Chrysler claims]. If you live in a higher elevation or tow anything, the V-6 won't cut it.
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Old 07-30-2010, 05:56 AM
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Re: Test drove V-6 today - Not excited

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Originally Posted by Technosavant View Post
I agree on the forced induction. If you take a small engine and beat the tar out of it, it just won't last as long, period. You'll be blowing head gaskets, wearing out piston rings, and so on. You get really nice power for a given displacement and better efficiency, but there's just no way a small engine all wrung out will last longer than a larger engine that isn't working all that hard. Of course, turbodiesels are an exception, but they're also tremendously overbuilt to handle the load.
History has proven that smaller engines designed for forced induction can last just as long as conventional, naturally aspirated engines. Many of these engines are also "overbuilt" to handle boost, just like turbodiesel engines. If you've ever looked closely at engine design, you'll already know that turbo engines have the most robust headgasket design. They often have all forged internals to cope with the high loads that come with boost pressures. They are designed with low compression to allow for high boost without blowing up.

And if you think about it, even the most high-strung little turbo engine doesn't really have such an abusive life. It spends very little time under high boost pressures. High boost pressure really only come under hard acceleration, and we all know that any automobile engine spends very little time under hard acceleration. Cruising, decelerating, and idling take up far more time of an average engine's life. Now if you're talking about marine engines, that's a different story. Those are often wide open throttle for extended periods of time.
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Old 07-30-2010, 06:41 AM
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Re: Test drove V-6 today - Not excited

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Originally Posted by Scottina06 View Post
that 3.5 v6 from the LX cars is a piece of shiat and way underpowered. Like I said above...YOU guys need to drive a 3.6...your ALL making assumptions
I've driven it and to me it's just adequate. The trucks just too heavy for the 6.
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Old 07-30-2010, 07:56 PM
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Re: Test drove V-6 today - Not excited

I test Drove both and ordered the 6. I figure it will save me about 6k (including cost of hemi) over five years.

The difference in drive was noticeable under heavy load, but I went from the Hemi to the v6 and I was not terribly underwhelmed. In fact I was pleasantly surprised at how competent it felt... and that was here in the mountains. I certainly didn't feel like I was compromising, and that is coming out of a X5 4.8
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