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  #37  
Old 01-26-2012, 02:11 PM
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Re: Hemi questions

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Originally Posted by comnjeep View Post
Get the V8 for towing. It does sound like a Diesel, I assume it is because of the aluminum transmits internal engine sounds differently than the older iron blocks. GM's LS7 "ticks" too, people say it's the injectors. It's normal nowadays to hear it. I'm getting used to it.

As for the forced induction issue, I am not too excited about it. Too many parts for a couple extra MPG's. Reports of electrical issues with the fuel pumps worried me on the BMW. They are high pressure and needed for DI engines. I know it makes sense and is the latest.. I also cannot accept that the X5 turbo 6 is as quick as the 5.7 wk2. I tested the BMW. Nice car, but now that I'm done breaking in my jeep, it seems much quicker. Terrible mileage, but I have no regrets.
The fuel pump on my 335xi has been replaced already for that issue, failing under load at high boost levels. Same engine, fuel pump as in the x5.
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  #38  
Old 01-26-2012, 02:15 PM
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Re: Hemi questions

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Originally Posted by ericwp View Post
The fuel pump on my 335xi has been replaced already for that issue, failing under load at high boost levels. Same engine, fuel pump as in the x5.
did you take part in the class-action for the HPFP? i am getting $50 since it was replaced only once for now 2009 335i m-sport here
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  #39  
Old 01-26-2012, 06:58 PM
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Re: Hemi questions

This thread is funny

My WK2 is at 10.7 MPG all city right now. I rarely get about 30mph until I have to stop again. I could care less about gas mileage though, I would rather have the power.

How can anyone think the WK2 is loud stock? I can hear my neighbor's stock f150 over my Jeep when I am standing in my driveway, his is across the street. It's not even loud when you step on it, it's kinda dissapointing IMO. I bought a Hemi to be loud, not quiet. I can't wait for an exhaust I actually like and the tuner to come out.
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  #40  
Old 01-26-2012, 10:44 PM
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Re: Hemi questions

^^ That's pretty much how I feel (it's not loud stock) except that I would not want a loud car to drive daily, as would 99% of those who buy cars. I guess I'm old, but what is the point of hearing your exhaust on a SUV, hemi or not? There is little power to be gained, and it's just annoying on the hwy, talking to someone in the car, on the phone, or listening to radio or music. Quiet power is so much more civilized. To each his own. The hemi does have a weird diesel sound at idle... I agree with the OP on that, but I don't dislike it either.
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  #41  
Old 01-27-2012, 10:25 PM
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Re: Hemi questions

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Originally Posted by tuner088 View Post
Hey guys, I'm looking to pick up a '12 JGC V8 and this being my 1st Hemi if I do pick it up, I have a couple of questions.

1. I noticed that the Hemi is a bit loud while idling and definitely under acceleration, is there anyway to tone it down a bit short of changing the exhaust? I'm doing a little bit of an extended test drive with 1 right now and I can remote start it from my house and I can hear the jeep idling all the way in my bedroom at the back of my house upstairs with the windows closed.

2. Currently I'm getting a little over 12 mp in the city, should I expect more after a few tanks of gas, or should I look forward to seeing that number stay there? I don't really drive fast, and I don't have too much stop and go traffic. Right now I'm fighting to keep the ECO light on, but so far I'm starting to feel like the whole MDS thing is more of a fluke.

Thank for any info.
Dude...really? Too loud...bone stock is too loud? One of the first things I could recall is how quiet this HEMI was...I was expecting more of a growl but when I got mine the first thing I noticed it how smooth and quiet it is when driving...especially when I get on it...yeah you hear it a little but you dont get that throaty growl, not even close.

And to your second point...WOW...cant keep the ECO light on? I guarantee you dont have a heavier foot than I do...and I get 16-Mpg! Thats right, I get the same gas mileage that I got in my crappy 6-cylinder Jeep Cherokee I owned before this one. MDS is no joke buddy, trust me it helps saving gas, for this HEMI to out perform my old 2004 JGC is a miracle to say the least. And staying in ECO is extremely easy...just mash the gas until you are happy with your speed and literally just freeze your foot and let off the pressure...you will stay in ECO mode.

Here is my best tip for you to get great gas mileage and still be able to get on it every once and a while and still have fun. On the EVIC, dont display your speedometer...go up one setting until you see "fuel economy"...display that setting at all times, its like a game!! It has a bar which displays your fuel economy in real time according to how you drive...the bar has an indicator triangle to display your "average"...as you drive the speed you like, let up slight pressure on the pedal and you should see your bar light up well beyond your average...the longer you can drive and keep that bar lite up above the 20 mark, you will gradually increase your MPG. Trust me, its fun and it will help you to feather the pedal more...once you learn how to drive it and get your average up to around 15-16mpg...then every once in a while on the interstate you can open this beast up and it wont kill your average very much....but you can just drive normal again and get it back up....HAVE FUN!!!
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  #42  
Old 01-29-2012, 07:38 PM
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Re: Hemi questions

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Originally Posted by Cherokee4X4 View Post
Dude...really? Too loud...bone stock is too loud? One of the first things I could recall is how quiet this HEMI was...I was expecting more of a growl but when I got mine the first thing I noticed it how smooth and quiet it is when driving...especially when I get on it...yeah you hear it a little but you dont get that throaty growl, not even close.

And to your second point...WOW...cant keep the ECO light on? I guarantee you dont have a heavier foot than I do...and I get 16-Mpg! Thats right, I get the same gas mileage that I got in my crappy 6-cylinder Jeep Cherokee I owned before this one. MDS is no joke buddy, trust me it helps saving gas, for this HEMI to out perform my old 2004 JGC is a miracle to say the least. And staying in ECO is extremely easy...just mash the gas until you are happy with your speed and literally just freeze your foot and let off the pressure...you will stay in ECO mode.

Here is my best tip for you to get great gas mileage and still be able to get on it every once and a while and still have fun. On the EVIC, dont display your speedometer...go up one setting until you see "fuel economy"...display that setting at all times, its like a game!! It has a bar which displays your fuel economy in real time according to how you drive...the bar has an indicator triangle to display your "average"...as you drive the speed you like, let up slight pressure on the pedal and you should see your bar light up well beyond your average...the longer you can drive and keep that bar lite up above the 20 mark, you will gradually increase your MPG. Trust me, its fun and it will help you to feather the pedal more...once you learn how to drive it and get your average up to around 15-16mpg...then every once in a while on the interstate you can open this beast up and it wont kill your average very much....but you can just drive normal again and get it back up....HAVE FUN!!!
I think you're misreading the post a lil. I didn't say it was "too loud" I just said it seems a bit loud (from my new to HEMI perspective). As far as your second post, I said I can keep the ECO light on, not "can't", but the AVG isn't budging at all. I know it's new and still not broken in, so I was just wondering what to expect once it's broken in. I still haven't decided on keeping it or not. My test drive is up, so I'm at the decision part.
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  #43  
Old 01-30-2012, 06:10 AM
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Re: Hemi questions

Jeep tuned the exhaust and intake to provide the ethusiast a bit of engine sound, unlike some other manuafactures that squash any noise. I think its a good compromise.

It takes awhile to budge the average mpg displayed as the computer averages over several hunderd miles regardless of reset. The instant mpg meter in the EVIC (available int the fuel mileage view) will change quickly and ,may be more useful for your purpose.
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  #44  
Old 01-30-2012, 08:13 AM
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Re: Hemi questions

Despite the cold weather here in central Connecticut, I've been able to keep my 2012 Overland 4x4 HEMI in the 14 to 15 mpg range during local driving by driving very gently. I have about 4,000 miles on it. When I first got it, I got as low as 12.5 mpg during local driving. So, yes, my mileage has improved as the car has "broken in" from new.
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  #45  
Old 02-04-2012, 10:57 AM
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Just to avoid slams, I will start with, "I really love my v8 overland!" my wife asked me, after I averaged 11mpg for the first 1100 miles, do I wish I got the v6.

I told her no, but I must admit I am wondering if I made a mistake.

11 mpg with a feature soft foot in urban driving is terrible. When I drive it with ANY authority I average about 9 mpg. The Eco light stays on most of the time as I do consider it a game to keep it on.

Hwy mpg is good,

For you guys who say you average 16 around town, either you are confused or my jeep is defective. There is no way you an drive a are softer than I am right one.

Love the overland, otherwise!
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  #46  
Old 02-04-2012, 12:16 PM
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Re: Hemi questions

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Originally Posted by aimpulsive View Post
Just to avoid slams, I will start with, "I really love my v8 overland!" my wife asked me, after I averaged 11mpg for the first 1100 miles, do I wish I got the v6.

I told her no, but I must admit I am wondering if I made a mistake.

11 mpg with a feature soft foot in urban driving is terrible. When I drive it with ANY authority I average about 9 mpg. The Eco light stays on most of the time as I do consider it a game to keep it on.

Hwy mpg is good,

For you guys who say you average 16 around town, either you are confused or my jeep is defective. There is no way you an drive a are softer than I am right one.

Love the overland, otherwise!
That may depend on people's definition of "around town." I filled up today and hand calculated 15.8 and that was with no interstate driving. That is a mix of some stop and go and suburban roads with mixes of 45-55 mph stretches with not many stop lights.
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  #47  
Old 02-04-2012, 01:15 PM
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Yes, that is correct. Most of my around town is 30 to 35 stop and go traffic...sometimes even slower. Very little 50 to 55 in my town unless I am heading out to hunt.
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  #48  
Old 02-04-2012, 01:17 PM
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Re: Hemi questions

Mine has aroung 1500 miles on it.. still breaking in... getting 14.7 mpg around town and the first road trip brought 19 mpg..
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