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Old 01-02-2011, 11:31 PM   #31
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Did you guys know this is a jeep forum? Jeeps arent fast! so why talk about which one is faster. they are both slow so who cares. my girlfriends altima will beat all but one of you guys. you dont haul a** on giant rocks do you?

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Old 01-03-2011, 01:00 AM   #32
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Most of us don't buy the JK for performance. My JKU with 513s and 35s has all the power I need and is just plain fun to drive.
I agree with that, but we still need some more power, let see the FJ for example, it got both, power + fun. Of course its not as fun as the wrangler but its still on the same line with wranglers.

The first time i drove my jk, i remember that i was wondering if it was 4 cylnders or 6 !! allthough i knew there is no 4 cylnders jk, what i mean is the car is really underpowered wether we like it or not we have to admit that !!

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Old 01-03-2011, 01:50 AM   #33
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Maybe a bit underpower on the road, but by no means will it not get you from point A to point B. I drive a 4cyl tj, with 31's, no lift. I top out at around 75-80, but i have no problems driving the thing. Its all about planning ahead on when you want to pass lol
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Old 01-03-2011, 04:13 AM   #34
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You'll honestly make it peppier with a Superchip and gears. The chip eliminates the throttle lag that makes it seem so slow in the first place while optimizing the shiftpoints and tune; the gears give it a mechanical advantage.
I've got 4.56 gears and the Flashpaq and it's a different machine. Snaps your head back when you hit the skinny peddle now.
It's not fast by any means but it's quicker. Fast and quick mean different things.
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Old 01-03-2011, 04:48 AM   #35
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You'll honestly make it peppier with a Superchip and gears. The chip eliminates the throttle lag that makes it seem so slow in the first place while optimizing the shiftpoints and tune; the gears give it a mechanical advantage.
I've got 4.56 gears and the Flashpaq and it's a different machine. Snaps your head back when you hit the skinny peddle now.
It's not fast by any means but it's quicker. Fast and quick mean different things.
Yep. Thats right, but u should not forget that when you re-gear a vehicle you are changing the rpm of the engine for each gear which means in the long run more fuel consumption.
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Old 01-03-2011, 05:25 AM   #36
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...which means in the long run more fuel consumption.
I plan to use up every last drop of fossil fuel on the planet before I die.

Let the next generation drive a Leaf to work.
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Old 01-03-2011, 07:41 AM   #37
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not everyone buys a jeep to put it in the rocks or the mud. some people really just like the look and open air that a jeep offers. yes, given the chance and time off work, i would love to have a jeep that could climb anything or go thru anything. but, because of limited amounts of free time and the fact that where i live you have to travel a few hours just to get to rocks, it is mostly going to be a street jeep. in my case, it will be mainly form over function. its not that power is such a biggggg thing for me, but it does have its place. i am sure that once your off road, it has plenty of pull and gearing to get me thru and give me a lot of fun. but seeing that those times would happen less than say just going to the store or out to dinner, driving it on the road needs to be "fun". also, this would mainly be the better halfs vehicle. we are trading her toyota 4 runner in on it, or something. she test drove it also and was kinda put off by the lack of power. she asked me last night if i thought maybe the park brake was semi-activate. hell, i hope it was. we werent looking for fast, just when you give it gas to get in traffic, quicker would help

a programmer and cai are easy enough and would probably ahppen. i have seen the supercharger and that would be a great option down the road a bit. the hemi swap would be a little much for me, unless i just pulled the one from my truck.

listen, im not stepping on you true jeeps toes. just trying to find out how i could have both the jeep and better throttle response. not high speeds, just snappier
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Old 01-03-2011, 08:03 AM   #38
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It sounds like the Jeep Wrangler may not be the vehicle for you.
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Old 01-03-2011, 08:18 AM   #39
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Old 01-03-2011, 08:32 AM   #40
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Try test driving a variety of jeeps. Maybe something just wasn't right on that one... Drive some tj's and some 2 and 4 door jks.
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Old 01-03-2011, 08:42 AM   #41
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Hemi
if i could i would, would be awsome. we are going to look around some more.
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Old 01-03-2011, 09:04 AM   #42
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we were thinking about getting a new 4 dr and went for a test drive. its been awhile sinse i had a jeep and the last one i have ever been in was a friends tj from a few years back and it was readily good on acceleration. the new one was horrible. what are you guys doing to make it more powerful? does a chip and cold air make a great difference? still havent canceled it out, but the lack in power is scaring me away from it. i love the jeep though.

To answer your question, as other said above, you just need to stomp on it a little and I think you will find it has some decent get up and go. I came from a sub 5 second sports car to this and I am fine with it. Sure it's not fast but just step on it and you'll have fun, trust me. I had a blast on my short commute this morning.
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Old 01-03-2011, 09:32 AM   #43
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cool, thanks guys
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Old 01-03-2011, 10:01 AM   #44
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I sold my 98 tj to get a 2011 jk 2 door. I can't imagine why anyone would think the heavier 3.8L is faster/peppier than the lighter 4.0L.
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Old 01-03-2011, 10:09 AM   #45
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I just put the Ripp supercharger/intercooler and headers in mine and absolutely love it! Too new to give to many details and haven't had much drive time yet, but added about 100 hp and more than that in torgue too!
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Old 01-03-2011, 10:12 AM   #46
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I plan to use up every last drop of fossil fuel on the planet before I die.

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Old 01-03-2011, 10:14 AM   #47
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I just put the Ripp supercharger/intercooler and headers in mine and absolutely love it! Too new to give to many details and haven't had much drive time yet, but added about 100 hp and more than that in torgue too!
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Old 01-03-2011, 10:28 AM   #48
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This may sound a little odd, but you get used to its lack of performance and begin to think it's just fine. I bought mine to build for offroading/DD. I didn't need it, but wanted to build a Rubicon before I went on to another life.

At first, it took some getting used to. The wind likes to throw it around and hills were a challenge. Then came the lift, heavy bumpers, 513 gears, Superchip and a lot more. Everything had an impact on mileage and performance. However at about 7500 miles it seemed to get better. The mpg picked up a little and it seemed a little peppier. I replaced the MTR w/k tires with KM2s and it was like a boost of power. They roll much easier. Now, with 9500 miles on it, it gets over 19 mpg on a trip @62 mph and has better performance than when it was new. I'm certain that if I removed the 500#s of bumpers, tire carrier and winch, it would be over 20 mpg and even better performance. Part of this improvement is getting used to the JK and learning how to get the most out of it.

My point is, drive the JKU for awhile and ignore the lack of power. If you like the experience, as most Wrangler owners do, then pick out the one that has all of the options your wife will want, buy it and don't look back. A superchip will give it a slight boost and firm up the shifting. I can assure you that if it passes the first test, ( the one ignoring the power), you and your wife will grow to love the Jeep experience and all the nice people that will wave to you on the road. The performance will get better and your power requirement will go down. When the two meet, you will have this silly grin on your face everytime you drive it. This month, I will be 2 years away from 70 years old and it is the most fun rig I have ever owned.

Good Luck
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Old 01-03-2011, 11:17 AM   #49
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I sold my 98 tj to get a 2011 jk 2 door. I can't imagine why anyone would think the heavier 3.8L is faster/peppier than the lighter 4.0L.
They think it's true because it is, in fact, true. Don't get me wrong, I love the TJ. I'm a big fan of almost every Jeep I see on the road. And I know full well that the present JK is no rocket ship. However . . . .

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the 3.8 tests at 3 tenths of a second faster to 60 (which would be a good half a second in a 1/4 mile) than the 4.0 in a 2 door vs. 2 door test . . . .
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dear lord. the jk has been proven faster than the tj, many times.
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i've posted links to the same site that tested both tj and jk jeeps. search my posts and you'll find it. from early november i think.
I don't want to steal Sinister's thunder here, but the guy's fingers have got to be getting sore from having to post on this issue so often.

But, by the way, congrats on the new Jeep!
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Old 01-03-2011, 02:26 PM   #50
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My 2011 JK 4dr w/auto transmission accelerates very well. I do have an issue with the O/D kicking in around 40-45.... That kills the torque. If it bothers me too much, I reach down and shut it off.... No it's not as fast as the new Camaro, but it certains performs well enough for me.... When I look down, I'm usually 5-10 mph over the speed limit....
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Old 01-03-2011, 06:35 PM   #51
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I guess it's the magic of repeating something over and over then.

The Results are In........
"The results are in.. I’ll keep this as short and sweet as I can..
Test and configurations were made to my 2007 Jeep Wrangler 4D Rubicon..
1st. Dyno run
Bone Stock = 180.7hp / 215.8tq"

Jeep Dyno Test Unichip Airaid - Jeep Wrangler

160hp

ect ect..

Like I said before.

More engine, less weight is faster peppier whatever. there's no way around it.

there's no magic that makes the opposite true.
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Old 01-03-2011, 07:06 PM   #52
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Just got my 2011 Rubi Unlimited, tho I will not be winning any races I know that my Jeep is still fast enough to get me any ticket I want and will chirp the BFG's quite nicely.
It's a Jeep not a __________ (fill in sports car of choice)
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Old 01-03-2011, 07:39 PM   #53
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Originally Posted by captgentry
I guess it's the magic of repeating something over and over then.

The Results are In........
"The results are in.. I’ll keep this as short and sweet as I can..
Test and configurations were made to my 2007 Jeep Wrangler 4D Rubicon..
1st. Dyno run
Bone Stock = 180.7hp / 215.8tq"

Jeep Dyno Test Unichip Airaid - Jeep Wrangler

160hp

ect ect..

Like I said before.

More engine, less weight is faster peppier whatever. there's no way around it.

there's no magic that makes the opposite true.
You're going to have to help me out here, because I'm a noob on this kind of stuff, but two disparate dyno tests on JKs prove your point how exactly?
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Old 01-03-2011, 07:57 PM   #54
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Right before I bought mine I picked up a 2004 BMW M3 for those days I needed more speed. I'm lucky to have the best off two worlds. Still drive the Jeep first. Maybe I'm getting old.
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Old 01-03-2011, 08:15 PM   #55
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Rhino, I'm in the situation (being far from the trails) but I do live in a highly poped area, washington dc and a lot of people over here are...how do you say, road friendly. I came from a lighter faster modified box on wheels and I know the pain of merging with a slower box, however timing and shifting just right has gotten me the same merge time I used to have, plus people tend to respect a giant and give you some elbow room.
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Old 01-03-2011, 08:51 PM   #56
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It just means the only dyno results that matters are the before and after on one car.

I've had 12 years riding around in a stock 4.0 and 1000 miles in the 2011 and the idea that the 3.8 has more power or HP or torque seems really silly to me.

The in line 6 is a great engine. You won't find any pullable at the junkyards. I have a feeling you can find the 3.8.

That says more about the engine than anything else.
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Old 01-03-2011, 08:54 PM   #57
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Oh yea.... The dyno results I quoted were also far below what crysler says the jk has.

So, there's that.
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Old 01-03-2011, 09:04 PM   #58
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It just means the only dyno results that matters are the before and after on one car.

I've had 12 years riding around in a stock 4.0 and 1000 miles in the 2011 and the idea that the 3.8 has more power or HP or torque seems really silly to me.

The in line 6 is a great engine. You won't find any pullable at the junkyards. I have a feeling you can find the 3.8.

That says more about the engine than anything else.
it goes hand-in-hand...you'll find plenty of 4.0's for sale on the forums and you won't find 3.8's. the one's(3.8) you find @ scrapyards will be from Mini Vans. I check the local scrapyards on a weekly basis for jk's and have yet to find one, however they have a few yj's and tj's. Jeeps overall are pretty tough to find @ scrapyards period.
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Old 01-03-2011, 09:04 PM   #59
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either way it means nothing....drive your jeep and enjoy it
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Old 01-03-2011, 09:12 PM   #60
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You may not find a jk, but you'll find the engine. You can't find a crankable 4.0 ever. Someone's always pulled them.

That says a lot about the engine.

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