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Old 04-20-2010, 08:43 PM   #1
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the 3.8 is not so bad

Man....I see an aweful lot of complaints about this 3.8L. Granted, it's not a Hemi, but I think it's fine. I have a 2 door and I have the soft top on right now. I also have the auto with the 3.73 rear end. Mine pulls pretty well from a stoplight and I pulled onto the highway today and was doing 80 before I realized it. I've also been averaging 18mpg around town with only 1500 miles on the odo. How fast do you people want to go in this thing, anyway? I used to drive my BMW over 100mph all the time. I wouldn't want to drive my Jeep that fast though. God forbid I had to make some kind of evasive maneuver at that speed....I'd be in trouble.

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Old 04-20-2010, 08:46 PM   #2
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I agree with you. Don't ever tell anyone I just agreed with a Red Sux fan or I'll have to kill you.

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Old 04-20-2010, 08:48 PM   #3
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Ok. It'll be our little secret. I won't tell that I've been supported by a Skankee fan either.
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Old 04-20-2010, 08:48 PM   #4
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Deal!
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Old 04-21-2010, 09:02 AM   #5
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...amen, i have a manual with tow package gears and i think the motor is perfect for this beast.

...any bigger engine and i could see things getting squirrely in a hurry.

...4-door may be another story though.

...my manual shift points seem to be right around 2000 rpms, up to 3000 with zombies up my tail pipe.

...getting 19.4 mpg with less than a 1000 miles on him(tonto).

...that may change a little when the 265/70r17 bfg km2's come in tomorrow.


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Old 04-21-2010, 10:10 AM   #6
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I agree as well. If I wanted fast I would have purchased fast. Everyone that buys a Jeep knows going in it's not built for speed. Thread after thread complaining about no speed and crappy mileage. Hell you bought it so enjoy it and stop complaining. I have a 6 speed MT and it is fine. I was cruising at 80 going home last night and have no problems at all with the power.
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Old 04-21-2010, 11:02 AM   #7
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I agree to.The power is more than enough for my needs.
It's a jeep not a sports car. I had fast cars all my life so
i think the jeep is just fine with the power it has. Too
much power can be bad for a jeep thats not known for its
handling. A quick downshift gives me the power i need
when i need it.
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Old 04-21-2010, 02:05 PM   #8
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i have an unlimited with 3:73 gears that currently has the hard top on. the 3.8l engine is way under sized for the 4dr... or should i say not enough power. the 3.8l engine in a 2dr jk would be fine i think. but the 4dr shoulda came with a v8 or a more powerful v6
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Old 04-21-2010, 06:12 PM   #9
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Originally Posted by guygettnby View Post
i have an unlimited with 3:73 gears that currently has the hard top on. the 3.8l engine is way under sized for the 4dr... or should i say not enough power. the 3.8l engine in a 2dr jk would be fine i think. but the 4dr shoulda came with a v8 or a more powerful v6
Yes you are probably right but I wonder how much re-engineering would be required with more power. I can cruise control with mine at 80 and if the wind is against me it kicks out of O/D (it's auto) but I normally run at 75 cruise on the freeways. If traffic slows I have learned to push the O/D button off otherwise when traffic speeds up I'm left in a trail of smoke. There seems to be enough power for me this way and mileage runs between 19/20. When I leave the valley and start the climb (about 50 miles to 5,000 ft) the mileage drops to 17 and I don't use the O/D at all. On a long 8 degree grade I will have to drop down to second gear to keep speed.

Now when I get it on trail or in the snow is where it shines. If I had a complaint it would only be the turning radius. It won't turn like a 2-dr so I bought a nice 98TJ for the one-way roads that don't have the the space needed to turn a 4-dr around.
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Old 04-21-2010, 06:53 PM   #10
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I've got 09 rubicon 2 door It moves just fine with 305-70/R17 on it
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Old 04-21-2010, 07:04 PM   #11
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So far I've had mine up to 110. Fairly stable ride until I hit that squirrel and damned near lost it.
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Old 04-22-2010, 03:58 AM   #12
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The 3.8 is fine for what I do. Lots quicker than my old J-10 pick up

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Old 04-22-2010, 05:10 AM   #13
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Agreed!!!

I was just thinking about this yesterday.....I can't understand why so many people complain about the lack of power of the 3.8L

I have absolutely no problem merging on to a highway, passing, etc....

Yes it does react differently to accelerating quickly than you're regular car does, but....I have no complaints at all.

It actually has made me a bit more of a laid back driver, which is good in NYC sometimes!
It's too easy to be an overly aggressive driver in this town!
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Old 04-22-2010, 07:20 AM   #14
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i have no major complaints myself and i have a 33k mile 07 unlimited with auto... it goes when i want it to, i dont feel like i lost alot of power going from a 03 tacoma v6 to the jeep v6, i have seen where it has trouble some steep hills but other than that its good, getting 16-17 mpg here in east TN
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Old 04-22-2010, 07:25 AM   #15
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for all the people who have agreed to this thread and think the 3.8l is plenty of power... how many of you have a 2dr and how many have a 4dr.

its sad when i have to floor the peddle in order to pass somebody. it is also sad like mentioned above that if the wind blows at all in the direction your traveling that the jeep has to shift outa OD in order to keep the same speed. IDK how anybody could be happy with the lack of power this crappy engine puts out. i guess it makes a difference where you live and what kinda driving you do.
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Old 04-22-2010, 08:05 AM   #16
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Originally Posted by guygettnby View Post
for all the people who have agreed to this thread and think the 3.8l is plenty of power... how many of you have a 2dr and how many have a 4dr.

its sad when i have to floor the peddle in order to pass somebody. it is also sad like mentioned above that if the wind blows at all in the direction your traveling that the jeep has to shift outa OD in order to keep the same speed. IDK how anybody could be happy with the lack of power this crappy engine puts out. i guess it makes a difference where you live and what kinda driving you do.
Two door, manual shift. As stated, enough power for me. Same engine is in my 99 AWD T&C, and seems quicker even with that heavier vehicle.

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Old 04-22-2010, 09:26 AM   #17
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does the T&C have the same tranny? that might be why.
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Old 04-22-2010, 09:38 AM   #18
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i guess it makes a difference where you live and what kinda driving you do.
EXACTLY! I drive like an ole sodbuster...Guess that's why I fit in around here!
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Old 04-22-2010, 09:53 AM   #19
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Originally Posted by guygettnby View Post
for all the people who have agreed to this thread and think the 3.8l is plenty of power... how many of you have a 2dr and how many have a 4dr.

its sad when i have to floor the peddle in order to pass somebody. it is also sad like mentioned above that if the wind blows at all in the direction your traveling that the jeep has to shift outa OD in order to keep the same speed. IDK how anybody could be happy with the lack of power this crappy engine puts out. i guess it makes a difference where you live and what kinda driving you do.
Exactly what I hear, again and again. JKU's with hard tops & automatic trannys seem to be the dogs of the bunch... Maybe CD should have explored an optional OEM supercharger or a V-8 for the hardtop JKU.

On that note, my 2dr 6spd w/ soft top hauls butt.
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Old 04-22-2010, 10:14 AM   #20
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It does take some getting used to. I traded in a 2006 Dodge Magnum R/T with a HEMI for my JK. The salesman (my friend) told me to remember that with this vehicle I have more time than money so if I'm in a hurry, then take a different car. He also drives a JK.
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Old 04-22-2010, 10:18 AM   #21
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Quote:
Originally Posted by guygettnby View Post
for all the people who have agreed to this thread and think the 3.8l is plenty of power... how many of you have a 2dr and how many have a 4dr.

its sad when i have to floor the peddle in order to pass somebody. it is also sad like mentioned above that if the wind blows at all in the direction your traveling that the jeep has to shift outa OD in order to keep the same speed. IDK how anybody could be happy with the lack of power this crappy engine puts out. i guess it makes a difference where you live and what kinda driving you do.
I've got a 4-dr. auto. I do not "floor the pedal" to get around somebody. I do get out of O/D because it makes a big difference in power at speeds when you need to get around.

What do you think the power should be? If you dropped a V-8 into one of these then what happens? Is it overpowered for the transmission, drive-lines and differential? I don't know. Of course with a Jeep we're always doing something to them because it's a Jeep! You have enough power to twist drive shafts and axles in lo-range but the Jeep was made for off-road. A Jeep does not equate to "power AND speed". A Caddie, Hemi, Lexie and others will give you both. What do you think?
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Old 04-22-2010, 10:49 AM   #22
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What do you think the power should be? If you dropped a V-8 into one of these then what happens? Is it overpowered for the transmission, drive-lines and differential? I don't know.
Hemi swaps require a tranny swap as well. Not so sure about the TC or axles but most folks that can afford a $20k Hemi upgrade typically have the bones for those nice D60's front and rear a few have gone with Atlas TC upgrades but IIRC the RockTrac TC has been maintained in the applications were a Rubi was used.
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Old 04-22-2010, 11:30 AM   #23
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does the T&C have the same tranny? that might be why.
Different tranny (JK is 6 speed; T&C, auto) and I am sure the gearing is different as well.

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Old 04-22-2010, 01:03 PM   #24
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Exactly what I hear, again and again. JKU's with hard tops & automatic trannys seem to be the dogs of the bunch... Maybe CD should have explored an optional OEM supercharger or a V-8 for the hardtop JKU.

On that note, my 2dr 6spd w/ soft top hauls butt.
Couldnt disagree more...my 2 door auto w/ hardtop is far from being a dog.

I was expecting it to be a snail based on reviews I read both on here and elsewhere on the net, but as stated above, no problems merging on to a highway, no problems passing other vehicles....
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Old 04-22-2010, 01:35 PM   #25
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Couldnt disagree more...my 2 door auto w/ hardtop is far from being a dog.

I was expecting it to be a snail based on reviews I read both on here and elsewhere on the net, but as stated above, no problems merging on to a highway, no problems passing other vehicles....
That's why I said JKU (JK Unlimited)
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Old 04-22-2010, 01:36 PM   #26
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That's why I said JKU (JK Unlimited)
OOPS!!! My bad....
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Old 04-25-2010, 08:32 PM   #27
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What I've found is that in my particular case, a 2 door with stock tires, gearing and a soft top, this 3.8 works fine. The performance is similar to my 93 Cherokee with the 4.0, but the engine is a LOT more refined. I'm more impressed with it that I thought I'd be. And it seems to work well at lower RPM on the trails. I'm still new to it and I occasionally find myself on the freeway going 65 and still in fourth, since it makes so little vibration and noise. True, there seems to be little reason to take it past 4 grand, but maybe with a better exhaust, intake and a chip you might find more power there if you need it.

Jeep did make CJ-5's and CJ-7's with a 304 V8 back in the 70's, but I don't think you'll see a much lagrer motor during the fuel economy era. If they don't do it in 2011, Chrysler will likely put a Pentastar motor in the Wrangler in 2012. They should be able to get up to 300 hp out of that motor if the use DI.

But so far, I'm very happy with the 3.8.
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Old 04-25-2010, 09:05 PM   #28
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my thoughts on 3.8

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Originally Posted by guygettnby View Post
for all the people who have agreed to this thread and think the 3.8l is plenty of power... how many of you have a 2dr and how many have a 4dr.


I have an 08 2dr 6 speed, I think it needs more torque in the lower rpm range to take off a little better, or I just need better gears. It cruises ok on the highway, but 6th gear sucks anytime i climb a slight grade or the wind hits it then its time to downshift!!! I get around 15/20 mpg.
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Old 04-25-2010, 09:37 PM   #29
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You bought a Jeep. If you don't think it has enough power drop a SB Chevy in it. I'm sure it won't take Novak long to come up with a conversion kit.
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Old 04-25-2010, 09:46 PM   #30
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I have an '07 X 2dr w/ hardtop and auto trans and no complaints here! I have 66,000 miles on it!

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