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Old 01-10-2013, 12:46 PM   #31
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Quote:
Originally Posted by D2K47 View Post
Wasn't the 2.4 DOHC used in the pt cruiser???!!!! 'Nuff said.
That, and the Neon

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Old 01-10-2013, 03:22 PM   #32
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Originally Posted by Chadwhitehead10 View Post
I found a 2000 TJ in great condition today however it's a 4 Cyl. I'm
Not a mechanic by any means but I know this engine is not desired in a wrangler. I'm in Florida so I'm not going up hills like a maniac so I don't need tons of power, however is the trade off between the 6 and 4 that horrible? And if they are that bad is there anything I could do to get some more horsepower or better pick up? And would I really see a difference in gas mileage? Thanks for the response!
Ive had two 2.5L engines in my TJ for 12 years it has been a good engine. 1st one lasted 175,000mi before the piston connecting rod started to go. After all the wheeling rock crawling, mudding and abuse I put that engine through I was very surprised it lasted that long. I got a Jasper REMAN and have 30k on it. Power is an issue going up hill on highway I'm pushing 33x10.5 no regear yet so 4.10 but I am going to go to 4.56in about a month. I get 18 to 20 MPG.

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Old 01-10-2013, 05:19 PM   #33
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Judging by some of these comments you would think the 4.0l puts out 400hp. Do you guys wave at SE's when you drive by or just turn your nose up and look for 4.0's?
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Old 01-10-2013, 05:49 PM   #34
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Even though I joke about my 2.5L deep down I think I would choose it over the 4.0 for what I use mine for...plus mine is 2 less cylinders to worry about;D
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Old 01-10-2013, 06:31 PM   #35
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Originally Posted by D2K47 View Post
Even though I joke about my 2.5L deep down I think I would choose it over the 4.0 for what I use mine for...plus mine is 2 less cylinders to worry about;D
I feel the exact same way D. I always laugh about topping out at around 75, but I didn't buy a TJ to go fast. I got a TJ so l can tool around 2-tracks and logging roads looking for rivers and streams with my dog.
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Old 01-10-2013, 06:39 PM   #36
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The 2.5 is a good quality long term engine, but is definitely lacks the power needed at times.
I would go with the 4.0 engine!
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Old 01-10-2013, 06:44 PM   #37
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Must be your area I guess, when I was looking for my TJ the prices seemed to be pretty close no matter if it was a 4 cyl or 6 cyl. So I just got the straight 6, I love it, but I primarily do a lot of flat driving.
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Old 01-10-2013, 06:48 PM   #38
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The 2.5 is a good quality long term engine, but is definitely lacks the power needed at times.
I would go with the 4.0 engine!
I own the 2.5. I have driven several 4.0 Tjs, offroad and on. While the 2.5 may not have the pickup that 4.0 has on the road, I've yet to face a situation where my buddies 4.0's had enough power to conquer an offroad obstacle and my four banger didn't. Sure, you might have a better chance of passing cars on the highway, but as for me and my jeep, well, we cruise along; and we'll get there when we get there
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Old 01-10-2013, 07:15 PM   #39
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Originally Posted by Horn5413 View Post
Judging by some of these comments you would think the 4.0l puts out 400hp. Do you guys wave at SE's when you drive by or just turn your nose up and look for 4.0's?
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Old 01-10-2013, 07:43 PM   #40
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Theoretically you could get 400, if you put 2 of them in and souped em up a bit. Factory claims 190 I thought, but they always exaggerate.

I just got the 4.0 because typically straight 6 designs have better torque. I could care less about horsepower since wranglers weren't built for speed anyway. It's pretty much just a beach cruiser for me anyway, It probably won't see many rocks while I own it, I don't know where to find em around here anyway.

I probably would have been fine with the 4 cylinder, but for whatever reason they didn't seem to be much cheaper than the 6's around here when I was shopping.

I could go for a 6 speed tranny though. If I can find one somewhere will it bolt up to the 4.0L or do I have to change out the computer and wiring too?
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Old 01-10-2013, 09:34 PM   #41
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Bought my '97 with 4 cylinders and 5 speed stick about 4 years ago and really like it.I asked the dealer(he sold Jeeps exclusively for many years) about the overall durability of the 4 and he reminded me that the original Jeeps used in deserts and jungles of World War Two were all 4 cylinders.Did not know that.
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Old 01-10-2013, 09:38 PM   #42
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4 cylinders are great as long as they are attached to another 4 cylinders.
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Old 01-11-2013, 07:10 AM   #43
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I have a Pentastar now and to be honest, I miss the torque characteristics of the 4.0... I understand all the rage about inline-6 motors now haha. While all those HP are nice, im spending most of my time making quick decisions going slow than passing people on the highway.

I can only imagine how disappointed TJ drivers were when the JK wranglers just came out with the 3.8 haha
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Old 01-11-2013, 07:30 AM   #44
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I'm going to quote Bruce Lee on this one for the 4cyl jeep owners lol.

"Until you can live without comparison you truely will not know what is right for you"

Thinking that way, is a 4cyl really that bad? Compared to what? An inline 6 or not having a vehicle? Good and Bad are simply based off decisions make that involve comparisons. We choose things to compare to make things seem better or worse. Nothing is better or worse than anything else if you can avoid comparison.

So, without comparing... does the Jeep work for you? If your always dissapointed with lack of power, look into a bigger engine. If it works just fine, stop comparing and hit the trails with a smile.
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Old 01-11-2013, 07:48 AM   #45
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Bruce Lee? We depend on Bruce Lee for wisdom? Jeeeeeeze!!! I asked my fourth grade teacher, " if we don't tell people that they are poor, then how would they know they are poor?" I got sent to the principals office for being a wise ass, received 5 cracks, and sent back to class...no wonder the cultural revelation of the late 60s happened... and now, you quote the great profit Bruce Lee? LOL!! actually the 4 cylinder engine is better suited for the TJ as it performs a bit better on trails, and contributes to the overall "balance" of the vehicle.. The 4.0 I6 is actually a compromise that was utilized to satisfy Americans thirst for speed and horsepower..
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Old 01-11-2013, 08:28 AM   #46
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Originally Posted by Rubicondon53
Bruce Lee? We depend on Bruce Lee for wisdom? Jeeeeeeze!!! I asked my fourth grade teacher, " if we don't tell people that they are poor, then how would they know they are poor?" I got sent to the principals office for being a wise ass, received 5 cracks, and sent back to class...no wonder the cultural revelation of the late 60s happened... and now, you quote the great profit Bruce Lee? LOL!! actually the 4 cylinder engine is better suited for the TJ as it performs a bit better on trails, and contributes to the overall "balance" of the vehicle.. The 4.0 I6 is actually a compromise that was utilized to satisfy Americans thirst for speed and horsepower..
Still thirsty
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Old 01-11-2013, 07:49 PM   #47
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i love my 4 banger!
It's all about the set up.
Mine.....4.0 TB, injectors, K&N cold air intake, waggy axles, SOA, 4:11 gears, Detroit lockers in both axles, SOA, 36x13.5R15 IROKS



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Old 01-11-2013, 11:36 PM   #48
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Quote:
Originally Posted by Chadwhitehead10 View Post
I found a 2000 TJ in great condition today however it's a 4 Cyl. I'm
Not a mechanic by any means but I know this engine is not desired in a wrangler. I'm in Florida so I'm not going up hills like a maniac so I don't need tons of power, however is the trade off between the 6 and 4 that horrible? And if they are that bad is there anything I could do to get some more horsepower or better pick up? And would I really see a difference in gas mileage? Thanks for the response!
I get 20 mpg. Header, intake, throttle body spacer and high flow muffler add noticeable power to the 2.5L. A turbo set up does wonders on it though.

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Old 01-12-2013, 01:03 AM   #49
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They're not bad motors, but I wouldn't set out to buy one. Just assume get the 4.0. They're are plenty to be had.
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Old 01-12-2013, 01:10 AM   #50
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It depends, if it's a 4cyl manual vs 6cyl automatic, they behave practically the same in the hills, rocks and dunes. if it's a manual 6cyl, it will outperform the 4cyl in every aspect.
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Old 01-12-2013, 01:28 AM   #51
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Originally Posted by Pate
It depends, if it's a 4cyl manual vs 6cyl automatic, they behave practically the same in the hills, rocks and dunes. if it's a manual 6cyl, it will outperform the 4cyl in every aspect.
So basically yer sayin the 6 out performs the 4 in every aspect, DUH. Putting a manual against a slushbox is like comparing my ex wife to my girlfriend.
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Old 01-12-2013, 01:57 AM   #52
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Lol. Nevermind
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Old 01-12-2013, 02:00 AM   #53
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Originally Posted by Moabrubi

Right.. and a Mustang with a V6 and a stick is comparable to one with a V8 and an auto .
Say it aint so
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Old 01-12-2013, 05:34 AM   #54
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Personally,
Whether we're talking about Jeeps or trucks, a 4 banger in either is useless and/or ridiculous, IMO!

As was mentioned several times already, the mpg's is no different in a Jeep between a 4cyl and 6, so why take that puny engine?

Bigger IS sometimes better!!
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Old 01-12-2013, 06:13 AM   #55
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I have a 91, 2.5" lift 31" tires, 2.5l, 5speed manual 134,000 miles. Runs strong, great on the highway and around town. Does pretty good up hill if you use the correct gear......don't be afraid to bring her up to 3500 rpm. Over all, absolutely no complaints!
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Old 01-12-2013, 06:29 AM   #56
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I have owned both a 4 and a 6 and can honestly say, I would never get a 4 again unless I were to use it only on trails or around town.

In my humble opinion, the 2.5 is absolutely terrible at a highway speed. It's not just the hills, but it can't pass and there is nothing you can do to make it better.

Just my 2 pennies.
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Old 01-12-2013, 10:12 AM   #57
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Originally Posted by WaterDR
I have owned both a 4 and a 6 and can honestly say, I would never get a 4 again unless I were to use it only on trails or around town.

In my humble opinion, the 2.5 is absolutely terrible at a highway speed. It's not just the hills, but it can't pass and there is nothing you can do to make it better.

Just my 2 pennies.
I wheel with 4.0 and v8s all the time.with the stock 4.10s and trakloc and 31s there is alot to the weight differance.what i give up on the road i make up for in the trails.the thing that i really love is out of all the tjs and xjs ive owned this 2.5 is the most dependable.oil pressure up and temps down.makes some lifter noise but i didnt build this one.the next rebuild will be bullet proof bottomend with cam and rollerrockers.the cam will help in the power department.
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Old 01-12-2013, 10:16 AM   #58
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For what they are designed for, the four cylinder is sufficient, does give better weight balance. If you want to go fast, a Jeep is not what you want regardless of the engine. If you are using it with larger tires and severe terrain, the extra hp is helpful, but the average Jeep user is not going to those extremes. Just get what you need. I've got a 4.3 that I eventually will put in mine when the Chrysler motor dies, but I'm in no hurry because it does what I need it to do right now.
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Old 01-12-2013, 12:34 PM   #59
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I have owned a 4 cylinder for about a month. I have no idea why the previous owner put 33" tires on the thing, because the thing struggles up hills in 4th and the 5th gear is almost useless on the terrain where I am (mostly plentiful shallow hills). I wish I went for a 6, but around here, jeeps are way overpriced. I bought my '99, 78k mile TJ for $5,400. Check it out in my garage. KBB puts it at around $8,000 without the 6" Lift (4" coil skyjacker, 2" body) (No rust on frame either). If I were to guess, the value of this vehicle is around $10,000. I am thinking about turning it around for a profit, but I love it too much! Next fall I will probably upgrade.
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Old 01-12-2013, 01:04 PM   #60
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I have owned a 4 cylinder for about a month. I have no idea why the previous owner put 33" tires on the thing, because the thing struggles up hills in 4th and the 5th gear is almost useless on the terrain where I am (mostly plentiful shallow hills). I wish I went for a 6, but around here, jeeps are way overpriced. I bought my '99, 78k mile TJ for $5,400. Check it out in my garage. KBB puts it at around $8,000 without the 6" Lift (4" coil skyjacker, 2" body) (No rust on frame either). If I were to guess, the value of this vehicle is around $10,000. I am thinking about turning it around for a profit, but I love it too much! Next fall I will probably upgrade.
4.56 or 4.88 ring and pinion

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