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Unread 01-02-2007, 08:01 PM   #1
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2011 JK Wrangler 
Join Date: Feb 2005
Location: Hubert, NC, Nort Carolina
Posts: 92
2.5 4 Angry Squirrels Jeep Owners

Let me hear you holla at the forum! I want to hear the love and hate stories on the steady little engine that could. I am still working on my 2.5 4 Cylinder Wrangler and getting ready to purchase gears for my Front D44 and Rear AMC20. I am currently running 35 BFG AT and want to hear from you owners of that little 2.5 as to how it rides, love or hate it and why? I have a 6 cylinder on my garage and I am still debating whether I should rebuild it and get rid of my faithful little engine. Let me hear from you guys.


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Unread 01-02-2007, 08:18 PM   #2
Big-n-Broke-YJ's Avatar
1989 YJ Wrangler 
Join Date: Apr 2005
Location: Wilmington, NC
Posts: 5,765
i run my 2.5 because i love the look on people's faces when i tell them i have a little 4 cylinder under the hood..... for MY driving needs, it's perfectly fine... for most it would leave much to be desired.

bottom line... the look on people's faces are priceless when my 4 banger pulls their stuck rigs from the mud, rocks, or beach on it's 40" tires

-Erik <--- likes being the underdog.. and winning
'89 Wrangler, 4.0/AW4, 106" Wheelbase, SOA, custom XJ packs, 2" Body. Front High Pinion Dana 44 w/yukon super-joints, chromo inners and outers, and a Lincoln Locker. Rear Dana 60 w/Yukon 1.5" 35 Spline chomo shafts and detroit locker. 5.38 Yukon Gears. Hydro-Assist, 39.5x18" Boggers on 15x12 RockKrawler's w/ 2.75" of backspacing. Comp cut, tube fenders, custom bumpers and rock sliders, fuel cell, CB, Stewart Warner Gauges, SmittyBilt XRC8 Winch, 140 Amp CS-144 Alternator, Electric Fan, and a cooler of beer. 3897 lbs

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Unread 01-02-2007, 08:27 PM   #3
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2013 JK Wrangler 
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I don't know how much this will help you, but I have a '93 with the 2.5, 5speed tranny and 87,500 miles and I have no complaints about it. It is not my DD, and when I do drive it the last thing I think about is speed and power. My D-35 is a bit sick so I am cautious with it and try not to go over 55mph. We have hills here in the Blue Ridge Mountains that can really play heck on a small 4cyl motor, but again when I drive the Jeep it is more for pleasure than transportation. Some people say that there is no difference on the trails and I don't know about that because I am having to nurse this d-35 until I can find an affordable replacement, and that the only difference is on the highway and that is noticeable. However a buddy of mine recently sold a 2.5 that he had for a little over a year and he said it would run circles around the 6 cyl Jeep he had (he owns a car lot is why he buys and sells frequently). If I could chose and both motors were equal in terms of durability and dependability, I would probably chose the 6cyl as it does give you more options as far as towing and on the highway especially if it is a DD. Thats just my
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Unread 01-02-2007, 08:31 PM   #4
Helldorado Customs
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1989 YJ Wrangler 
Join Date: Aug 2005
Location: Jefferson City, Missouri
Posts: 4,993
I tore my 4banger out and put in the 4.0L. Thats the end of my story.
I like to build stuff. Want to know what I build, you can google it HERE
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Unread 01-02-2007, 08:48 PM   #5
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1997 TJ Wrangler 
Join Date: May 2004
Location: lowell,MA
Posts: 196
i tore mine out and put a vette 350 in i love power
90 yj under major construction d70rear,dana60 front,soa,xj rear springs 6"streach,chevy350,700r4,d300,comp cut.more in the works
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Unread 01-02-2007, 08:51 PM   #6
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1973 CJ5 
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Location: Indiana
Posts: 175
For me the four cylinder works pretty good, but my set-up is pretty much stock. The only problem I have with it is the driving into the wind on a highway. Has troubles sometime getting over 65. What will you be using your jeep for mostly?
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Unread 01-02-2007, 09:12 PM   #7
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1995 YJ Wrangler 
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Location: Long Island, NY
Posts: 444
My 4 banger moves my 33's just fine. I actually have plenty of power for what I do. I think its all about knowing how to drive a manual and getting the most out of the 2.5 that really pays off and shows you what its capable of.
3.5" Fabtech lift, 5/8" MORE Boomerang Shackles, Brown Dog Motor Mounts, 33x12.5 Mikey Thompson Baja Claws, MT 15x8 Classic II Alloys, JKS swaybar disco's, Rancho RS 5000 stablizer, Skyjacker Hydro 7000 shocks, Warn Bumper w/ pre runner, On board air, Grant Wheel, PIAA Windshield mounted lights, Herculined Interior
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Unread 01-02-2007, 11:00 PM   #8
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Location: Hollister
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The four banger is that bad except when there is wind and/or a hill. This past trip from home I averaged 77 mph and I wasn't even maxing it out. I once hit around 90 by accident.
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Unread 01-02-2007, 11:08 PM   #9
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4 cyl is the way to go!!!

...im just jealous i didnt get the six

w/e, i wouldn't want to be doing 90 in my wrangler, 60 is good enough
89er 4banger

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Unread 01-02-2007, 11:50 PM   #10
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1992 YJ Wrangler 
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Location: Indianapolis, IN
Posts: 949
my jeep had a 92 four banger in it, then blew up, so buddy gave me the jeep and i dumped another 2.5 into it from the scrapyard.... need some gears....waiting for 4.88 gears
1992 YJ Sport White 4.3 swap in progress
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Unread 01-03-2007, 01:04 AM   #11
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1989 XJ Cherokee 
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Location: SE WI
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Geared properly I think the 4banger is fine. Even with the auto I still do OK on the highway, mine is MPI, don't know how the carbed 2.5's are. On the trails I love having the 4. It's a great feeling when you make it through everything they guy with the V8 does. I drove mine 5 hours to the last Jamboree and did just fine, of course drafting semi rigs does help.
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Unread 01-03-2007, 05:23 AM   #12
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1989 YJ Wrangler 
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Location: Frederick, MD
Posts: 1,704
I love driving mine; it's the only vehicle I own that I can drive "pedal to the metal" most of the time!
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Unread 01-03-2007, 05:44 AM   #13
David K.
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Location: MA
Posts: 322
I tell people all the time when they say they would love to have a jeep. Don't get the 4 banger. it is not an opinion that 33's suck the life out of it. That is a fact. Some people don't have to drive on the highway or against the wind ever. for them the 4 is fine, and off road it is fine too. I know some have done some improvements in the way of gearing, throtle bodies, exhaust ect..... you can do the same thing to the 6 and have even more fun. The four was designed to be great off road but stinks on road if you are doing much driving.

When I am getting on the highway I love the 4 banger.<<<<<someone say that and mean it!

When an old person who should have had their license taken away 10 years ago is infront of you, you love the 4 banger to get around them!!!

Don't take it personally any of you, I was just venting
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Unread 01-03-2007, 07:44 AM   #14
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They are tough little engines. I DD mine since it's the only vehicle i own. I pull my boat (that weighs 2200lbs) with it, no problem.

Running 31's i have no problem maintaining 70mph on the highway. I am about to drop in a Dana 44, 4.88's, and 33's and i'm keeping the 2.5. When it blows up, i'll replace it with another 2.5.
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Unread 01-03-2007, 07:51 AM   #15
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1994 YJ Wrangler 
Join Date: Apr 2002
Location: Lennon, Mi
Posts: 2,132
I loved mine around town, but the lack of power got me road raged one day on the e-way, I was in the left lane slowly passing the car in the right lane, (I was going 75ish) and couldnt get out of the guy behind my jeeps way fast enough, so he pushed me head on into a guardrail. I hit at about 45 and at about a 45 degree angle after he rammed me, got me fishtailing then passed on the shoulder. I almost went over the bridge that day. Ripped the entire front supension from under the jeep, blew apart the t-case and broke the motor mounts. The jeep got fixed, the 4 cyl got smoked, and the 355 went in. No complaints now.
94 V8 YJ, SOA, H1's, 37's, HP D44, D60, 4.88's, winch and some other goodies
1946 CJ2A, 225 V6, T98 D18, Warn OD, D30/D44. Dual winches mild lift & 34's
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