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Old 02-18-2014, 05:06 PM   #31
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LOL. Trust me...there's no problem getting ladies.

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Old 02-18-2014, 05:35 PM   #32
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I wanted 4.0 but it went above my budget on ebay , instead bought a 2.5 which everyone said wouldn't have any guts . I have taken that little four banger everywhere the 4.0 l 's have been. Ok here in the uk we don't quite crave big V8's so much but every time I tell my mates / co drivers how much I would like the burble of a big v8 they say " if it aint broke …………. !!??" So far I have boiled it twice and it still won't give up .

Do jeeps feel good over 60mph anyway ? Drop a gear , remind yourself how much weight you are saving and drive the B$$LS off it and it will still come back for more


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Old 02-18-2014, 05:42 PM   #33
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Look to percolate everyone else's comments, there are ways to make a 2.5 powerful but it takes alot of money. If you are craving big power either, swap in a V8 or buy a 4.0. But if you can be content in the slow lane of life than take off the top, get off the freeway and enjoy a gentle breeze through ur hair at 35ish mph ;-)... Unless you live anywhere near me, in which case enjoy a whole bunch of snow!
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Old 02-18-2014, 06:43 PM   #34
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as said many times re-gearing is going to get you the most out of your 2.5
II geared mine to 4.88, and it is still gutless on the freeway, but I can run 5th no problem with 33" SSR's. I can shift into 5th gear comfortably at 40mph.
The 4.0 makes much more power than the 4.2 if you do decide to go with a motor swap. That is what I am planning on doing. V-8's are great, but most stock V-8's do not put out as much or more torque than the 4.0.
I ma just waiting for the right wrecked XJ to pull one from
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Old 02-22-2014, 12:00 AM   #35
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Wish someone could refer me to a shop in northern California for re-gearing for a good price.
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Old 02-22-2014, 12:02 AM   #36
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Wish someone could refer me to a shop in northern California for re-gearing for a good price.
Post that in the CA forum...someone should be able to help you.
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Old 02-22-2014, 01:04 AM   #37
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kool that so many Jeepers have shown my lil thread so much love. I took a lot of these recommends, did a lot of these. My build should be done before Easter. After much indecision.. I slapped the 33's to her last week & glad I did. Re-Gear maybe next year... 2.5 performance mods

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I live in Vacaville. Yes you can do a legal motor swap if you want to. The Referee at the smog shop gave me the lowdown. The motor you put in must be the same year or newer as your jeep and must meet all the smog requirements of the year of the motor. I was looking at putting in a Cumins diesel. He said yes, as long as its the right motor. As for the gears, mine is in getting gears and Elockers right now. 4.88's front and rear, super 30 kit in front. There are some legal upgrades you can do that will help. Electric fan, high flow cat back exhaust, 4.0 throttle body, 19lb injectors etc. Read this thread.
2.5 performance mods
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Old 02-22-2014, 06:44 AM   #38
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Wish someone could refer me to a shop in northern California for re-gearing for a good price.
I just had Sean at River City Diff in Sacramento redo my front and rear.
Front got a Dana super 30 kit (cromoly 31 spline axles, heavy duty steering joints, one piece right side axle), SOLID diff cover, 4.88 gears and an Eaton Elocker.
The rear is a Ford 8.8. It got 4.88 gears, a new limited slip with the Ford racing limited slip clutch kit (the old one was to far gone to repair), one new axle (was bent when I bought it). Both got all new bearings and seal.
$3200 Sean at River City Diff 916-852-7 one zero nine. Tell him Lee sent you.
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Old 02-22-2014, 07:16 AM   #39
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LOL. Trust me...there's no problem getting ladies.


To quote Shakespeare: "The lady doth protest too much, methinks."

Sorry dude only kidding, but you left yourself wide open for that one!

Back to the topic……. Keep the 4 cylinder!!!
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Old 02-22-2014, 07:36 AM   #40
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Hey Guys, I need some cheering up to get out over my weak 2.5L engine. Just came from a mechanic (suppose to the best in town) to get an opinion on getting more power out of my 4 banger. He wouldn't even look at it. The guy has been in business for 30 years and said he would not even work on a 2.5L jeep engine. They're just not worth it he said. I know most of you will say "swap it out". Well...I live in the state of California and because of our emissions laws here, I don't think a 350 blocks are allowed. I guess I will have to live with never being able to shift to 5th gear. Makes me want to move out of Cali. How many are happy with their 2.5L engines?

I did move out of California mostly, and for more reasons than that (political and environmental). I just bought a 1990 YJ in Galt California about 2 months ago, and will be moving it to our other home in the mountains of Idaho, where we have endless mountain roads to travel, without the criticism of the enviro's.

I love the YJ I just bought, and I specifically wanted the 2.5 with a 5 speed. I will rarely be traveling with it on the highway, so the 2.5 with 235x15 works perfectly for me and my wife. I have don't have, nor do I want a lift on it, being 63 years old I am not wanting to "climb" up into my vehicle. My Jeep is purely for recreational purposes, which the fairly bullet proof 4 cylinder performs very well. My wife drives a 2013 JK unlimited as a daily driver, and it's 285 horsepower V6 is unbelievably fast and comfortable, along with my F250 diesel 4x4, we are well equipped for the Idaho weather.

Good luck on your adventure, I might suggest selling the Jeep you are unhappy with, and look for one someone that is selling their Jeep who has already put 10 grand in the conversion and upgrades, you will save a lot of time, effort and money.

BTW, I believe the law will allow you to swap your engine as long as you meet the emission standards of the year it was built. I have a 55 Chevy with close to $100 grand in the frame off restoration, and there is no smog whatsoever. Just my 2 cents
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Old 02-22-2014, 08:36 PM   #41
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I have a 1995 4 banger too, and hate the lack of power.

I looked at so many options (sell it, buy a bigger one, re-gear, boost, swap, etc…), and finally went and bought a rusted out 94 XJ for cheap. I will post the whole swap and engine rebuild once all done, because I can only work on it on weekends, and it is taking me longer than planned because of the cold weather we have here in Canada.

But back to your question about the 4 banger, from all the reading I did, swapping in a 4.0L will be your best, cost-effective option, although a lot of people would say it would cost as much to swap in a 350 SBC, but I just wanted to keep it simple and bought a full donor XJ with 4.0L for 300$ running, i got lucky. Not only to save money, but I also enjoy working on my Jeep. I chose to rebuild the engine because of oil leaks all over the engine and want to make sure I had a solid engine in my car.

my advise, try to find a cheep XJ, close to your year, and do the 4.0L swap, you will learn so much about your Jeep. I will post once mine is complete.

Cheers

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Old 02-22-2014, 11:10 PM   #42
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I have a 1995 4 banger too, and hate the lack of power.

I looked at so many options (sell it, buy a bigger one, re-gear, boost, swap, etc…), and finally went and bought a rusted out 94 XJ for cheap. I will post the whole swap and engine rebuild once all done, because I can only work on it on weekends, and it is taking me longer than planned because of the cold weather we have here in Canada.

But back to your question about the 4 banger, from all the reading I did, swapping in a 4.0L will be your best, cost-effective option, although a lot of people would say it would cost as much to swap in a 350 SBC, but I just wanted to keep it simple and bought a full donor XJ with 4.0L for 300$ running, i got lucky. Not only to save money, but I also enjoy working on my Jeep. I chose to rebuild the engine because of oil leaks all over the engine and want to make sure I had a solid engine in my car.

my advise, try to find a cheep XJ, close to your year, and do the 4.0L swap, you will learn so much about your Jeep. I will post once mine is complete.

Cheers

Doc E

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Old 02-22-2014, 11:28 PM   #43
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You can do a 5.7L, 4.3L, or even a 5.2L

Just have to find the right donor vehicle....

Where in Cali are you?
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Old 02-23-2014, 12:17 PM   #44
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You can do a 5.7L, 4.3L, or even a 5.2L Just have to find the right donor vehicle.... Where in Cali are you?
He's in Vallejo, not that far from you
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Old 02-26-2014, 10:20 AM   #45
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Ok guys. ..so i got a shop to do the regearing. The shop was recommended by a reputable mechanic. What can I expect from this modification? I know the shop could tell me this but I would rather know im getting the truth from you guys. Will I have to shift more often? What are the draw backs if any? How much more speed will I gain? Will this impact off-roading?
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Old 02-26-2014, 11:39 AM   #46
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Ok guys. ..so i got a shop to do the regearing. The shop was recommended by a reputable mechanic. What can I expect from this modification? I know the shop could tell me this but I would rather know im getting the truth from you guys. Will I have to shift more often? What are the draw backs if any? How much more speed will I gain? Will this impact off-roading?
What ratio r u regearing to?
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Old 02-26-2014, 11:51 AM   #47
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4.88
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Old 02-26-2014, 12:58 PM   #48
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What ratio r u regearing to?
i have 35s and 4.88, I mean it's not a speed racer but you want hear me complaining.
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Old 02-26-2014, 01:51 PM   #49
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Yes, you'll shift more often, but it's not that big of a deal. The upside is you'll have extra oomph to turn big tires. Top end on the highway will suffer, but you should have more overall power. Your clutch & transmission will thank you for going with a lower gear.
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Old 02-26-2014, 03:12 PM   #50
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The 2.5L in a jeep is good for taking it crawling and mudding, Mine does great but as far as driving on the road its defiantly not the best motor. But they are right its a Jeep haha
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Old 02-28-2014, 09:56 AM   #51
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okay guys....jeep is in the shop. Mechanic will start work on Monday so I have a little time to make changes to our agreed work to be done. The sales slip says "Replace Gear sets to 4.88". Was wondering if just changing the gear ratio is enough? Should he also be doing lockers and axle shafts? Should I ask for the old parts just in case I want to fallback to the original gears or sell them on Craigslist?
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Old 02-28-2014, 10:59 AM   #52
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I have 33s and 4.88 gears. Me personally if he is already in there spend a Little extra on lockers so you won't pay a ton more labor after. Mine does great off road. And on the road it's a ton better than stock with the 4.88. I work on the mountain and it climbs ten times better than before. Hint hint it is a yj so I would probily avoid highways either way haha
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Old 02-28-2014, 11:03 AM   #53
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LOL. Trust me...there's no problem getting ladies.
You guys are lucky. I have an Anti-Lady deterrent that sits in my Passenger seat. I call her The Wife.

Pretty effective too. Good Looking lady smiles and waves at Jeep, the Deterrent kicks in with a Super Secret Offensive trick learned in the deepest parts of China called The Stare. It has an Immediate affect on the Ladies but also has a Delayed affect on me that can last up to 24 hrs depending on how I respond to the Ladies waving.

Hopefully it will learn some day that I wave back cause I'm in a JEEP. You'd think after 18 years of Marriage she'd know
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Old 02-28-2014, 02:01 PM   #54
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Lockers are totally up to you & the style of off roading you do. I would not lock the rear 35. It's just too risky. A locker will compliment the front 30 nicely. A LockRite or lunchbox style locker would do great in the front.

Also, if he's gonna be inside the diffs, I recommend full rebuild kits. Seals, bearings, everything. He's already going to be in the diffs, you might as well go completely thru them. They'll be like new again.
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Old 03-01-2014, 10:26 AM   #55
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He quoted me 2000 in additional cost for the lockers. That's way to much for me.
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Old 03-01-2014, 02:35 PM   #56
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He's out of his mind. A lock rite for the front is around $250. You can find them on sale for less than $200 quite often. A lock rite for the rear is around $300. I don't recommend locking the Dana 35 tho.

What is he charging you to do the gear swap? Nothing pisses me off more than diff shop charging an arm & a leg to swap gears. My guy has been doing them for 40 years & quoted me $150 an axle to swap my 4:10's to 4:88's if I buy the gears.
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Old 03-01-2014, 02:55 PM   #57
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Maybe I should just move to Oklahoma...LOL. Also deciding on putting posi switch in. 500 bucks additional. He says it's not a cheap posi switch which sometimes fail.
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Old 03-01-2014, 05:10 PM   #58
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ey man theirs all kinds of things you can do to boost your power. i have a 2.5 an live in the mtns of wv. i may not be able to use 5th.on back rds but highway its fine. i have a 5 inch suspension lift,3 inch body,an running 33s. check out summit racing an get the davis unified ignition kit.a good ram air kit,elec fan,if u run wit ur top n doors off theirs no need for a ac. get rid of it.try a 4.0 throttle body on ur motor . u can use ford yellow top fuel injectors outta a 5.0 mustang.check out fourwheeler.com n search for the article abusing squirels theirs 11 diff things you can do on their. ive done all of them but installing a turbo. an you can notice the power an better gas as well.if you decide to do the turbo check out diyturbo.com. u can build them for 1/2 the cost of a kit.im workin on that now. u can also check out 505 performance an get a 2.5 stroker motor upgrade ur cams an heads. all 3 was ab 6gs.
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Old 03-01-2014, 05:16 PM   #59
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Old 03-01-2014, 06:00 PM   #60
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Maybe I should just move to Oklahoma...LOL. Also deciding on putting posi switch in. 500 bucks additional. He says it's not a cheap posi switch which sometimes fail.

LOL. Come on down! My guy has a shop in Clayton, OK about 40 min from my house. Look up Clayton, OK off road sometime, it's a hotspot for off road activity in SE Oklahoma. People come from all over the country to wheel there. Yes it's redneck, yes it's crazy hillbilly country, but he has a fully equipped machine shop & he knows his shiznit. He was in one of the Petersens Ultimate Adventure videos when they went to Clayton to wheel. 2006 I think? They took their rigs back to his shop to work on them after a day of wheeling.

Sure you could spend that much locking the diffs, but for what you're wanting & for what you're going to do with your Jeep there's no need to spend $800+ bucks per locker. Epically when a $200 Lock Rite in the front will do everything you need.

As for labor, a 10 year old could assemble a Lock Rite. They're the easiest locker made to set up, & your diff guy is already gonna be in the diffs.

Now as for the $500 posi lock. Dude, RUN. Run as fast as you can. A real brand name Posi Lock will run you between $120 & $150 depending on where you bought it, if you can find them on sale etc.etc. YOU can install it in an hour with simple hand tools. I don't understand why he thinks he can build a better posi lock? I'll promise you he can't build one that's $350 better!

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