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Unread 09-09-2012, 03:55 PM   #1
rachaelbarr
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4 Cyl TJ Opinions

I have a stock (with 30" tires) 4 Cyl TJ. I posted before that I wanted a lift..and people suggested no more than a 2" etc but that just doesn't cut it for me...I'm more go big or go home.
I'd rather a 4" with 33" tires.
My questions:
-Is this possible with a 4 Cyl? If so, how?
-If its a lot of differential and gear swapping, should I just wait and get a 6 Cyl engine?

I need thoughts please!!

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Unread 09-09-2012, 04:31 PM   #2
SecondTJ
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Sure, you can 33's with the 4-cylinder. But you will need to re-gear.

I'd say wait to find a 4.0 with stock 3.73's, better to spend the extra money to find this setup. Much more liveable, and gives you room for future build too if you decide to go bigger.
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Unread 09-09-2012, 05:31 PM   #3
sc00bz
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33x12.50s will require 4.88 to be comfortable driving. Expect high rpms on the high way. Other than that, the combo works nicely for me.
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Unread 09-09-2012, 07:43 PM   #4
armyRN
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33" tires with 4.88 gears runs almost exactly the same RPMs as stock tires with 4.10 gears.
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Unread 09-09-2012, 08:15 PM   #5
skfullen
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I am running 30's on an 05, 4 cylinder TJ and enjoying the relatively GREAT gas mileage. I had an '02, 6 cylinder with a four inch lift and 33's that got about 13 mpg. I spent about 6k in lifts, tires, bumpers, and modifications. It looked awesome, but I wont do it again.

I'll leave this one stock, with a few mods. It is still quite capable, on and off road. And loads of fun to drive.
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Unread 09-09-2012, 08:19 PM   #6
ivester1992
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I run 35s on my 2.4l tj with 4.88s and I have no complaints. drives like it did stock
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Unread 09-10-2012, 05:29 AM   #7
4banged
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You would definitely need to regear for 33s (even with 6cyl you would want to regear to get back to optimum performance although my buddy is still limping around without using 5th gear with 6 cyl).
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Unread 09-10-2012, 05:37 AM   #8
Kodiak17
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Its not like you can't drive it, it just becomes a dog with 33's. I have the stock 4.10's and 33x10.50's, I think the skinnier tire helps. Might want to look into that.
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Unread 09-10-2012, 06:03 AM   #9
Gunner13
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Everyone loves to hate the 4 cylinder. I have 33 12.5 15 on mine and can still do 65. Takes a little longer to get there and i will regear eventually. But i love being the underdog every time i wheel. I always keep up. And i daily drive it 25 miled each way. All highway everyday.
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Unread 09-10-2012, 07:24 AM   #10
Ironhead
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Quote:
Originally Posted by skfullen View Post
I had an '02, 6 cylinder with a four inch lift and 33's that got about 13 mpg. I spent about 6k in lifts, tires, bumpers, and modifications. It looked awesome, but I wont do it again.
but did you re-gear it or lug your motor to poor gas mileage?
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Unread 09-10-2012, 08:23 AM   #11
gst95dsm
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I'd rather drive a 4cyl / 5 speed on 33's with 4.10's than a 6cyl on 33's with 3.07's...... I think that's one of the BIG advantages of a 4cyl. 4.10's and 33's is very livable. The mandatory re-gear comes with 35's.
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Unread 09-10-2012, 09:33 AM   #12
RobSheaTJ
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Quote:
Originally Posted by gst95dsm View Post
I'd rather drive a 4cyl / 5 speed on 33's with 4.10's than a 6cyl on 33's with 3.07's...... I think that's one of the BIG advantages of a 4cyl. 4.10's and 33's is very livable. The mandatory re-gear comes with 35's.
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Unread 09-10-2012, 09:34 AM   #13
ivester1992
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mine came with 3.73s, those with 35s was no beuno
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Unread 09-10-2012, 10:04 AM   #14
sailsurf7713
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The 4 popper will handle 33s just fine with 4.88s. But, why the 4" lift? It just brings on added complications. 2" and 1.25" body lift and toss on 33s. Then you have money left over to spend on other stuff.
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...I say don't lift but CUT. :)
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Unread 09-10-2012, 11:07 AM   #15
armyRN
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Here you go - read all about it. A 1998 Jeep TJ 2.5/5-speed/4.88 gears/3.5" lift/33" tires with two big guys, back seat removed for luggage, and pulling a trailer loaded with camping gear on a two-week trip up to Alaska and Canada. The Jeep did just fine, even in the higher elevations.

http://www.jeepforum.com/forum/f58/a...nture-1371427/

4.88 gears and 33" tires (285/75/16") is the sweet-spot for a four cylinder TJ. Yeah, sometimes you have to downshift on a long uphill drive - get over it. It's not a sports car. Six-cylinder TJ owners also regear for tire size changes, and they have to downshift too sometimes.
alaska-20day-201-20004.jpg  
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