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Unread 07-06-2010, 12:08 AM   #1
1998tjsport
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Advice on my new 4 cyl TJ.

Long story short, had a 1998 5 speed 6cyl for three years. Beat the piss out of it and loved it to death. It was stock 3.73 on 31's and it was a blast. I was offered only 1000 less then I paid for it and couldn't say no (it needed work). Sold it about 2 months ago(Selling it was a mistake I know I know) and now guess what I bought another jeep haha. This one is a 99 I bought from a friend with a blown motor and unfortunately its only a 4cyl. I looked into swapping it out for a small block or maybe a 6 but its just more than I care to deal with now, and on top of that the trans and clutch only have about 2500 miles on them so I really don't wanna just toss them out. So the verdict is to have the 4cyl rebuilt, but now onto the questions. First it has 31's and 4.10 but a 2inch lift as well. So should I A) Leave the lift and put 33's or B) Remove the lift and keep the 31's? How Slow is it going to be with 33's? Gas mileage makes no difference its a god damn brick, but I would like to go 70mph when I want. What do you guys think? Oh also my stock jeep and me had gone everywhere and anywhere and it was more than capable for what I did so the larger tired aren't NEEDED but they would be nice. Opinions please?

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Unread 07-06-2010, 12:59 AM   #2
MATT99TJ
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I never had a problem going 70 - 80 mph in my stock 4 banger with 30's on it. I didn't go that fast very often, but when I was in a hurry she would go with no problem.
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Unread 07-06-2010, 04:19 AM   #3
jasonamorris
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I have about the same setup, 4banger, 5sp, 31's and its all i can do to get above 60.... ?? Is my 4banger really that weak?
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Unread 07-06-2010, 04:30 AM   #4
TheBoogieman
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Leave the lift on with the 31's or add a 1" BL and go with 33x10.50's.My 4 banger with 31's had no trouble doing 75mph.
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Unread 07-06-2010, 08:34 AM   #5
97yellow
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my 4 cyl with auto has no problem going 70 the only problem is when you come to large hills it really slows down
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Unread 07-06-2010, 08:37 AM   #6
ReformedTJr
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Yeah, I'm running a 4cyl with 31s. No problem if I stay out of the mountains.
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Unread 07-06-2010, 08:38 AM   #7
Ghaniba
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I can't imagine that would be fun to step down to a newly rebuilt 4cyl after having driven the 6cyl for years...

Just my opinion, of course. I've driven both, and I wouldn't want the 4cyl after the 6.

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Unread 07-06-2010, 08:41 AM   #8
AustinCJer
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Quote:
Originally Posted by MATT99TJ View Post
I never had a problem going 70 - 80 mph in my stock 4 banger with 30's on it. I didn't go that fast very often, but when I was in a hurry she would go with no problem.
Quote:
Originally Posted by TheBoogieman View Post
Leave the lift on with the 31's or add a 1" BL and go with 33x10.50's.My 4 banger with 31's had no trouble doing 75mph.
Quote:
Originally Posted by 97yellow View Post
my 4 cyl with auto has no problem going 70 the only problem is when you come to large hills it really slows down
All this...

I too have a few gerbils powering my Jeep. I have 32" M/T's with 3.5" of lift, I was running 75 MPH this morning in 4th gear, up hills, no problem. Is yours an auto or manual?

Point of reference... again 32's, 2.5" SL, 1" BL.
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Unread 07-06-2010, 09:35 AM   #9
1998tjsport
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Quote:
Originally Posted by Ghaniba View Post
I can't imagine that would be fun to step down to a newly rebuilt 4cyl after having driven the 6cyl for years...

Just my opinion, of course. I've driven both, and I wouldn't want the 4cyl after the 6.

Dave aka Ghan
Yeah but you have to realize I am going to be making money on this truck, I paid 1k for it and its in great shape minus the motor and it needs a good detail. The new motor will cost me about 1k. So for 2k Ill have a 99 Wrangler with a new motor, trans, and clutch that I could always sell for double what I have into it...... Plus im not about going fast in it, I have my Corvette for that
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Unread 07-06-2010, 09:46 AM   #10
TheBoogieman
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Quote:
Originally Posted by 1998tjsport View Post
Yeah but you have to realize I am going to be making money on this truck, I paid 1k for it and its in great shape minus the motor and it needs a good detail. The new motor will cost me about 1k. So for 2k Ill have a 99 Wrangler with a new motor, trans, and clutch that I could always sell for double what I have into it...... Plus im not about going fast in it, I have my Corvette for that
Drive it to Va when you're done and I'll give you $3000 for it.
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Unread 07-06-2010, 09:51 AM   #11
1998tjsport
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Quote:
Originally Posted by TheBoogieman View Post
Drive it to Va when you're done and I'll give you $3000 for it.
Yeah haha I was offered 2200 as is with the blown motor by some guy who builds jeeps at my job. Its amazing how much these things hold their resale. My 1998 Had 130k on it, needed a new manifold, the ac didnt work, and the trans shifted like **** and I got 5500 for it . First guy that looked at it.....
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Unread 07-06-2010, 10:02 AM   #12
TheBoogieman
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Quote:
Originally Posted by 1998tjsport View Post
Yeah haha I was offered 2200 as is with the blown motor by some guy who builds jeeps at my job. Its amazing how much these things hold their resale. My 1998 Had 130k on it, needed a new manifold, the ac didnt work, and the trans shifted like **** and I got 5500 for it . First guy that looked at it.....
I know what you mean.I miss my old 98' but I got $10,000 for it a couple of years back.It was in mint condition with 35's.I wish I never sold it now.
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