What are the largest tires you can fit on a 4 banger TJ before you have to re-gear? Are engine swaps posible? I already have a 2 inch lift with 31x10.5's on it and it loses a bit of speed going up hills and I have to down shift to 4th to get it back. I am looking to go as tall as possible with a skyjacker rock ready lift. Any advice would be appreciated! Has anyone ever swapped a v8 into a tj?
Largest tires for 4 banger before you have to re-gear??
- Thread starter Nooch13
- Start date
I'm running 33's and the 4 banger and my Jeep is decent but on hills it has no balls and the milage sucks.
Next week im getting 4.88's so it should be alot better as for the Skyjacker lifts dont waste your money Spend it on a Rubicon Express Long Arm its a much better Lift and Flexes alot better . BTW I'm running a SJ lift I wish i spent the extra money on the RE LA
Next week im getting 4.88's so it should be alot better as for the Skyjacker lifts dont waste your money Spend it on a Rubicon Express Long Arm its a much better Lift and Flexes alot better . BTW I'm running a SJ lift I wish i spent the extra money on the RE LA
Bounty__Hunter
Super Moderator
I'm running 32" tires on stock rims, not too bad with the 2.5L and stock 4.11 gears but I've done a few power mods to the engine. 33" would be doable, I'm sure you know what you're getting into after seeing the difference 31" tires made.
I recommend 4.88 gears and forget an engine swap. Accept the 2.5L for what it is, and a powerhouse on the road it's not. Trade now for a 4.0L if HP is what you crave. I've done a YJ 350 swap, it's expensive and very involved, even more so on newer jeeps. Emissions may also be a concern depending on where you're located.
I enjoy my 2.5L on the trail, and it's tolerable onroad. I'll be going with 5.38 gears for 34" tires so i'll keep this drivetrain. If I did another swap, it'd be the GM 4.3L V6 from late model S10's, Blazers, and 1/2 ton trucks.
I recommend 4.88 gears and forget an engine swap. Accept the 2.5L for what it is, and a powerhouse on the road it's not. Trade now for a 4.0L if HP is what you crave. I've done a YJ 350 swap, it's expensive and very involved, even more so on newer jeeps. Emissions may also be a concern depending on where you're located.
I enjoy my 2.5L on the trail, and it's tolerable onroad. I'll be going with 5.38 gears for 34" tires so i'll keep this drivetrain. If I did another swap, it'd be the GM 4.3L V6 from late model S10's, Blazers, and 1/2 ton trucks.
TwistedCU
New member
I ran 32's on a 4 banger w/ stock 4.11 gears. I had most of the basic performance mods and I was pretty content with it. For what it's worth, I wouldn't buy another 4 cyl Jeep unless I got some kind of sweetheart deal on one, but if I had one now I wouldn't get rid of it just because it was a 4 cyl. work with what you got. Gears mean everything.
Tug-n-pull
New member
Duuuuhhhhh!
You already know the answer to that one. 31's suck all the juice out of a 4 banger with stock gears. My poor ol Jeezabel was in line for a regearing when I sold her. That was the straw that broke the camels back in parting with her. Already had a war pention in that jeep for what it was just could not see spending any more on it. tug
You already know the answer to that one. 31's suck all the juice out of a 4 banger with stock gears. My poor ol Jeezabel was in line for a regearing when I sold her. That was the straw that broke the camels back in parting with her. Already had a war pention in that jeep for what it was just could not see spending any more on it. tug
currupt4130
VT Hokie
ive got 33's and a 2.5, just put headers on and it made the world of difference, i kno a guy that runs 35's and a 4 banger no problem but im not sure if hes regeared
how do i clean my gas tank out right????
You can run 33's, but go with the skinnies. I have 33x10.50 BFGs with a 2.5L motor with 166,000 original miles. It's horrible even on highway overpasses. But it's also a solid motor. Regearing is the best answer, but it will drink more gas. If you want to save $ in the long run, sell it and buy a 4.0.
I also run K&N with a Dynomax Super Turbo muffler and it helps a lot. It's no speed-demon but it gets me there in style.
C
You can run 33's, but go with the skinnies. I have 33x10.50 BFGs with a 2.5L motor with 166,000 original miles. It's horrible even on highway overpasses. But it's also a solid motor. Regearing is the best answer, but it will drink more gas. If you want to save $ in the long run, sell it and buy a 4.0.
I also run K&N with a Dynomax Super Turbo muffler and it helps a lot. It's no speed-demon but it gets me there in style.
C
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