Need Suggestions!!

lfhoward · **Posted:** Mon Jan 19, 2015 9:25 pm

LongIslandKK wrote:

c'monnn, those were not the answers I was looking for :-)r

Have any of you guys put an exhaust on it or a cold air intake? Maybe a throttle body spacer?

As someone new to the site, you probably don't know yet that Tommudd is one of the most experienced and respected Jeepers on LOST. He's personally installed more than 30 Liberty lifts!

From being on here since '11, I've read a lot of posts on cold air intakes and performance mods for our 3.7. The stock air cleaner is basically a CAI already, because it is sucking in outside air from behind the headlight. Some people have swapped in K&N's, which add a cool sucking noise, but no real performance gains. They also let more particles reach your engine... not a good thing. Throttle body spacers have no real value for the 3.7. Jet chips and such get un-learned by the engine computer in short order.

There are two things that really do seem to provide more oomph. One is to swap the 3.7's electric throttle body for a larger one from the 4.7L V-8. The other is the Hypertech Programmer. Links below.
4.7 TB: http://www.lostjeeps.com/forum/phpBB3/viewtopic.php?f=88&t=79781
Hypertech: http://www.lostjeeps.com/forum/phpBB3/viewtopic.php?f=88&t=75931

Exhausts like Magnaflow, Flowmaster, etc. have been tried as well. Nobody I've seen has swapped in a larger exhaust header on the engine. If you do that, you might be the first.

LongIslandKK · **Joined:** Mon Jan 19, 2015 2:36 pm **Posts:** 18

Thanks a lot guys. You have really helped this noob!

lfhoward · **Posted:** Mon Jan 19, 2015 11:15 pm

LongIslandKK wrote:

Thanks a lot guys. You have really helped this noob!

Thanks! Glad to help!

Bmxer524 · **Posted:** Mon Jan 19, 2015 11:58 pm

LongIslandKK wrote:

Yes I am looking to lift. Want to stay away from spacer lifts but I also dont want to spend $3000.
Really just looking for a more aggressive look while not running into any problems. Could anyone provide me with a link to an air shield delete tutorial or how to. Also I am in the Port Jeff area.
Here are few setups I like:

This is Boblemoche's KK. He had a custom lift that sat over 4", ran 33s, and had custom bumpers and sliders. If I remember correctly he had some issues. I haven't seen him in a long time.

Looks good, but before Tom gets to it, the tires are too big for the lift. The owner probably did a lot of cutting and still doesn't have room to turn or flex without rubbing big time.

Same as before, looks good, but won't turn or flex. Tom has said somethings about this 1 before... lol

This is Musclezmarinara's KK. He sold it a year or so ago for a Ram. His was built like mine, 3.5" of lift and 245/75-16s. Here's his build thread: viewtopic.php?f=88&t=63889

Now that I mentioned all that, you PM'ed me earlier for pics of my KK. There's a few floating around, and I don't have any recent ones on my photo bucket so these are from when I first installed the lift and tires:

I've since pulled the air dam off and added sliders etc.

I run OME 927/731 springs, 1/4" top plate, 3/8" clevis lift, a-arms, and 2 extra rear isolators per side and 245/75-16 Duratracs. Back when I first lifted this was all had for $1200(plus tires) to my door. Then I did the install myself at a buddy's shop. Prices have gone up and this costs around $1300-1400. It'll give 3.5" of true lift from new-stock height.

If you want lower, or bare minimum for 245/75-16. You can look at Ironman or OME. Both will run around $800 and get 2.5" of lift. I'm pretty sure lfhoward linked to the lift FAQ. It'll explain everything in detail.

If you have the money, JBA is the best kit out there. The front adjustable coil overs cost $1500 alone though. The 2.5" kit is about $2k, and the 4" is $4k.

As for install, Scar0 made a great how-to for the JBA lift. Every lift basically installs the same way, some you need to compress springs etc.

Bmxer524 · **Posted:** Tue Jan 20, 2015 12:02 am

Almost forgot, you mentioned performance. Do a little reading around, most find that a CAI and exhaust just makes noise. You're lucky enough(I think) to be able to get a hyper tech tuner. It's the only sure fire mod that the ecu won't readjust for.

Some have also tried the 4.7L throttle body and find small gains.

PALiftedKK · **Posted:** Tue Jan 20, 2015 9:21 am

there are plenty of posts about swapping out the throttle body with a 4.7l from another engine. from what I have read, they have fit the nice price to performance area. once the ecu figures out what you did, the numbers will start to settle down though. maybe ill be lucky and get 14mpg...... one thing is for sure, you will have a "snappier" acceleration.

I took the short 4 inch long tube that connects the air box to the headlight for the air. the moment I did that the engine awoke from its sleep. and yes, it is sucking in the air from the engine bay currently, although it is no issue in the winter, summer may be an issue if not on the highway.

LongIslandKK · **Joined:** Mon Jan 19, 2015 2:36 pm **Posts:** 18