Suggestions for 02 WJ Overland - JeepForum.com
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post #1 of 20 Old 01-06-2012, 12:06 PM Thread Starter
Ikelovey
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Wj Suggestions for 02 WJ Overland

Hello All,
I am a recent return to the Jeep World (my last was a 95 GrndChrkee Laredo I-6, before that 91 Wrangler 4). Just picked up a 2002 Overland w/ Quadradrive (77k m) and, of course, love it. I am soliciting suggestions for modifications and assistance in refamiliarizing myself with the JEEP brand.
What order should I start in? Engine or Suspension, Tires/Wheels or Transmission?

Also, the brakes on this thing suck!
Just had it in the shop this week, they recut the front rotors and they still squeal and pulse on moderate pressure...is this to be expected from Chrysler
-probably the first of many gripes.
I mostly wanted to introduce myself and say hello to all.
My background in career is in welding with a family history in the Auto trade.
Look forward to hearing from all of you and sharing ideas.

Regards,
-IKE
in West Chester, PA.

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post #2 of 20 Old 01-06-2012, 12:09 PM
Kolak
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Welcome to the forum! There's much you can do to improve the performance and the reliability of your WJ.

Sounds like the brakes have top priority - I'm running a special sale on my highly recommended Stillen/DBA rotors and pads. You'll see that many people are happily running them here on the forum. I also have the factory Akebono front caliper upgrade should your WJ have the original Teves calipers up front.

Send me a PM with your email address and I'll send you all the information.

Kolak Performance and Offroad
Member: Specialty Equipment Market Association
Telephone: 480 998-3661

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post #3 of 20 Old 01-06-2012, 01:13 PM
thisguyhasadd2
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lol fair question, click the their name and a menu should appear then send private message.

Lets see some pics of the jeep! 77k thats so low, how much did you pay?

2002 Overland - 4" rc -255/75/17/Jk Moabs
1982 Yamaha XT200J- dead, rebuild winter
Colorado Jeep Club Member#259
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post #4 of 20 Old 01-06-2012, 10:02 PM
gyver_wi
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I bought an 02 Overland Dec 14, 2011, with 70k, and less than 30 on a Chrysler replaced 4.7 long block. It's bone stock, beautiful, and I love it but I too am looking for upgrade advice, for after I do the rear brakes, investigate the barely audible howl coming from the rear trans axle (I think), clean the IAC, replace TPS, blend doors etc.
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post #5 of 20 Old 01-07-2012, 07:04 AM
hammerz71
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I bought my '02 Overland in '06 with 61k on the clock for $11,250. For the first two years it remained unmodded in any way except for a premium drop-in air filter. I was putting my mod $ into my truck at the time and the Jeep was/is my daily driver.

I found with the 4.7 HO I have no real need for performance enhancements, but had put a BB and larger tires on it in '08. When I picked up a larger winch for my truck, the Jeep got the old one. Bad coils and isolators led me to sell off the BB and upgrade to OME HD coils. Other than that just a few home-made mods like a light bar and fishing rod holder.

As repairs are needed I'll upgrade/mod as always have believed a repair should be a mod (not use the same factory part but instead choose a better, 3rd party component if there is one available). But other than that, as long as my WJ continues to be my daily driver, I can't see doing much to it as far as adding more height, larger tires, etc...

2002 Jeep Grand Cherokee Overland
Old Man Emu HD coils, 265/65/17 Nitto Terra Grapplers, Warn M8000, home made light bar, Cepek 130 watt lights, Hella 500s

CURRENTLY REBUILDING THE 4.7 HO ENGINE
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post #6 of 20 Old 01-07-2012, 09:33 AM
Serr8edEdge
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I bought my 04 special edition back in february of 11. There one thing I've learned in my few months of wheeling in it. Body armor should be the FIRST thing u buy if u plan to take it off road. I made the mistake of buying a k&n intake first. Granted I LOVE the intake but now ive got some nasty dents that are gonna have to be popped and painted. But if performance is what ur looking for I would say get a k&n intake, throttle body spacer, and maybe even a kolak 3in magna flow exhaust system, including the high flow cat. U should be looking at around 30 noticeable horses with that setup.

2004 WJ 4.7L, K&N FIPK Cold Air Intake, Kolak 3" exhaust system, 2" BB w/ Bilstein 5100 series shocks
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post #7 of 20 Old 01-07-2012, 11:31 AM
thisguyhasadd2
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lol ^

2002 Overland - 4" rc -255/75/17/Jk Moabs
1982 Yamaha XT200J- dead, rebuild winter
Colorado Jeep Club Member#259
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post #8 of 20 Old 01-07-2012, 01:32 PM
s2gots
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Quote:
Originally Posted by hammerz71
I bought my '02 Overland in '06 with 61k on the clock for $11,250. For the first two years it remained unmodded in any way except for a premium drop-in air filter. I was putting my mod $ into my truck at the time and the Jeep was/is my daily driver.

I found with the 4.7 HO I have no real need for performance enhancements, but had put a BB and larger tires on it in '08. When I picked up a larger winch for my truck, the Jeep got the old one. Bad coils and isolators led me to sell off the BB and upgrade to OME HD coils. Other than that just a few home-made mods like a light bar and fishing rod holder.

As repairs are needed I'll upgrade/mod as always have believed a repair should be a mod (not use the same factory part but instead choose a better, 3rd party component if there is one available). But other than that, as long as my WJ continues to be my daily driver, I can't see doing much to it as far as adding more height, larger tires, etc...
I have an 02 overland also, was thinking of a BB, but I believe my isolators are shot too,118k... What height did you go to with the springs? Which shocks and tire size??? Any rubbing issues with your setup and how's it ride for a DD?
(not trying to hijack, but i believe this info will help the OP too!!)
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post #9 of 20 Old 01-07-2012, 05:09 PM
Serr8edEdge
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Quote:
Originally Posted by thisguyhasadd2
lol ^
Whats funny?

2004 WJ 4.7L, K&N FIPK Cold Air Intake, Kolak 3" exhaust system, 2" BB w/ Bilstein 5100 series shocks
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post #10 of 20 Old 01-07-2012, 05:18 PM
thisguyhasadd2
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30 seems real high and the spacers are junk, spend that on the ported throttle body

2002 Overland - 4" rc -255/75/17/Jk Moabs
1982 Yamaha XT200J- dead, rebuild winter
Colorado Jeep Club Member#259
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post #11 of 20 Old 01-07-2012, 08:13 PM
Serr8edEdge
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U think? I know I get 12-15 with my k&n alone and supposedly another ten or so with the 3 inch exhaust. I haven't bought the exhaust yet though, hopefully tax season will treat me good this year I've never done any research on the ported throttle body what's the deal on those?

2004 WJ 4.7L, K&N FIPK Cold Air Intake, Kolak 3" exhaust system, 2" BB w/ Bilstein 5100 series shocks
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post #12 of 20 Old 01-07-2012, 08:20 PM
Wheelin98TJ
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12-15 from a k&n air filter is unrealistic.

1.2-1.5 would be more reasonable.
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post #13 of 20 Old 01-07-2012, 08:52 PM
Serr8edEdge
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forumrunner_20120107_205101.jpg

2004 WJ 4.7L, K&N FIPK Cold Air Intake, Kolak 3" exhaust system, 2" BB w/ Bilstein 5100 series shocks
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post #14 of 20 Old 01-08-2012, 05:04 AM
hammerz71
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Quote:
Originally Posted by s2gots View Post
I have an 02 overland also, was thinking of a BB, but I believe my isolators are shot too,118k... What height did you go to with the springs? Which shocks and tire size??? Any rubbing issues with your setup and how's it ride for a DD?
(not trying to hijack, but i believe this info will help the OP too!!)
On an Up Country WJ you'll get about the same out of the OME springs as you do with 2" spacers. So you'd see about 3" on non Up Country WJs.

I have relatively inexpensive shocks (Pro Comp ES3000s) which are Tenneco (Monroe/Rancho) made, generic, white off-road shocks. I like the ride, it's firm - maybe too firm for some, but since I've had seven full-size 4x4 trucks in my life I kinda like that stiff ride. Some "high dollar" shocks like Bilsteins might soften it up a bit if you don't like a stiff ride.

No rubbing whatsoever with 265/65/17 tires and would probably fit 265/70/17s without rubbing I would guess. When I put it on, the weight of the winch used to pull down the front a good 3/4" but with the OME springs the front doesn't move much at all, maybe 1/8" if even that.

Whichever way you go (spacers or springs) do the isolators it will make a HUGE difference...

2002 Jeep Grand Cherokee Overland
Old Man Emu HD coils, 265/65/17 Nitto Terra Grapplers, Warn M8000, home made light bar, Cepek 130 watt lights, Hella 500s

CURRENTLY REBUILDING THE 4.7 HO ENGINE
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post #15 of 20 Old 01-08-2012, 05:20 AM
hammerz71
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Quote:
Originally Posted by Serr8edEdge View Post

I put myself through college in part by working at a performance shop and let me tell you - you can wipe your a$$ with that sheet of paper!

Now I'm not poor-mouthing K&N, but their "results" are better than any I've ever personally seen on a dyno. I have a K&N drop-in in my WJ and a K&N cone in my true CAI in my truck and they DO provide some benefit, especially when combined with other mods, but don't kid yourself to thinking you are seeing the kind of results on that sheet of paper. You want to know the truth - then go put your Jeep on a dyno.
A drop-in replacement will give about 1-3 more RWHP over a stock, paper filter and a CAI with large cone will give about 5-9 more RWHP by virtue of it's greater surface area.

Throttle body spacers DO NOTHING on a modern throttle body. They had a benefit when vehicles used TBI (Throttle Body Injection) but now that MFI (Multi-point Fuel Injection) is used, the fuel is introduced at the intake runners instead of on top of the manifold like carburetor days. Throttle Body Spacers are dinosaurs today...

2002 Jeep Grand Cherokee Overland
Old Man Emu HD coils, 265/65/17 Nitto Terra Grapplers, Warn M8000, home made light bar, Cepek 130 watt lights, Hella 500s

CURRENTLY REBUILDING THE 4.7 HO ENGINE
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