What Lies Beyond Jeep Club

General Chat => Tech Talk => Topic started by: ouchman on October 17, 2007, 05:03:12 PM

Title: tune up
Post by: ouchman on October 17, 2007, 05:03:12 PM
i wanna do cap, rotor, wires,and plugs
any sugestions on plugs? its the 4.0l
i ask cause the suzuki motor in my tracker runs best on ngk,
but my buddies sami runs best with bosch
Title: Re: tune up
Post by: TechJeeper on October 17, 2007, 05:25:36 PM
cheap plugs!  Champion plugs are what I run, the cheapest Walmart sells.  Jeeps dont like expensive plugs.

Be careful not to break the bolts on the rotor, there is a reason mine is being held on by 2 cotter pins and a few zip ties  :oops:
Title: Re: tune up
Post by: TechJeeper on October 17, 2007, 05:39:10 PM
Champion Truck Plugs. part # 4412 to be exact
Title: Re: tune up
Post by: Nosilla on October 17, 2007, 06:12:56 PM
X2 on what Cody said.
Title: Re: tune up
Post by: Mudviper on October 17, 2007, 09:54:49 PM
Yeah.. I have heard also that Champions work best on the 4.0
Title: Re: tune up
Post by: astrogiblet on October 17, 2007, 09:59:09 PM
x4 on what Cody said. I run them in mine and they are great. I posted a big thread on GL4x4 about this, and it basically came down to don't waste your money on anything more then the cheapest.

I think the champion truck plugs might be a little more expensive (when I bought them Autozone was having a deal on them for 99 cents a piece), but they are supposedly more resistant to issues and better for offroading and all the jazz (hype hype hype).. But I like 'em.



-Brandon
Title: Re: tune up
Post by: Paul Hittie on October 18, 2007, 08:41:21 AM
I ran all Bosch ignition parts on my YJ, including the Platinum-tipped, split-fire spark plus.  Ran good before I installed them, ran like $1,000,000 afterwards.  Still running all factory components in the LJ.
Title: Re: tune up
Post by: jeepfan1974 on October 18, 2007, 09:35:04 AM
yeah i have had the champ truck plugs i a few 4.0's also and they have been great .    thats what is in the wifes zj for the past 3 years now
Title: Re: tune up
Post by: JEEPSALESGUY on October 18, 2007, 10:33:39 PM
I've always been told by my techs (mopar factory trained) that the champion plug is the best for mopar. I tried a few years ago putting in a expensive plug, but I ended up putting my old plugs (champion) back in cause it ran better!
Title: Re: tune up
Post by: astrogiblet on October 19, 2007, 01:09:16 AM
Quote from: "phittie1100"I ran all Bosch ignition parts on my YJ, including the Platinum-tipped, split-fire spark plus.  Ran good before I installed them, ran like $1,000,000 afterwards.  Still running all factory components in the LJ.


I've heard lots of bad things about the multi tipped plugs. I used the quad tips for a while on my old Intrepid, and didn't really notice any difference. I've had Autozone people tell me everything from those are the best plugs ever, to they will screw up the air circulation within your engine and they will cause decreased performance!


-Brandon