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Spark plugs for HEMI

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  #1  
Old 03-24-2009, 05:05 AM
CARRASCO CARRASCO is offline
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Default Spark plugs for HEMI

I've been searching threads for info on spark plugs for my HEMI. I have been sticking to NGK, mainly because of the rumors that the HEMIs are "burning" up the performance spark plugs.I'm seriously considering goint to a performance ingintion and wires, but not if I can't complete the install with REALLY GOOD plugs.Any serious comments or recommendations?(not interested in product bashin', or chest thumpin')
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Old 03-24-2009, 07:16 AM
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I put NGK 5306s on mine 18 months and 13K ago (yeah, not a lot of miles). She had 86K at the time and they'd never been changed. Still runs strong and gets decent mileage. Lots of other changes, too, so who can say what contributed. Don't know about the Hemis "burning up" plugs, but they don't like platinums for some reason.

I'm considering new wires this summer. Not sure what to use. I know I won't use "shorties". Haven't researched in a while, but I believe MSD 8.2mm is what I'll get.
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Old 03-24-2009, 07:49 AM
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When I changed mine I went with the factory Champions copper plus. That was the advice I got from other HEMI guys on here. It was a toss up between those and the NGK's.
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Old 03-25-2009, 04:09 PM
CARRASCO CARRASCO is offline
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Default keep 'em commin...

thanx for the input.
Anyone else got any experience with aftermarket plugs?
I think if I keet the Champions or NGKs, then why get the cablers and coils (coils get espensive). But if I fing aftermarket performance plugs, then got for the whole ignition system.
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Old 03-25-2009, 04:13 PM
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well i have bosch 4+ platniums and accell wires (advanced auto stuff) havent had any issues yet. however ive only had them in for about 2000 miles. trucks got 95k on it, so i guess ill see how well they do in the long run.
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Old 03-25-2009, 09:48 PM
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I'll be switching to the NGK's when mine come due!!! I have always hated Champion plugs!!
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Old 03-25-2009, 09:59 PM
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Quote:
Originally Posted by lxman1 View Post
I'll be switching to the NGK's when mine come due!!! I have always hated Champion plugs!!
why have you hated the champion plugs?? it is a factory plug ...if it stunk they wouldny use them . just wanted to know why you disliked them?
my 04 hemi is commin up on 30k and i will be replacing plugs soon with the champion but wanted to hear why you dont like them
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Old 03-25-2009, 10:01 PM
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There is no such thing as a performance spark plug. Any plug with more than one electrode is a gimmick.

Find a heat range the motor likes and you'll have your "performance" plug at a whopping cost of $1.50 a pop.
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Old 03-25-2009, 10:15 PM
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Quote:
Originally Posted by ramhunter1 View Post
why have you hated the champion plugs?? it is a factory plug ...if it stunk they wouldny use them . just wanted to know why you disliked them?
my 04 hemi is commin up on 30k and i will be replacing plugs soon with the champion but wanted to hear why you dont like them
I've bought a lot of Champion plugs in my day...never bought a good one. Just had to change the Champions in my JD -- they'd only been in there about sixteen hours of engine time. The Boschs I put in fired right up, an' I bet they will next spring, too. The Champions in my Kawasaki lasted less than a month. The factory uses them 'cause they're cheap, not 'cause they're good. It's a maintenance item, so there are no warranty issues.
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Old 03-25-2009, 10:30 PM
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Yep, They do not last. 30K miles for a set of pugs on a modern day engine is crazy. They should at least last 60K.

I have used them in several other applications and they just do not perform/last as they should.
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Old 03-26-2009, 12:25 AM
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Quote:
Originally Posted by lxman1 View Post
Yep, They do not last. 30K miles for a set of pugs on a modern day engine is crazy. They should at least last 60K.

I have used them in several other applications and they just do not perform/last as they should.
thats all they have to last on the hemi. 30000 and the factory calls for replacement. Stock champions from napa and change em every 30000 mi is the way to go. or you can spend alot more per plug, and still change em out at 30000. i did champions on mine and my buddys' 06.
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Old 03-26-2009, 12:50 AM
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ok so i know that the hemi/poly (lol) has 16 spark plugs. i dont really understand it but whatever. my question is when i was looking at spark plugs on line it reccomended different plugs for the "waste spark ignition". do i need different plugs? or will regular plugs work all the way around?
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Old 03-26-2009, 06:01 AM
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My NGK iridium LZTR4AIX-11 have lasted 37K miles still giving good fuel economy and performance.
Great plug.
Al.
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Old 03-26-2009, 08:13 AM
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Quote:
Originally Posted by southernbnb View Post
ok so i know that the hemi/poly (lol) has 16 spark plugs. i dont really understand it but whatever. my question is when i was looking at spark plugs on line it reccomended different plugs for the "waste spark ignition". do i need different plugs? or will regular plugs work all the way around?
reg all the way around
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Old 03-26-2009, 08:32 AM
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Yeah reg all the way around. When I changed mine for the first time,I bought the truck used and changed the plugs right after I bought it, there were Champions under the coil packs and Bosch Platnum +4's on the wires I guess the previous owner didn't know there were plugs under the coil packs cuz you could tell the champs were original
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Old 03-26-2009, 02:08 PM
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The NGK 5306's are priced about the same as the Champions. I Run NGK's in my Mustang and have always run them in my older cars that I had, 71 Torino GT, 69 Road Runner 440 6bbl, 71 Camaro 388 stroker. Never fouled one or had one die early.
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Old 03-26-2009, 02:18 PM
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my buddy ran a hemicuda at the racetrack way back and his hemi would only run strong on autolites. anybody tried them?
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Old 03-26-2009, 04:37 PM
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They are a very good plug too, but the only ones that I saw listed for the Hemi are platinum plugs and the Hemi runs best on copper core.
This is one reason why I am going with NGK over Autolites actually. Well, that and I have heard good things about the NGKs in the Hemi and they worked well in my other vehicles.
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Old 03-26-2009, 05:29 PM
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I really need to change my plugs. I am at 69,000 on the original plugs. So they do last.

Edit: 9/14/09, 77,000 and still going
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Old 09-14-2009, 12:15 PM
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Default Champion Spark Plugs

I have had the same set of Champion Copper Plus spark plugs for over 80,000 miles and still running great. Shouldn't that speak for itself. Those who like NGK or Bosch think that if they cost more they must be better, I don't think so. Also, you are supporting companies outside of the United States. Champion has been around for a very long time with a positive reputation. The manufacture use Champion because they are reliable in quality and a great value.
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Old 09-14-2009, 12:15 PM
 
 
 
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05, 1500, change, dodge, hemi, ngk, nitro, performance, photos, plug, plugs, ram, recommendation, replacement, spark, sparkplug

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