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Spark Plug

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Old 05-29-2015 | 10:28 PM
  #31  
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Originally Posted by Firestorm500
I wonder why the difference between '92 and '93?
Yeah. Why does Chumpion go up 3 heat ranges while NGK stays the same heat range and just changes the tip of the plug?
Last edited by cruiser54; 05-29-2015 at 10:32 PM.
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Old 05-30-2015 | 12:39 AM
  #32  
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Originally Posted by CCKen
Lipstick, powder, and paint, makes a lady what she ain't.
haha now that's funny
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Old 05-30-2015 | 03:02 AM
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Originally Posted by cruiser54
Yeah. Why does Chumpion go up 3 heat ranges while NGK stays the same heat range and just changes the tip of the plug?
Maybe the Champion plugs were too cold, which leads to incomplete combustion, power loss, and fouling.
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Old 05-30-2015 | 06:58 AM
  #34  
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Originally Posted by CCKen
Lipstick, powder, and paint, makes a lady what she ain't.
Ok, that's funny.
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Old 05-30-2015 | 07:44 AM
  #35  
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Read through all of this, then click over to "Sparkplug Handbook".


http://dodgeram.info/Engine-Gas/Spar...park_plugs.htm
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Old 05-30-2015 | 08:49 AM
  #36  
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Originally Posted by CCKen
^ is this a question? If it is, the answer is no.

I have bought three sets of plugs in the last 11 years.

One set in my Ranger, 140K miles and was still strong when I sold it.

One set in my MJ, now 70K miles and still the plugs are running strong.

One set in my new, yet to be installed, engine.




And yet......I come to these forums and read, you guys **** and ***** and moan.....this plug that plug..........yada yada......
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Old 05-30-2015 | 08:56 AM
  #37  
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Originally Posted by CCKen
Your choice but I think you should stick with Champions and inspect/change them about every 20,000 miles.


Kit? Don't forget cap and rotor. I recommend Echlin parts from NAPA. Cap and rotor should be a matched set.
thank you ... i will go with champions
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Old 05-30-2015 | 09:02 AM
  #38  
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Originally Posted by mschi772
Agreed. Don't do iridium on a stock system--keep it copper. I second the recommendation for Echlin cap and rotor from NAPA.
thanks i will
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Old 05-30-2015 | 09:06 AM
  #39  
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Originally Posted by Firestorm500
Maybe the Champion plugs were too cold, which leads to incomplete combustion, power loss, and fouling.
That's what happened when I was into Datsuns. Chumpion went from 9s to 12s when NGK stayed at their 6 at that time.

Maybe Chumpion has issues with getting their plugs correct in the beginning?
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Old 05-30-2015 | 10:11 AM
  #40  
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I have been working on engines since I was 10. The only plug I have ever had to fail was Champion. Not just one. Multiple plugs many times. Just a short time after installation.

Not suspecting the plug at all, I don't know how much time and money I spent trying to chase down the cause of what was happening. It would turn out to be a not very old Champion plug. Sometimes two or three on the same engine. Sometimes even the replacements were bad.

So all you Champion lovers can sleep on your Champion bed sheets, wear your Champion jackets and hats, plaster your car with Champion stickers, and enjoy your Champion toilet paper for all I care.

I, for one, am not going back. Been bitten too many times. I'm just trying to save someone else the trouble I went through.
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Old 05-30-2015 | 11:22 AM
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Originally Posted by Firestorm500
I have been working on engines since I was 10. The only plug I have ever had to fail was Champion. Not just one. Multiple plugs many times. Just a short time after installation.

Not suspecting the plug at all, I don't know how much time and money I spent trying to chase down the cause of what was happening. It would turn out to be a not very old Champion plug. Sometimes two or three on the same engine. Sometimes even the replacements were bad.

So all you Champion lovers can sleep on your Champion bed sheets, wear your Champion jackets and hats, plaster your car with Champion stickers, and enjoy your Champion toilet paper for all I care.

I, for one, am not going back. Been bitten too many times. I'm just trying to save someone else the trouble I went through.
We quit using them at the dealership also.
Bosch Platinums caused me the same type of headaches you describe.
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Old 05-30-2015 | 03:32 PM
  #42  
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I switched to NGK ZFR5N plugs in my '99 years ago.


NGK plugs for the early 4.0 motors is uncharted waters for me so I don't say anything about them.
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Old 05-30-2015 | 04:42 PM
  #43  
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Renix and early HOs used FR5.

HOs used FR5-1

An upgrade for the FR5s is the FR5GP

In that order below:
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Last edited by cruiser54; 05-30-2015 at 04:56 PM.
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Old 05-30-2015 | 10:19 PM
  #44  
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Originally Posted by CCKen
I switched to NGK ZFR5N plugs in my '99 years ago.


NGK plugs for the early 4.0 motors is uncharted waters for me so I don't say anything about them.
I'm pretty sure I put NGK iridium in my '87 RENIX 8 years and 90,000 miles ago. Never misses a beat.

I know my '92 has them.
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Old 05-31-2015 | 01:02 AM
  #45  
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Originally Posted by Firestorm500
I'm pretty sure I put NGK iridium in my '87 RENIX 8 years and 90,000 miles ago. Never misses a beat.

I know my '92 has them.
Well, pull one out and give me the part number then.
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