Re: AC DELCO RAPID FIRE PLUGS, WORTH THE $ ?
[Re: Magnumguy]
#2484627
04/18/18 02:32 PM
04/18/18 02:32 PM
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Joined: Jan 2003
Posts: 21,065 Niles , Ohio
therocks
oh wait.but hey.lets see.oh yeah.
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oh wait.but hey.lets see.oh yeah.
Joined: Jan 2003
Posts: 21,065
Niles , Ohio
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Ran regular ACs in Gms at work.Mopars we ran and I run either Autolites or NGKs.NGKs in my 65 run great and its 12.5 compression street driven.Rocky
Chrysler Firepower
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Re: AC DELCO RAPID FIRE PLUGS, WORTH THE $ ?
[Re: Magnumguy]
#2484649
04/18/18 03:15 PM
04/18/18 03:15 PM
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Joined: Jul 2011
Posts: 954 Chicago
PurpleBeeper
super stock
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super stock
Joined: Jul 2011
Posts: 954
Chicago
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No, they are not worth the extra money. Marketing hype
70 Roadrunner convt. street car
440+6, NOS, 4-spd, SS springs
'96 Mustang GT convt. street car
'04 4.6 SOHC, NOS, auto, lowered
"Officer, that button is for short on-ramps"
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Re: AC DELCO RAPID FIRE PLUGS, WORTH THE $ ?
[Re: PurpleBeeper]
#2484726
04/18/18 06:02 PM
04/18/18 06:02 PM
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Joined: Dec 2004
Posts: 10,552 Rittman Ohio
fourgearsavoy
I Live Here
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I Live Here
Joined: Dec 2004
Posts: 10,552
Rittman Ohio
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I run NGK or Denso plugs in my Mopars They seem to last forever and I get them cheap from work Gus
64 Plymouth Savoy 493 Indy EZ's by Nick at Compu-Flow 5-Speed Richmond faceplate Liberty box Dana 60
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Re: AC DELCO RAPID FIRE PLUGS, WORTH THE $ ?
[Re: PurpleBeeper]
#2484727
04/18/18 06:07 PM
04/18/18 06:07 PM
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Joined: Jan 2003
Posts: 13,354 Marion, South Carolina [><]
an8sec70cuda
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 13,354
Marion, South Carolina [><]
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No, they are not worth the extra money. Marketing hype Get the correct plug for your motor, not the latest gimmick. I use NGKs normally, but have had good service from all different brands of conventional plugs.
CHIP '70 hemicuda, 575" Hemi, 727, Dana 60 '69 road runner, 440-6, 18 spline 4 speed, Dana 60 '71 Demon, 340, low gear 904, 8.75 '73 Chrysler New Yorker, 440, 727, 8.75 '90 Chevy 454SS Silverado, 476" BBC, TH400, 14 bolt '06 GMC 2500HD LBZ Duramax
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Re: AC DELCO RAPID FIRE PLUGS, WORTH THE $ ?
[Re: Magnumguy]
#2484778
04/18/18 08:05 PM
04/18/18 08:05 PM
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Joined: Jan 2003
Posts: 1,482 Lake Orion, MI
goldduster318
pro stock
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pro stock
Joined: Jan 2003
Posts: 1,482
Lake Orion, MI
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My opinion is the absolute best plugs are Iridium, but in reality they are quite pricey and also not too many people are driving a ton of miles on their classic mopar. So the only advantage would be the smaller electrode is somewhat less likely to misfire.
I doubt you'd notice a difference.
'70 Duster 470hp 340/T56 Magnum/8 3/4 3.23 Sure-Grip
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Re: AC DELCO RAPID FIRE PLUGS, WORTH THE $ ?
[Re: Magnumguy]
#2484876
04/18/18 11:15 PM
04/18/18 11:15 PM
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Joined: Dec 2014
Posts: 5,774 ohio
ruderunner
master
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master
Joined: Dec 2014
Posts: 5,774
ohio
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Basic Champion for my old stuff.
Angry white pureblood male
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Re: AC DELCO RAPID FIRE PLUGS, WORTH THE $ ?
[Re: Magnumguy]
#2484982
04/19/18 09:53 AM
04/19/18 09:53 AM
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Joined: Jan 2003
Posts: 21,065 Niles , Ohio
therocks
oh wait.but hey.lets see.oh yeah.
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oh wait.but hey.lets see.oh yeah.
Joined: Jan 2003
Posts: 21,065
Niles , Ohio
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Just dont get Bosch.Total s--t plugs in almost every car they were installed in.I cant say hw many sets I had to pull ecause they ran bad.Cant see how they still make them.Rocky
Chrysler Firepower
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Re: AC DELCO RAPID FIRE PLUGS, WORTH THE $ ?
[Re: PurpleBeeper]
#2485501
04/20/18 10:51 AM
04/20/18 10:51 AM
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Joined: Feb 2003
Posts: 21,318 Manitoba, Canada
DaytonaTurbo
Too Many Posts
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Too Many Posts
Joined: Feb 2003
Posts: 21,318
Manitoba, Canada
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No, they are not worth the extra money. Marketing hype Agreed. Also I have found in my experience that 95% of plugs get changed for no good reason (I'm guilty of this as well). Most can just be cleaned and reinstalled.
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Re: AC DELCO RAPID FIRE PLUGS, WORTH THE $ ?
[Re: dogdays]
#2486016
04/21/18 11:44 AM
04/21/18 11:44 AM
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Joined: Jan 2006
Posts: 8,162 USA
360view
Moparts resident spammer
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Moparts resident spammer
Joined: Jan 2006
Posts: 8,162
USA
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The Rapidfire plugs were developed to cut down on irregular misses by GM engineers who were doing a lot of emission testing and monitoring cylinder-by-cylinder. I believe there are a couple of SAE papers about this. So it is not all smoke and mirrors. R. I believe there is a US Patent Number on the Rapidfire spark plugs package that you can look up and read on Google’s Patent service. Patents usually have a “History of the Invention” section that is well worth reading and points out key past improvements in spark plugs.
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Re: AC DELCO RAPID FIRE PLUGS, WORTH THE $ ?
[Re: ruderunner]
#2486197
04/21/18 10:05 PM
04/21/18 10:05 PM
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Joined: Jan 2008
Posts: 3,886 Lost and Spaced
bboogieart
master
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master
Joined: Jan 2008
Posts: 3,886
Lost and Spaced
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Basic Champion for my old stuff. Me too.
I have mechanical Aptitude. I can screw up anything.
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Re: AC DELCO RAPID FIRE PLUGS, WORTH THE $ ?
[Re: bboogieart]
#2486199
04/21/18 10:14 PM
04/21/18 10:14 PM
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Joined: Dec 2004
Posts: 10,552 Rittman Ohio
fourgearsavoy
I Live Here
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I Live Here
Joined: Dec 2004
Posts: 10,552
Rittman Ohio
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Basic Champion for my old stuff. Me too. I don't even put Champion plugs in my lawnmower anymore If there is a better plug out there then why not use it Gus
64 Plymouth Savoy 493 Indy EZ's by Nick at Compu-Flow 5-Speed Richmond faceplate Liberty box Dana 60
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Re: AC DELCO RAPID FIRE PLUGS, WORTH THE $ ?
[Re: bboogieart]
#2488413
04/26/18 07:21 PM
04/26/18 07:21 PM
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Joined: Jan 2011
Posts: 4,785 Utah and Alaska
astjp2
master
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master
Joined: Jan 2011
Posts: 4,785
Utah and Alaska
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They work... Most champions I have changed were due to resistance being too high causing a miss, they use crappy resisters....and almost no one checks the resistance of their plugs with a meter. Tim
1941 Taylorcraft 1968 Charger 1994 Wrangler 1998 Wrangler 2008 Kia Rio 2017 Jetta
I didn't do 4 years and 9 months of Graduate School to be called Mister!
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