Generation III External Engine LS1 | LS6 | Bolt-Ons | Intakes | Exhaust | Ignition | Accessories
Sponsored by:
Sponsored by:

Anyone ever tried Rapidfire plugs?

Thread Tools
 
Search this Thread
 
Old Apr 2, 2002 | 01:54 PM
  #1  
C5XTASY's Avatar
Thread Starter
Launching!
 
Joined: Jan 2002
Posts: 224
Likes: 0
From: Monticello, MN
Default Anyone ever tried Rapidfire plugs?

I'm thinking of trying the platinum electrode tip Rapidfires. I've read some test reports on Rapidfires and they appear to do what they claim as far as smoothing the idle, reducing misfires, etc. With them, worrying about the pucks coming off the stock plugs would be a thing of the past. Also, the platinum tips should allow long life. Anyone have any general experience with Rapidfires of any kind? Thanks!
Ed
Reply
Old Apr 2, 2002 | 03:59 PM
  #2  
WILWAXU's Avatar
TECH Senior Member
20 Year Member
iTrader: (6)
 
Joined: Nov 2001
Posts: 14,378
Likes: 1
From: League City, TX
Default Re: Anyone ever tried Rapidfire plugs?

Most people say not to use platinum tip sparkplugs on a high performance engine.

I suggest going with a set or NGK TR55. They work great!
Reply
Old Apr 3, 2002 | 06:33 AM
  #3  
So Slow's Avatar
10 Second Club
iTrader: (2)
 
Joined: Nov 2001
Posts: 689
Likes: 0
From: DeRidder La.
Default Re: Anyone ever tried Rapidfire plugs?

</font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by C5XTASY:
<strong>I'm thinking of trying the platinum electrode tip Rapidfires. I've read some test reports on Rapidfires and they appear to do what they claim as far as smoothing the idle, reducing misfires, etc. With them, worrying about the pucks coming off the stock plugs would be a thing of the past. Also, the platinum tips should allow long life. Anyone have any general experience with Rapidfires of any kind? Thanks!
Ed</strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">I'm running Rapidfire #8's in my car right now or I should say once I get it back with the new engine in it..Before the motor broke I installed them in the old one and the car ran great..The #8's are one step cooler then stock and to me compare themselves to the NGK TR6...

They are a copper based plug...
Reply
Old Apr 3, 2002 | 06:57 AM
  #4  
C5XTASY's Avatar
Thread Starter
Launching!
 
Joined: Jan 2002
Posts: 224
Likes: 0
From: Monticello, MN
Default Re: Anyone ever tried Rapidfire plugs?

</font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by So Slow:
[/qb]</font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">I'm running Rapidfire #8's in my car right now or I should say once I get it back with the new engine in it..Before the motor broke I installed them in the old one and the car ran great..The #8's are one step cooler then stock and to me compare themselves to the NGK TR6...

They are a copper based plug...[/QB][/QUOTE]

Do you happen to know what the number of the Rapidfire plug, with a heat range equivalent to the stock plug, is? Thanks!
Ed
Reply
Old Apr 3, 2002 | 08:25 AM
  #5  
Shaner's Avatar
Teching In
 
Joined: Nov 2001
Posts: 28
Likes: 0
From: DFW
Default Re: Anyone ever tried Rapidfire plugs?

There are two Rapid Fire #8 plugs available.
The 1st design (Blue #8 on the box) is cooper and is factory gapped at .035 and if opened to .045, will work.
(a friend put over 35 bottles of juice and some 10K miles on these without any problems)

The better choice is the (Red #8 on the box) #8 plug. They work very well and are in the same heat range as the NGK TR6's. They do not have a "puck" like the stock plugs.

The #12 is the "stock replacement"
Reply
Old Apr 3, 2002 | 07:04 PM
  #6  
ringer's Avatar
Staging Lane
 
Joined: Jan 2002
Posts: 73
Likes: 0
From: Carolina Beach NC
Default Re: Anyone ever tried Rapidfire plugs?

I am using the Rapidfire #12 plug now. I have a 2001 Z with only a SLP Lid as a mod. Currently there is 7000 miles on the clock. At 3000 miles I put in NGK TR55 plugs gapped at 0.55. I immediately had "thottle ping".
Thinking I broke a plug or a wire, I re-installed new NGK plugs and new stock wires later that week. I gapped this set at 0.59 and still had the throttle pinging. I left things alone and lived with it until a few weeks ago when I read a post where the Rapidfires had helped someone with their pinging problem.
I installed the Rapidfires and the pinging is gone. The NGKs are a great plug (smooth idle etc.) but just did not seem to work for my application. I do not know why the Rapidfires would cure my pinging. I know they have a platinum tip, are the stock heat range etc.
Good luck on your choice.
Mike
Reply
Old Apr 3, 2002 | 09:40 PM
  #7  
C5XTASY's Avatar
Thread Starter
Launching!
 
Joined: Jan 2002
Posts: 224
Likes: 0
From: Monticello, MN
Default Re: Anyone ever tried Rapidfire plugs?

It appears #12 is the stock heat range platinum Rapidfire that I want. What should the gap be set at? Thanks!
Ed
Reply
Old Apr 4, 2002 | 06:38 AM
  #8  
So Slow's Avatar
10 Second Club
iTrader: (2)
 
Joined: Nov 2001
Posts: 689
Likes: 0
From: DeRidder La.
Default Re: Anyone ever tried Rapidfire plugs?

</font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by C5XTASY:
<strong>It appears #12 is the stock heat range platinum Rapidfire that I want. What should the gap be set at? Thanks!
Ed</strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">I would open them up to .039..I run the #8's in the blue box to clear up the thread above and I have them gapped at .039 and all is well..But yes the #12's are the stock heat ranged plug...
Reply
LS1 Tech Stories

The Best V8 Stories One Small Block at Time

story-0

Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin

 Verdad Gallardo
story-1

6 Common C5 Corvette Failures and What's Involved In Repairing Them

 Pouria Savadkouei
story-2

Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

 Verdad Gallardo
story-3

Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

 Pouria Savadkouei
story-4

Top 10 Most Powerful Chevy Trucks Ever Made!

 
story-5

Hennessey's New Supercharged Silverado ZR2 Has 700 HP

 Verdad Gallardo
story-6

Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes

 Verdad Gallardo
story-7

Awesome K5 Blazer Restomod Comes With C7 Corvette Power

 Verdad Gallardo
story-8

10 Camaros You Should Never Buy

 
story-9

10 LS Engine Myths That Refuse to Die

 Verdad Gallardo




All times are GMT -5. The time now is 05:58 AM.

story-0
Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin

Slideshow: This heavily modified 1971 Camaro mixes classic muscle car styling with a fifth-generation Camaro interior and modern LS3 power.

By Verdad Gallardo | 2026-05-12 18:06:42


VIEW MORE
story-1
6 Common C5 Corvette Failures and What's Involved In Repairing Them

Slideshow: From wobbling harmonic balancers to failed EBCMs, these are the issues that define long-term C5 ownership and what repairs typically involve.

By Pouria Savadkouei | 2026-05-07 18:44:57


VIEW MORE
story-2
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

Slideshow: A modern Camaro transformed into a retro icon, this limited-run "Bandit" build blends nostalgia with brute force in a way few revivals manage.

By Verdad Gallardo | 2026-04-21 13:57:02


VIEW MORE
story-3
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

Slideshow: Cadillac didn't just crash the high-performance luxury vehicle party, it showed up loud, supercharged, and occasionally a little unhinged...

By Pouria Savadkouei | 2026-04-16 10:05:15


VIEW MORE
story-4
Top 10 Most Powerful Chevy Trucks Ever Made!

Slideshow: Top ten most powerful Chevy trucks ever made

By | 2026-03-25 09:22:26


VIEW MORE
story-5
Hennessey's New Supercharged Silverado ZR2 Has 700 HP

Slideshow: Hennessey has turned the Silverado ZR2 into a 700-hp off-road monster with supercharged V8 power and a limited production run.

By Verdad Gallardo | 2026-03-24 18:57:52


VIEW MORE
story-6
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes

Slideshow: A one-off sports car that looks like a vintage Italian exotic-but hides a C6 Corvette underneath-just sold for the price of a new mid-engine Corvette.

By Verdad Gallardo | 2026-03-23 18:53:41


VIEW MORE
story-7
Awesome K5 Blazer Restomod Comes With C7 Corvette Power

Slideshow: A heavily reworked 1972 K5 Blazer swaps its off-road roots for a low-slung street-focused build with modern V8 power.

By Verdad Gallardo | 2026-03-09 18:08:45


VIEW MORE
story-8
10 Camaros You Should Never Buy

Slideshow: There are thousands of used Camaros on the market but we think you should avoid these 10

By | 2026-02-17 17:09:30


VIEW MORE
story-9
10 LS Engine Myths That Refuse to Die

Slideshows: Which one of these myths do you believe?

By Verdad Gallardo | 2026-01-28 18:10:11


VIEW MORE