WOW! AC Delco Rapidfires
Thread Starter
Le Mans Master
Joined: Dec 2000
Posts: 5,245
Likes: 25
From: Blue Ridge Georgia
WOW! AC Delco Rapidfires
Installed a set AC Delco Rapidfires today and WOW what a difference. Well worth the money and effort. Anytime I can do something that I can feel a power increase I get real fired up.
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Le Mans Master
Joined: May 1999
Posts: 6,692
Likes: 29
From: Texas
Re: WOW! AC Delco Rapidfires (VettePower)
You can get them at WalMart. Nice thing is they are now platinum also. Best of everything.
.060 sure is wide. Sure you need to go that wide. DUI advised maybe going up to .055 max with their hot coil and module. .050 without much question.
.060 sure is wide. Sure you need to go that wide. DUI advised maybe going up to .055 max with their hot coil and module. .050 without much question.
Racer
Joined: Jul 2001
Posts: 264
Likes: 0
From: Maricopa AZ
Re: WOW! AC Delco Rapidfires (Paul 75 L82)
Mine are AC Delco Rapidfires #2. The part number is simple AC#2 I have the 350 and the .045 gap is correct so no neep to regap plugs. Mine cost 34.32 at NAPA. I just installed them two days ago and work great. :D
Burning Brakes
Joined: Jul 2000
Posts: 1,118
Likes: 0
Re: WOW! AC Delco Rapidfires (Zane)
Does anyone happen to know if the 'platinum' Rapid Fire replaced the original ones? All I've seen lately are the platinum ones. The packaging on the twin-packs say platinum, but the ones that are packed 8 per box don't (they both have the same small center electrode and same plug number).
Le Mans Master
Joined: May 1999
Posts: 6,692
Likes: 29
From: Texas
Re: WOW! AC Delco Rapidfires (Chris81)
I emailed Delco about the platinum vs. non-platinum. Told that they went to all platinum about a year ago. Did not say anything about the packaging difference though. I would buy the package marked platinum just to be safe.
Burning Brakes
Joined: Jul 1999
Posts: 1,013
Likes: 0
From: Austin TX
Re: WOW! AC Delco Rapidfires (Paul 75 L82)
You say you felt a difference, so I was wondering how old/what condition the old plugs were in???
Although if they are 1/4" shorter I will probably get them anyway(need the header clearance)
Although if they are 1/4" shorter I will probably get them anyway(need the header clearance)
Race Director
Joined: Apr 2000
Posts: 17,676
Likes: 201
From: Who says "Nothing is impossible" ? I've been doing nothing for years.
Re: WOW! AC Delco Rapidfires (AlwaysWave)
What's the difference between #2 and # 3? One hotter/colder than the other?
Heel & Toe
Joined: Jul 2001
Posts: 19
Likes: 0
From: Alamogordo NM USA
Re: WOW! AC Delco Rapidfires (Paul 75 L82)
On the suject of RFs, I am curious to know if anyone uses them on their ZZ4 and how "cold" they are to try and minimize pinging....I was using the RF5 and swapped over to NGKs...
Thread Starter
Le Mans Master
Joined: Dec 2000
Posts: 5,245
Likes: 25
From: Blue Ridge Georgia
Re: WOW! AC Delco Rapidfires (Pete79L82)
Someone asked what condition were my old plugs, well they looked very good. All plugs except 7 & 8 were clean with a light tan or grey look. 7 & 8 were slightly carboned up. Old plugs were 1 year old. One of things that I think help performance is that the Rapidfires are longer on the part inside the motor than the standard Ac plug. Maybe this gets the fire to a better location that the stock plug. My motor runs real good all the time. I could feel inprovement on these plugs. They are worth the money.