View Poll Results: Best Spark Plug??
Bosh Triple Platinum
4
6.35%
NGK
35
55.56%
AC Delco Platinum
21
33.33%
Other (please specify in reply)
3
4.76%
Voters: 63. You may not vote on this poll
Best spark plugs??
Registered User
Joined: Jul 2000
Posts: 1,428
From: Woodstock,Georgia
Originally posted by LPE Z convt
Ran NGKs until 4 days ago gapped at .050 ... Now i run autolite 103s gapped at .050.....
Ran NGKs until 4 days ago gapped at .050 ... Now i run autolite 103s gapped at .050.....
Registered User
Joined: Jan 2003
Posts: 719
From: Lafayette IN.
Originally posted by gb95zconv
The 103s are great for a nitrous app such as yours because they are 1 range colder than the stock plug. I would run the 104s if you dont have a power adder. BTW....why are you running the stock gap (.050) with a 150 shot....I would recommend dropping the gap to .038 - .040
The 103s are great for a nitrous app such as yours because they are 1 range colder than the stock plug. I would run the 104s if you dont have a power adder. BTW....why are you running the stock gap (.050) with a 150 shot....I would recommend dropping the gap to .038 - .040
I am setting the car up to run its best NA then i will spray it and then i may drop the gap to .045 .....
Last edited by LPE Z convt; Apr 7, 2004 at 04:54 PM.
Registered User
Joined: Jun 2003
Posts: 3,620
From: Saginaw, Michigan
Well, I installed NGK TR55's and I gapped them to 0.050". I drove the car again for the first time tonight after the plug install. They ran awesome. Very smooth. Keep in mind though that I had lost the platinum puck on 4 of the 8 AC Delcos that I had. They were the stock plugs and were in for 61k miles. I thought the car still felt smooth then. Now it's even better. No misses up to redline.
They are working well for me so far. I'll see how things keep going.
Dan
They are working well for me so far. I'll see how things keep going.
Dan
Registered User
Joined: Jul 2003
Posts: 1,103
From: Hawaii
If I find something wrong with the NGKs and or the wires I will post it here.
. It looks as if the metal electrode expaded till the porcelain gave way and cracked. It has dry deposits on it that look like rust but of a brownish color. I read on the chiltons book this type of fracture will cause the timing to appear retarded too.I have never had this happen before with any other plug.. I once "cracked" the outer porcelain of a spark plug my self while installing it on an escort. Cant blame the plug for that.... this one is a defective one.
So either I got a defective one, poor design, or bad production quality... either way it sucked big time. All the other plugs have the perfect color on them and they are clean.... so I know they are of the perfect temp range.
Ranting about....
Marvin
Registered User
Joined: Sep 2003
Posts: 5,907
From: The Wild West
Originally posted by MentalCaseOne
It has dry deposits on it that look like rust but of a brownish color.
It has dry deposits on it that look like rust but of a brownish color.
-Dustin-
Registered User
Joined: Mar 2001
Posts: 2,521
From: Costa Mesa, CA
Jeez before long NGK plugs will get blamed for as many ignition problems as the opti does
Well here goes. I replaced the stock ACdelco platinum plugs(original) with some new ACdelco platinum plugs right around 100k miles. Didn't notice a diference.
I even ran those for a while with heads/cam and had no problems but then swapped for a set of Champion copper plugs. Once again, didn't notice a diference.
Next I put a set of NGK TR-55s in, and didn't notice a diference.
I guess what I'm getting at here is a spark plug is a spark plug. I've tried three diferent brands and none have given me problems, and they have all performed on the same level.
If I had to make any recommendation I would suggest ACdelco simply because that's what was in the car when it was new.
Well here goes. I replaced the stock ACdelco platinum plugs(original) with some new ACdelco platinum plugs right around 100k miles. Didn't notice a diference.
I even ran those for a while with heads/cam and had no problems but then swapped for a set of Champion copper plugs. Once again, didn't notice a diference.
Next I put a set of NGK TR-55s in, and didn't notice a diference.
I guess what I'm getting at here is a spark plug is a spark plug. I've tried three diferent brands and none have given me problems, and they have all performed on the same level.
If I had to make any recommendation I would suggest ACdelco simply because that's what was in the car when it was new.
i just ordered a pair a few days ago hopefully i dont have the same problems u guys are having
Registered User
Joined: Mar 2001
Posts: 2,521
From: Costa Mesa, CA
BTW for you guys ordering plugs online Advance Auto Parts carries NGK. I gave them the part number I found online for the TR-55(do some research if you need it) and the guy behind the counter ordered them for me and had them there by 8 am the next day. It'll save you some shipping charges.......
Registered User
Joined: Aug 2001
Posts: 305
From: Central NJ USA
Just some of my experiences.
NGK (aka: No Good Kind) center electrode wears extremely fast, have seen them down to the porcelin at 25,000 miles. They tend to change resistance (increase) when tightend down to the proper spec.
AC plats. good for factory or mild setups. No real problems.
Autolite, good plugs, run them in the race car so I cant really comment on the longevity.
Bosch +4, have them in the ss now. Working very well with 15,000 on them. First time using these and so far Im pleased.
Kevin
NGK (aka: No Good Kind) center electrode wears extremely fast, have seen them down to the porcelin at 25,000 miles. They tend to change resistance (increase) when tightend down to the proper spec.
AC plats. good for factory or mild setups. No real problems.
Autolite, good plugs, run them in the race car so I cant really comment on the longevity.
Bosch +4, have them in the ss now. Working very well with 15,000 on them. First time using these and so far Im pleased.
Kevin
Registered User
Joined: Sep 2003
Posts: 5,907
From: The Wild West
Last edited by Bersaglieri; Apr 10, 2004 at 02:36 AM.
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