Need new plugs & wires - Page 2 - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


1992-1999 Series I L27 (1992-1994 SE,SLE, SSE) & Series II L36 (1995-1999 SE, SSE, SLE) and common problems for the Series I and II L67 (all supercharged models 92-99) Including Olds 88's, Olds LSS's and Buick Lesabres Please use General Chat for non-mechanical issues, and Performance and Brainstorming for improvements.

Reply
 
 
 
Thread Tools Search this Thread
Old 03-03-2007, 02:57 PM   #11
Junior Member
Posts like a Ricer Type-R
 
Join Date: Aug 2002
Posts: 10
Thanks: 0
Thanked 0 Times in 0 Posts
willwren is on a distinguished road
Default

Chip, this topic is about plugs and wires. Please try to stay on topic. The brake information will rapidly take this off-topic.

In addition. Bosch themselves have acknowledged that their spark plugs (of all designs) are a poor choice for waste-spark ignition systems like ours. Knowing this, it'* very poor practice to suggest them to any person owning a car that uses this type of ignition system.

Quote:


Bosch acknowledges a problem with using their Bosch Platinum spark plugs
in engines with ignition systems that employ 1 coil for each pair of spark
plugs (also known as a "waste spark ignition system").

The problem that Bosch has acknowledged when using their Platinum plugs
in engines with waste spark ignition systems stems from the tendency of
electrode metal to get transferred depending upon the polarity (direction
of current flow) of the spark. In waste spark ignition systems, 1/2 of the
plugs always see reverse polarity sparks. Given the very narrow platinum
center electrode of the Bosch Platinums, performance will be degraded more
significantly when reverse polarity sparks will cause material to be
transferred from the large ground/outer electrode onto the narrow platinum
center electrode'* exposed end surface.





All GM 3800'* are Waste Spark. This is not a myth. This is from Bosch themselves, and the information was obtained the same way I obtained my information above from NGK. A phone call.

http://www.brickboard.com/ARCHIVES/1...10003481.shtml

And it'* not just them or us:

Quote:
http://www.taurusclub.com/forum/inde...showtopic=2915

AT LEAST a 36.25% failure rate in our sample size of 80 vehicles

17.5% failed immediately

Another 18.75% that didn't fail immediately failed within 20K miles (premature for a platinum plug)

There are still another 31.25% that are working so far, but haven't accumulated 20K miles yet. So they are "up for grabs" statistically, an could inflate that 36.25% failure rate even higher.

Still want to gamble?

Dan



And there'* more information out there.
willwren is offline   Reply With Quote
Old 03-03-2007, 08:02 PM   #12
PopaDopaDo
True Car Nut
 
popatim's Avatar
 
Join Date: Jan 2005
Location: NY
Posts: 4,957
Thanks: 0
Thanked 0 Times in 0 Posts
popatim is on a distinguished road
Default

I just bought the NGK'* from Advance auto, they were $1.88 each, quite a bargain I thought. It crossed to part# 3951 which NGK'* website says is the Stock#.
The boxes all said NGK TR55. LOL
popatim is offline   Reply With Quote
Old 03-04-2007, 08:35 PM   #13
Senior Member
Posts like a Turbo
Thread Starter
 
Join Date: Sep 2005
Location: Puerto Rico
Posts: 409
Thanks: 0
Thanked 0 Times in 0 Posts
alexcoqui is on a distinguished road
Default

OK, but the ones at Advance auto parts are: (Iridium IX Plug; TR55IX) & since there is no NAPA here, the Beldem wires are not available for me. Should I stick to stock ones or is there a better option. We have PepBoys, Advance, & Wester Auto.
alexcoqui is offline   Reply With Quote
Old 03-04-2007, 08:44 PM   #14
PopaDopaDo
True Car Nut
 
popatim's Avatar
 
Join Date: Jan 2005
Location: NY
Posts: 4,957
Thanks: 0
Thanked 0 Times in 0 Posts
popatim is on a distinguished road
Default

I'm fairly certain Pepboys doesn't stock any 8mm wires, even their best is only 7mm but they have a lifetime warranty and I've replaced them 3 times so far.

And Wetern auto is part of the Advance Auto/Parts America franchise as far as I know so I doubt they'd have much different.

I can't comment on the irridium plugs, I cant remember if they were a NO for our engines or for my truck...LOL
popatim is offline   Reply With Quote
Old 03-04-2007, 10:29 PM   #15
Senior Member
True Car Nut
 
Join Date: Jul 2004
Location: Grand Rapids, Mi
Posts: 5,656
Thanks: 0
Thanked 0 Times in 0 Posts
Archon is on a distinguished road
Default

Doing a search with Advance Auto parts, it shows that they carry both the AC/Delco and Autolite plug wires. Either would be fine, as are the Iridium plugs.
Archon is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
Questions about Spark Plugs, Plug wires, & Ignition Coil porksoda Performance, Brainstorming & Tuning 15 09-21-2011 03:33 PM
$&)$&*)#&+()#%& )#@(%&#)%*(&+_ Maymybonnieliveforevr Lounge 6 05-02-2007 07:07 PM
Need New and best Spark Plugs Wires Snuggles.bf Performance, Brainstorming & Tuning 23 08-08-2006 12:56 PM
Keep old plugs & wires? scottydl Everything Electrical & Electronic 5 06-22-2004 09:20 AM
New plugs and wires......now shuddering and cutting out.. :( jgs11 1992-1999 11 04-27-2004 08:29 PM


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off



All times are GMT -4. The time now is 12:52 PM.


We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.