Spark plugs?

[jbuck1975]

What causes spark plugs to burn up faster than normal?

EVO deck'd out with Bruce Lee

[jamesmc]

This may help.

[FestYboy]

a coil that isn't hot enough or poor grounding.

[Movin]

Heli coil spark plug holes or any other damage to spark plug threads in the head. Spark plugs dissipate most of their heat through thread contact to the head. Dirty or carbon fouled threads, loose threads, will contribute to heat damaged plugs.

This assumes you are using name brand plugs of the proper heat range.

Some name brands acquired by Federal Mogual have started having some
problems likely due to funding cuts. The problems are the bonding material between the porcelain and the thread shell. The bonding material baking up the plug contributes to flash over and plug - boot failure. If left in place sometimes combustion will leak through. This isn't your problem but a warning that you could bolt in a new problem..check what others are currently having success with.

[jbuck1975]

What plugs should I buy for a better heat range. Right now Ive got autolube

EVO deck'd out with Bruce Lee

[hotfordcat]

What plugs should I buy for a better heat range. Right now Ive got autolube

EVO deck'd out with Bruce Lee

^^^ Autolube!!hahaha
I use Bosch +2 plugs in all three of my Festivas.

[perucho]

What causes spark plugs to burn up faster than normal?

EVO deck'd out with Bruce Lee

What do you mean by burn up? Can you post a picture of your plugs? Also, what do you consider normal? You may only need to get a colder plug (meaning, it dissipates heat faster). But too many unknowns to give you a good answer. Try changing to NGK v-power copper plugs (good and inexpensive). Still, post some pictures of your plugs, it could be many things messing up the plugs.
For heat range info, check these sites:

http://www.ngk.com/glossaryImage.asp?imgID=93

http://www.ngk.com/glossary.asp?kw=How+do+I+find+a+colder+or+hotter+plug?&manID=1&pt=

[FestYboy]

^^^ Autolube!!hahaha
I use Bosch +2 plugs in all three of my Festivas.

our ignition systems aren't designed for platinum plugs (higher internal resistance) and the Bosch +2 and +4 are total JUNK (and a gimmick to boot, just like the E3s). better off with an NGK, Denso, or a quality coper core. besides, they're cheaper too

[TominMO]

I use the NGKs, indexed so the open end of the electrodes faces the intake side. The only point I see for the E3s is if you don't index the plugs this way.

[91_festy_Gl]

NGK is the best plugs for our engine IMO. Standard NGK's work perfect.

[JohnGunn]

Heli coil spark plug holes or any other damage to spark plug threads in the head. Spark plugs dissipate most of their heat through thread contact to the head. Dirty or carbon fouled threads, loose threads, will contribute to heat damaged plugs.

Here's another much more common source of plug overheating -- the urban myth that spark plugs should be installed using anti-seize compound. If you use the common form of anti-seize compound it will restrict the flow of both current and heat from the plugs through the threads to the head. Sure to contribute to abnormal heat build up.

I've had a set of Bosch Fusion plugs fail after a very short time. I'm convinced they failed because I put too much anti-seize compound on them. I have tested a set of stock Ford plugs on my Aspire without the use of any anti-seize compound and have seen absolutely no sign of seizing. Click here to read my post describing that experiment.

But I should tell you I cleaned the thread holes completely. Otherwise who knows what might be in there to gum up the works.

[Oren09]

^ I never thought about the conductivity of anti-seize but that makes sense.
More resistance = more heat and less spark.

Luckily I don't use anti-seize. My spark plugs aren't in long enough to seize in the head.

[iceracerdude]

copper plugs just don't last very long, but they cost less...go figure.

Platinums take way more heat than copper, and iridiums take way more heat than platinums. You can google that
I run NGK Iridiums, but I also run 10 pounds of boost (a lot more heat than you'll ever see) All with the stock ignition system (97)
The first thing you notice is, the car will start much easier, faster.

[Movin]

The fine tip of iridium seems to ignite better under stress as well. I like them. New plugs of most any brand have a finish applied designed to resist seizing. This seems to work for 50k of the 100k miles they are advertised to go. Bosch as of late have been removed to solve drive-ability issues a lot. One thing about copper core, they usually work really well for 20K then you change them before they seize, thats good, unless it takes a shop 3 hours to change them.. If one seizes on the 100K plugs and a shop charges to remove it nothing is saved dollar wise and you have a messed with plug hole that runs a little hotter..catch 22 !!

[jamesmc]

I used the standard NGKs on my B3, never had any problems. Moved to NGK Iridiums with my BP (because racecar) and also have no problems. The BP does start a bit quicker, but I honestly don't think it matters that much. As long as they're changed often enough, I'm sure NGK V-Powers are more than sufficient.