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Old 08-23-2003, 09:29 AM   #1
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Default whats my plug say??

this is my plug after my run yesterday...granted there was a heavy dose of after run oil in it over the night htis is what it looks like.

for those of you who can read a plug what is it saying??? BTW it is the same plug that I used for break in.
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Old 08-23-2003, 09:30 AM   #2
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another
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Old 08-23-2003, 09:31 AM   #3
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and the another
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Old 08-24-2003, 02:48 AM   #4
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Can't really see it. Need close ups. The coils would most likely burn off the oil. This might cause it to take long to start the engine.
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Old 08-25-2003, 04:25 PM   #5
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My plugs have never said anything to me, BRAAAA!!!!!! You need to put a brand new plug in after break is done, run it like 2 tanks then look at the plug, looking at the plug you used for break in doesn't do much for you. Definately need closer pictures and maybe try taking them with good light on the plug but with no flash. Also what type of racing is it for?
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Old 08-25-2003, 04:27 PM   #6
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for back yard bashing

I am currently ordering some O.S. #8 plugs to replace them
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Old 08-31-2003, 07:22 AM   #7
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Default Corvettecrazy

go here to learn how to read glowplugs as well as lots of other tuning tips: http://www.parisracing.com

How to "READ" your glow plug.
OS and Turbo glow plugs go gray sooner [easier] than McCoy plugs; this is not necessarily bad. Actually when A new plug wire just goes slightly gray after a 5 or 10 minute hard run it means your very close to an optimal horsepower tune, but be careful the next step is TOO LEAN!
My rule of thumb.
1} Wire and surrounding bottom of plug wet, with like new shiny wire = rich side of optimum power 85%
2} Wire and surrounding bottom of plug starting to dry and wire starting to gray = Very close to optimum power 95%
3} Wire and surrounding bottom of plug dry, wire totally gray but not distorted optimum power 100%
4} Wire and surrounding bottom of plug dry, wire distorted = slightly lean DANGER!
5} Wire and surrounding bottom of plug dry, wire broken and distorted or burnt up = extremely lean possible engine damage!

Note: You can only "Read" your plug in a nearly new state [Wire like new and shiny] A gray plug can still operate well. But after it has totally gone gray performance can start to fall off. To test just put in a new plug and if there is no difference in performance save the gray one or put it back in. If your engine does not feel or run right tray a new plug before making major tune change's

Good luck,
Ron Paris

(taken from the Paris Racing website)
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