Running all 9's...
#1
REINCARNATED
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Running all 9's...
Well, we all know (or should know) about trailing and leading plugs
I've heard from a couple people with rotary knowledge that running 9's will be 'safer' and last a little longer than running with 7's in the leading holes
what benifits can be seen from running all 9's?
Basically what are the pro's and con's?
thanks for the insight
-Markus
I've heard from a couple people with rotary knowledge that running 9's will be 'safer' and last a little longer than running with 7's in the leading holes
what benifits can be seen from running all 9's?
Basically what are the pro's and con's?
thanks for the insight
-Markus
#3
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Join Date: Jul 2001
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I was told by a mechanic who specializes in these cars that the 9 and 7 is the heat rating of the plug so he runs all 9s which is a colder plug. So I don't see any con's to this, pro's would probably be less detonation prone. Next change I'm going to try it out.
#7
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Colder plugs are more prone to fouling if you're running too rich. If you're running stock or near stock power levels, you should just stick with the stock configuration.
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#9
Eat, sleep, work, mod.
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anytime you're mixture is leaned from stock such as with an AFC you should run 9's all around to be more detonation resistant. just like with a piston engine if you're making hotter more violent combustion (running leaner) colder plugs give you a safety margin.
#10
dude DONT do it there was the same # plugs in my car when i got it, it ran like sh*t!! go with the NGK 9s on top and NGK 7s on bottom trust me it will run alot better!! they r both the same price so u mys well do it the right way!! PEACE!!
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