Best plugs????
06-04-2007, 07:32 PM
#1
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Best plugs????
What are most of you guys with big power running as far as plugs go? I hear alot about NGK but I am not sure if its just alot of hype.....
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06-04-2007, 10:42 PM
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bc = 14 mm 5/8 jis type ( whatever that means)
p = projected tip
r = resistor
7= heat rating 2-12 2=hot 12 = cold
e = 19mm reach
s = standard electrode
I was on the phone with the tech at ngk and was looking for a colder plug than stock. trying r5673-7 non resistor racing plug. Can't find any info on them!
Last edited by hunster; 06-04-2007 at 10:45 PM.
06-04-2007, 11:29 PM
#8
I run the R6574-7 in the Chevelle and 8's&9's on the juice. Also ran the 8's in the blower motor in the Scarab.
I like the R series there shorter and are the Race series.I was told there hand assembled also.
I like the R series there shorter and are the Race series.I was told there hand assembled also.
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06-05-2007, 08:26 AM
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Rob, would these work on a procharged 509? Is that a colder range than stock and what gap for a stock ignition?
