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5.0L (1979-1995) Mustang Technical discussions on 5.0 Liter Mustangs within. This does not include the 5.0 from the 2011 Mustang GT. That information is in the 2005-1011 section.

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Old 07-21-2007, 03:50 PM   #1
ColdCityMustang
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Default Spark plugs for nitrous application

I have a 1995 GT mustang , NOS recomends that the plugs be 2* colder than factory, does anyone ha\ve a NGK spark plug part number?
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Old 07-21-2007, 04:18 PM   #2
WhiteWindsor
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Default RE: Spark plugs for nitrous application

Callor e-mail their tech line, they willlet you know. I run autolite 3923 on 11:1 351. Autolite told me to step down to a 3922 with nitrous and retard timing.
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Old 07-21-2007, 04:49 PM   #3
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Default RE: Spark plugs for nitrous application

NGK 2249
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Old 07-21-2007, 05:52 PM   #4
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Default RE: Spark plugs for nitrous application

why are you running an NGK plug in a ford anyways? 99.999% of mechanics will tell you regular copper core autolites work the best, even for cars that arent fords
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Old 07-21-2007, 06:30 PM   #5
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Default RE: Spark plugs for nitrous application

NGK is where its at
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Old 07-21-2007, 10:10 PM   #6
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Default RE: Spark plugs for nitrous application

How big of a shot are you running? What plugs to get usually depends on that. Of course, I'm a fan of copper autolites myself.
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Old 07-21-2007, 11:14 PM   #7
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Default RE: Spark plugs for nitrous application

NGK is a brand not a type of plug. I was reading up the other day in a magazine that for nitrous you use an ngk brand plug because the electrode is smaller and if the combustion chamber temps get to hot from leaning out the electrode on the plug will melt because its smaller then autolite and other brands. It ends up saving your motor and just destroying the sparkplug. Just a thought
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Old 07-21-2007, 11:16 PM   #8
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Default RE: Spark plugs for nitrous application

I run motorcraft plugs with a 100 shot, timing set at about 10-12
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Old 07-21-2007, 11:30 PM   #9
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Default RE: Spark plugs for nitrous application

Im pretty sure that you have to go to a higer plugnumberfor NGK'S unlike american plugs autolite..ect ,you go lower.
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Old 07-21-2007, 11:30 PM
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