Spark plugs

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Roy Payne
Posts: 4
Joined: Sat Jan 22, 2011 7:13 pm

Spark plugs

#1 Post by Roy Payne » Thu Feb 10, 2011 12:24 pm

What is the difference between Champion spark plugs N4 and N4C. Can these be mixed in the same engine ?
Roy of the Rover

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TerryG
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Location: East Midlands

Re: Spark plugs

#2 Post by TerryG » Thu Feb 10, 2011 12:46 pm

This is a link to a page on Champion's website detailing what the numbers on their plugs mean.
http://www.championsparkplugs.com/spark ... cturerID=2

Those aren't complete codes for the plugs so it is hard to know exactly what you have.
Understeer: when you hit the wall with the front of the car.
Oversteer: when you hit the wall with the back of the car.
Horsepower: how fast you hit the wall.
Torque: how far you take the wall with you.

Roy Payne
Posts: 4
Joined: Sat Jan 22, 2011 7:13 pm

Re: Spark plugs

#3 Post by Roy Payne » Thu Feb 10, 2011 4:12 pm

Cheers Terry - doesn't seem to be much difference.
Roy
TerryG wrote:This is a link to a page on Champion's website detailing what the numbers on their plugs mean.
http://www.championsparkplugs.com/spark ... cturerID=2

Those aren't complete codes for the plugs so it is hard to know exactly what you have.

richardtaylor
Posts: 34
Joined: Tue Feb 15, 2011 8:05 pm

Re: Spark plugs

#4 Post by richardtaylor » Sat Feb 19, 2011 8:41 pm

If memory serves the C stands for copper this refers to the material used for the core of the plug.

Champion also did "CC" plugs with double copper cores - Unipart sold these as "performance" plugs under the Surefire name

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