Question about heat ranges in Champion plugs

-
DusTed74

DusTed74

Well-Known Member
Joined
Nov 12, 2006
Messages
948
Reaction score
181
Location
Oklahoma
Here's my question. If you look at the picture that I took you will notice that the one on the right is a colded than the left.
The heat number on both number 12. You can see in the photo that the numbers are the same except for the hex head.
I would really like to know.
Thanks................Ted

001.JPG


006.JPG
 
you can extend the tip of the plug or recess it and still have the same range
 
Those RC plugs are handy if you have headers and clearance issues.
 
You cannot directly compare heat ranges of different type plugs. They are a "relative" number ONLY in the same series of plugs

You can see this yourself. Look at how the plug is made. One has much more mass. The heat conductivity is much different between the two types.

They also, "by the book" are only a starting place
 
Hey Ted. I believe it has to do with the in head part more so than the porcelain end. I could be wrong. I thought it had to do with the electrode distance and porcelain under it.
 
DusTed74 said:
Here's my question. If you look at the picture that I took you will notice that the one on the right is a colded than the left.
The heat number on both number 12. You can see in the photo that the numbers are the same except for the hex head.
I would really like to know.
Thanks................Ted

View attachment 1715807541

View attachment 1715807542
Click to expand...

A 12 is always a 12. Doesn’t matter what shell is on the plug.
 
You must log in or register to reply here.
-

Back
Top