By the way out here in the Phoenix AZ area both Orelileys and Autozone are out or limited stock on all the non racing Champions we discussed here.
What Champion Plug ru Using in you 340?
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dibbons
Well-Known Member
Funny nobody here has mentioned the fact they might have an old school spark plug cleaner on a dusty shelf somewhere in the garage (lol).
And I have the walnut shells as well lol
dibbons
Well-Known Member
I always thought the media was a fine sand.
Thats close. They don’t show where a 2 Champion fits.
And it shows the 61 and 63 as the same 8 heat range when the 63 is closer to a 7.
I’d say pick a range colder than you might think and tune from there.
Walnuts weren’t invented until 1987
Yup lol
NGK Copper plugs were in use in the mid 70s. I had them in my Honda m/cycle. The Champion R-6 plugs did not have copper & fouled very quickly. I remember adverts by Champion rubbishing the NGK copper plugs, saying the copper would melt, yada, yada
Now Champion &...........the others use copper.
The copper centre electrode has NOTHING to do with electrode tip material, which could be steel, Plat, Irid, Yttrium, etc.
The copper is NEVER exposed to the flame; it is enclosed in a nickel steel jacket. What the copper did was to extend the heat range of the plug. It removed heat faster so that a hotter plug can be used to burn off deposits, but not cause pre-ign at higher loads.
Those who really want to learn [ & not the BS in this thread ] about spark plugs, heat range, spark gap etc should buy the Bosch Automotive Handbook. I have the 9th edition, 1544 pages. There is 8 pages of fine print on ign systems.
Now Champion &...........the others use copper.
The copper centre electrode has NOTHING to do with electrode tip material, which could be steel, Plat, Irid, Yttrium, etc.
The copper is NEVER exposed to the flame; it is enclosed in a nickel steel jacket. What the copper did was to extend the heat range of the plug. It removed heat faster so that a hotter plug can be used to burn off deposits, but not cause pre-ign at higher loads.
Those who really want to learn [ & not the BS in this thread ] about spark plugs, heat range, spark gap etc should buy the Bosch Automotive Handbook. I have the 9th edition, 1544 pages. There is 8 pages of fine print on ign systems.
I was going to buy a 100 BUT only two plugs left in their inventory
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