Call Champion spark plugs and they will tell you everything you want to
know...on their tech line.. a couple of the folks there are great... Keith
Turk
----------
> From: Daniel1312@aol.com
> To: JZIMMERM@exch.co.albemarle.va.us; spridgets@autox.team.net
> Subject: Plugs was Re: O2 Sensor for Tuning Carbs & Spark Plug Question
> Date: Friday, May 14, 1999 10:22 PM
>
> In a message dated 14/5/1999 9:19:44PM,
JZIMMERM@exch.co.albemarle.va.us
> writes:
>
> << Another question that I have is the effect of spark plug heat ranges
upon
> combustion. Exactly how do heat ranges affect the combustion process?
> Assuming that I were running a mixture slightly richer than
stochiometric,
> what effect would a colder or hotter plug have on the combustion? TIA
> >>
> Hi Jackson,
>
> Interesting point. I think it is more a case of too hot a plug causing
> premature combustion or simply damaging the plug and or the piston crown
> (obviously the plug grade has to be some way out). A colder plug simply
> fouls in slow driving because it fails to burn off deposits.
>
> I think that as least as far as the A series engine goes plug type
doesn't
> make much difference (ie plug electrode type) to power. I would assume
that
> the amount of spark energy makes more difference that the plug itself.
>
> Finally, what I have written above is only my best guess opinion based on
> limited experience. I haven't ever found much technical writing on plugs
> (advanced stuff that is).
>
>
> Daniel1312
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