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Re: Spark Plugs



Hi All,
          I would actually argue that the problem with automotive spark
plugs is the absolutely appaling quenching they would provide.  In a small
system they should hold up quite well cooling wise as long as you use a fair
number of them in series and heatsink them.  You may be able to get decent
quenching by airblasting them - but standalone the electrode design is very
poor for a tc system.  As I'm building a small system for a magazine article
I might give them a go.

Regards
Nick Field

----- Original Message -----
From: Tesla List <tesla-at-pupman-dot-com>
To: <tesla-at-pupman-dot-com>
Sent: Friday, February 18, 2000 11:59 PM
Subject: Re: Spark Plugs


> Original Poster: "Bunnykiller" <bigfoo39-at-idt-dot-net>
>
> Tesla List wrote:
> >
> > Original Poster: "Ted Rosenberg" <TRosen1-at-Tandy-dot-com>
> >
> > Based on the use of NON resistor spark plugs, properly gapped and
connected
> > and seated and cooled.....what's wrong with using them?
> > Or in other words, why are we trying to invent a better spark plug when
GM
> > and Ford and those guys spend much more money on the development? What
am I
> > missing here?
> >
> > Ted
>
>
>
> the word is COOLING   true   automotive plugs handle the cylinder head
> heats and spark ranges near 30KV but the amperage is low in auto use...
>
> TC's can pump 100's maybe even thousands of amps per "cycle" at 20KV
> auto plugs just arent made to handle that kind of abuse for long...
>
> I used tungsten electrodes for my single gap set and even those didnt
> last ( tungsten rods  as in rods used for welding :)   )
>
> Scot D
>
>
>