[Supras] Colder plugs, when do yall use them?

[Chris Smyczek]

Cold plugs transfer more heat. Increased boost creates increased heat
generally. A lower heat range, ngk 6, will start to glow like a glow plug
and lead to preignition under certain conditions. Using a plug which is too
cold, ngk 10 heat range for example is safe but may end up fouling. If you
are racing, the engine is not run enough at low rpms to foul plugs which
otherwise may be too cold (on the street). Chris

-----Original Message-----
From: supras-bounces at supras.com [mailto:supras-bounces at supras.com]On
Behalf Of Walker, Brian (Rich. Dist)
Sent: Wednesday, June 13, 2007 8:12 AM
To: Supras at supras.com
Subject: [Supras] Colder plugs, when do yall use them?


I've tried a range colder (I run 2330, so I believe 6097 was the colder
version) I didn't like them for normal around town use. I am however
thinking they may be a better suited plug for road course use than the
stock range. Have others used these mainly for race use? At my last
event I had old plugs in and boost turned back. The car had no power
above 4.5k. I was thinking a colder plug might do much better even when
it's been left in too long.

Brian




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