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sparkplugs

To: land-speed@autox.team.net
Subject: sparkplugs
From: Scott Cowle <scowle@mentorcollege.edu>
Date: Tue, 24 Sep 2002 10:19:50 -0600
  I have experienced continued problems keeping plugs in my car for more
than 4 runs at maxton or about 6-8 runs on the dragstrip under a nitrous
load. I run plugs that are three heat ranges cooler than normal, retard the
timing according to NOS recommendations, and use up to 116 octane for a
250hp nitrous shot,and I have rejetted the carb so the plugs are slightly
darker than normal when the nitrous is on.I have used Champion, Accel, and
NGK mplugs, all to no avail.Am I asking too much from the plugs? Is this
kind of wear normal for nitrous run engines? At Maxton the nitrous is used
only in third gear for about 16-17 seconds. Would a supercharger do the same
thing to the plugs? Any comments are welcomed.
Scott

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