Here's an interesting experiment to show why your engine didn't die..
First, go to your stove.. Set it to 550 degrees.. Once it hits that
temp,
open it, and quickly stick your hand in and out.. You felt the heat,
but
no damage, right? Now, take your other hand and leave it in the
same
oven for about 1 minute. Remove your toasted/charred hand, note
the
major skin damage. Yet both hands were exposed to the same high
temperature... :)
Ok, so seriously, damage caused by heat takes time to occur. Depending
on how hot you get, it could take a few seconds, or it could take longer.
Many months ago my EGT's almost hit 1100 (Mike Welch was driving)
:)
which no doubt meant the engine spent several seconds beyond 900.
Very
brief periods above 900 degrees are not good for your engine, but won't
necessarily kill it.
>Whoever said lean out your AFC settings on the higher end because the
>ECU will try to richen the mixture has to be wrong because it doesn
>make sense.
Definitely doesn't (make sense), that info probably wasn't posted on
the
SoCal list... ? If there's one rule you should follow when tuning
with
an AFC or other fuel computer, it's that there's no rule that works
for
all cars :). Every car is different. You have to make adjustments
based
on how your car responds. You could compare with a car that has
similar
mods and find that the other car's settings run cool for him and rich
for
you, or vice versa. Trust in your handy EGT gauge.. Look at not
only how
high it peaks but how fast it rises after 810 degrees.. And remember
that
it's always better to run a little richer and lose a few horsepower
than
a little leaner and lose a few thousand dollars in engine work.
Best,
Marc
Contact Road///Race Engineering