X-Mozilla-Keys:                                                                                 
Tracy Crook wrote:

Hey guys.  Although I threw this question out about 2 weeks
ago, I didn't get the answer (in context) that I was looking for
necessarily.  I tossed the question of the reliability of your
standard, non-wide band O2 sensor, that you can purchase
for $25 at AutoZone or Pep Boys or whatever, in measuring
true O2 content in the context of air/fuel ratios in very hot
EGT's in terms of wide open throttle and hundreds of
horsepower.

This is a topic of a rather hot debate that's been going on
for quite some time in the racing world (at least with what
I've seen).  Even though I believe them to be reliable for
being used in closed-loop mode and what have you, I still
question whether or not a guy like me, that's attempting to
make several hundred horsepower for racing use, can
trust this cheap sensor on a properly-measured air to
fuel ratio meter in the cockpit for measuring the O2 content
accurately when things are nice and cooking in the exhaust.

Thanks.

B

I have about 350 hours on my Auto Zone O2 sensor and it still works fine for
my mixture gauge. It's responce speed may not be good enough for standard
automotive ECU use due to the leaded fuel I burn at times but for my use,
who cares?

Tracy

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