O2 Sensor

[Shannen Durphey]

Dave Williams wrote:
> 
> -> On the same topic, how close can you put the sensor?  I can very
> -> easily pu one about four inches from the exhaust port, but have been
> -> worried that it is too close.
> 
>  I've seen newer four cylinder engines with the sensor about eight
> inches from the port, where the ports came together at the exhaust pipe.
> David Vizard's "How To Make Horsepower Volume 2" shows some dyno headers
> with individual O2 sensors mighted right by the header flange, but they
> were raised so only the tips stuck out into the exhaust stream.  I asked
> about that positioning on the now-defunct dac list, and a couple of
> people said they'd run them that way with no troubles.
> 
> ==dave.williams at chaos.lrk.ar.us======================================
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> 
The 88 and 89 tbi Chevy pickups had the sensor within a couple inches
of the rear exhust port on the LH bank. 
Shannen