Re: EGT\'S
[/QUOTE]
just wondering. I was thinking the Bosch wideband o2 were only rated upto 900 degrees(might be wrong). Just trying to figure out if that thing is gonna fry if I stick it in there.
[/QUOTE]John -
The Bosch 02 sensor your referring to is sensitive to extreme heat. However, highest EGT's are measured right at the exhaust flange exiting the head. Subsequently, the flange is not the place you would locate the 02 sensor.
Placement of the sensor would be further downstream where chambered exhaust pulses are exiting at a lower temperature.
If your going to mount the 02 sensor relatively close to the collector this is a method I would highly recommend. Get yourself a thin sheet of aluminum approximately .080 thick, 2"x2" or 3"x3" in size. Drill a hole the center of the sheet the circumference of the OD thread of the 02 sensor. Mount the sensor through the aluminum sheet and screw the sensor into the exhaust ****. The aluminum sheet works as a heat sink to dissipate much of the heat.
Good Luck!
Doug