Anybody know how to or were i can test my pyro for accuracy?

Just seems like a good idea to do every once in a while for the amount of "faith" we put in these things.

-Jake

 

This is tough one, you're almost stuck with just trusting them. Unless there is a bad connection they are actually very trustworthy. Even though a pyro is only accurate in the middle of it's range they really should show pretty close to the outside temp when the engine is cold, if it doesn't that should be a warning.
One way is to have a another pyro or a thermometer that will measure that high. We have this sort of thing in the labs at work, I found that a 100 watt light bulb with the pyro thermocouple attached with aluminum foil wrapped around the entire bulb puts out a constant 950°. Of course this could vary with the voltage in your area.
Another way I've never tried is to use a welder's stick, these are available in a wide range of temps and only melt when that temp has been reached. Then you use the stick to find a source of heat (like a light bulb) in the 1000° range and use it to see what you pyro measures.
One thing I know for sure doesn't work is a infrared temp gun aimed at the manifold, the exhaust gas temp is always way different than the steel.

 

Yes the manifold is at least a few hundred degrees less than the air inside of it. I'd say just trust it as long as it doesn't start jumping around a bit. When I first installed mine it was burying past 1800 and changing with the blinker, I found that the wires weren't on well enough and somehow the SS braiding of the probe's wire was shorting to ground. The only other point I know to really test it with is boiling water which is 212.F

 

I always look at my pyro at shutdown time, usually it is at 340 when I get the truck into park, and use it as a referance, and if that were to to change by much it should alarm me that something could be wrong. Just my .002

 

use a dig.thermometer......pull probe ,,set beside the thermomter probe...hit it with heat gun....now the guage and thermometer shoul read about the same

 

You can put your probe in boiling cooking oil, it should be 572 degrees F.