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Old 07-14-2014, 09:38 AM   #164 (permalink)
hackish
Calibration Engineer
 
Join Date: Jan 2010
Location: Canada
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Quote:
Originally Posted by Ecky View Post
I haven't read the thread, but that's an excellent point. There's definitely a problem with emissions testing methodology when it looks at PPM and not the actual amount of pollution.
Emissions programs define limits based on the engine so it really isn't a shortcoming of the system. If you want to know the total pollution you simply multiply by airflow. The newer test cells all do this automatically if you care. As a calibrator my objective is simply to minimize the output in a fixed set of conditions.

-Michael
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