Quote:
Originally Posted by tasdrouille
Yup, it would be very interesting to have an HC measure taken pre CAT.
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Up until '00/01 the average Civic or Integra would pass 4-gas emissions for those model years with no cat, if the engine was sub-100K and in good repair. A number of the Cali guys in the early days of the turbocharging craze (~97) would have to go through dyno/4-gas emissions tests, the precursor to the ubiquitous scantool emissions testing that is standard in most locations now, and would pass with flying colors.
Cats have been regarded for years as a harmful device that restricts engine power & efficiency, encourages engineering sloth as the cat will clean up any emissions resulting from design error, and spews heavy metal particulate into the environment. I feel the same way about detergent additives in gasoline, they form toxic components that are not tested for and are harmful.